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Safety Signs

Caution Risk of Explosion Sign Printing

from £26.33 ISO 7010 W002

Caution risk of explosion sign printing for battery rooms, spray booths, gas stores and fuel stores. The sign flags a risk of explosion, and the biggest size reads from about 24 metres.

Turnaround
…Working out your price

Price is final, no surprises at checkout. UK delivery £7.95, free over £49.99 this week. Scottish Highlands +£10; islands and NI quoted.

Artwork

Design fees are fixed, shown as their own line in your basket, and cover the whole quantity of this item. You can also upload later: we email you after you order.

Charity, school, club or place of worship? up to 10% off every orderBusiness? up to 5% off your first order

  • Free UK delivery over £49.99 this week
  • Dispatch from 2 working days
  • Printed in the UK

Overview

If "Caution Risk of Explosion" needs saying clearly, this is the sign, and caution risk of explosion sign printing is what we do. It flags a risk of explosion, and you will find it in battery rooms, spray booths, gas stores and fuel stores.

Putting it up

Where people walk into the hazardous area. Mark the store and the route to it, so the warning is seen before anyone opens a door.

Before you order caution risk of explosion sign printing, think about how far away people will be. Rule of thumb from ISO 3864-1: each 25 mm on the short side of the sign gives roughly a metre of reading distance. That makes A4 to about 8 m, A3 to about 12 m, A2 to about 17 m and A1 to about 24 m. Long corridors, yards and car parks need the bigger sizes.

What the sign says

It reads "Caution Risk of Explosion". Yellow triangle, black border: the shape everyone reads as "watch out". The layout is a yellow triangle above black wording, plus the ISO 7010 W002 symbol (explosive material). The CAUTION heading tells people to watch out; the line beneath says for what.

Caution risk of explosion sign printing: which material

Our caution risk of explosion sign printing comes on three kinds of board:

  • 3mm Foamex, a rigid PVC foam board that screws or sticks up easily and is happiest indoors or out for a season
  • 3mm Dibond, aluminium skins on a solid core, the one to pick for a sign that stays outside for years
  • self-adhesive vinyl, which sticks flat to smooth walls, doors, glass and machine guards

Inside, Foamex or vinyl does the job. Outside for the long haul, go Dibond.

Match the sign to what is actually stored, and update it if the contents change.

COSHH and the Health and Safety (Safety Signs and Signals) Regulations 1996 both expect areas holding hazardous substances to be marked, so nobody walks in without knowing the risk.

Got artwork? Upload it. No artwork? Use the online designer, or our paid artwork service (1 design, 2 rounds of changes). Either way a person looks over the file first, free. Every caution risk of explosion sign printing order is made to order and dispatched from the UK. We charge £7.95 to send it anywhere on the UK mainland, and nothing once your goods come to £100 or more after discounts. Mainland Highlands postcodes add £10; Northern Ireland, the islands, the Isle of Man, the Channel Islands, Scilly and the Isle of Wight are quoted. Full details are on the delivery page.

Also worth a look: chemical and hazard signs and everything in safety signs. The guide to safety sign colours covers the choice in more depth.

Sizes and prices

Smallest first. Tap a price to load that size into the buy box.

Size3mm Foamex3mm Dibond aluminium compositeself-adhesive vinyl
A4 · 210 × 297 mm
A3 · 297 × 420 mm
A2 · 420 × 594 mm
A1 · 594 × 841 mm

Final prices per item with the lowest-priced options. UK delivery £7.95, free over £49.99 this week. Choose a price to load it into the price calculator.

Specs

Materials, sizes and finishing.

ISO 7010 referenceW002 (Explosive material)
MessageCaution Risk of Explosion
Sign typeWarning
Materials3mm Foamex, 3mm Dibond aluminium composite and self-adhesive vinyl
SizesA4 (210 × 297 mm), A3 (297 × 420 mm), A2 (420 × 594 mm), A1 (594 × 841 mm)
Viewing distanceA4: 8 m, A3: 12 m, A2: 17 m, A1: 24 m
PrintFull colour, single sided
Made byMade to order and dispatched from the UK
SKUFP-SAF-080
PriceFinal price shown in the configurator. No surprises at checkout.
DeliveryUK mainland £7.95 per order, free over £49.99 this week. Scottish Highlands +£10; islands and NI quoted.
Artwork checkFree file check on uploaded artwork (resolution, size and bleed).

Which size do I need?

A safety sign must be large enough to read from where people will see it. Our conservative guide, based on the distance-factor method in ISO 3864-1, is about 1 metre of viewing distance for every 25 mm of sign height (the shorter side). Use it with your own risk assessment.

SizeReadable from up to about
A4 (210 × 297 mm)8 m
A3 (297 × 420 mm)12 m
A2 (420 × 594 mm)17 m
A1 (594 × 841 mm)24 m

Well lit or internally lit signs can be read from further away; dim areas need larger signs.

Questions

Quick answers about caution risk of explosion sign printing.

What size do I need so people can read "Caution Risk of Explosion"?

Go by reading distance rather than wall space. In normal light, A4 (210 × 297 mm) covers 8 m, A3 (297 × 420 mm) covers 12 m, A2 (420 × 594 mm) covers 17 m and A1 (594 × 841 mm) covers 24 m. Choose one size up if people pass quickly or the area is poorly lit.

Does "Caution Risk of Explosion" come with a recognised safety symbol?

It does. The pictogram is ISO 7010 W002, Explosive material, drawn from public domain artwork and paired with the "Caution Risk of Explosion" wording.

Where is the best place to put the "Caution Risk of Explosion" sign?

Put it at the way in to the hazardous area. Fix it where it will not be hidden by doors, deliveries or vehicles.

Does the law say I must put up a Caution Risk of Explosion sign?

COSHH and the Health and Safety (Safety Signs and Signals) Regulations 1996 expect stores and areas holding hazardous substances to be marked. That way people know the risk before they walk in. How many you need and where comes down to your own risk assessment for "Caution Risk of Explosion".

Why is the Caution Risk of Explosion sign in these colours?

A yellow triangle with a black edge always means a hazard is ahead. The "Caution Risk of Explosion" sign uses that standard layout, so people read its meaning before the words.

Will the Caution Risk of Explosion sign survive outdoors?

Yes, if you order it in Dibond, which cope with rain. Foamex is better kept indoors or somewhere sheltered. Pick the material in the options before you order.

Can I buy more than one Caution Risk of Explosion sign?

Yes, change the quantity before you check out; every sign is made to order. Need a big mix of different signs for a school, club or site? Use the Get a quote page. Goods worth £100 or more travel free to a UK mainland address; below that, delivery is a flat £7.95 for the whole order.

Is the price shown for the "Caution Risk of Explosion" sign the full price?

Yes, for the goods. The price you see is the price you pay at checkout. Spend £100 on goods (design fees are not counted) and UK mainland delivery is free; otherwise it is £7.95 once.

Asked by buyers

How much will the Caution Risk of Explosion Sign set me back?

£5.02 is where the Caution Risk of Explosion Sign starts, set up as A4 (210 × 297 mm) and self-adhesive vinyl on the Saver speed. Change the size, material, extras, quantity or speed and the total on the page moves straight away. The price you see is the price you pay at checkout, with delivery the only thing that can be added. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted).

Is delivery ever free?

It is £7.95 for the whole order, not per item, and free once the goods reach £100 after any discount code; design or artwork charges are left out of that £100. On its own the opening price of £5.02 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A mainland Highlands postcode puts a single £10 on the order. Northern Ireland has its delivery priced before you pay, and so do the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man. Before delivery, this sign costs from £5.02. On this page, Caution Risk of Explosion Sign starts from £5.02.

If I buy the Caution Risk of Explosion Sign today, when will it leave you?

As the page first opens, the speeds for the Caution Risk of Explosion Sign are Express 2 working days, Standard 4 and Saver 6, counting Monday to Friday and skipping bank holidays. The count begins once we have your order and a file ready to print. A bigger size or a different material can move it by a day either way; each speed shows its own days as you choose. Tracking arrives by email on the day it ships, and the courier usually takes one to three working days from there.

Vinyl, Dibond or Foamex: which should we pick for a Caution Risk of Explosion Sign?

"Caution Risk of Explosion" might go up at a store for gas bottles or fuel, so the choice comes down to the surface and the weather. Vinyl is a sticker version for glass, doors and smooth paint. Foamex is a light plastic board, best kept indoors or somewhere sheltered. Dibond, an aluminium composite, is the long-life choice for outdoors and hard-wearing spots. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

Which sizes can the Caution Risk of Explosion Sign be printed in?

Smallest: A4 (210 × 297 mm), from £5.02. Biggest: A1 (594 × 841 mm), from £15.12. 2 more are listed in between, each priced on the cheapest options. Not sure which? Mark the space out with tape or string first and stand back to look. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. For reference, Caution Risk of Explosion Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).

How big does our Caution Risk of Explosion Sign have to be to read across a room or yard?

Stand where someone first needs to read "Caution Risk of Explosion" and pace out the gap to where it will hang. Then match that number: up to 8 m for A4, 12 m for A3, 17 m for A2 or 24 m for A1. Dim corners or people on the move call for one size bigger. Those distances follow the ISO 3864-1 distance-factor method (25 mm of height per metre) and sit alongside your risk assessment, not in place of it. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.

What will people understand when they see a Caution Risk of Explosion Sign?

Its job is to flag up a hazard: "Caution Risk of Explosion" is laid out as a warning sign, built around a black-edged yellow triangle. The picture is W002 from ISO 7010 (explosive material), which gets the point across to visitors who read little or no English. Those colours and shapes come from the 1996 Safety Signs and Signals Regulations, which is why they look familiar.

Could the total go up after I reach the checkout?

The only thing that can join the goods price is delivery; the price you see is the price you pay at checkout. Delivery anywhere on the UK mainland is £7.95 an order, and it costs nothing once the goods come to £100 or more after any discount code (design and artwork fees are not counted). If you pick a paid design option, it sits in the basket as a separate line with its own fee, so every penny is listed before you pay. Before delivery, this sign costs from £5.02. Nothing is printed ahead of time: each sign is made to order for you. For reference, Caution Risk of Explosion Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).

We are kitting out a hall with several different signs. Can they all go in one order?

Yes. Put each sign in the basket with whichever size and board suits its spot, then pay once at checkout. One delivery charge covers the whole order, and it drops to nothing when the goods reach £100 after any discount code. Picking the same board for every sign gives the set a matching look; "Caution Risk of Explosion" comes in A4, A3, A2 and A1. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.

Can a private person buy a single sign?

Yes. One is enough, and you do not need a business name or an account to check out. The opening price is £5.02, and any bank card will do. On its own the opening price of £5.02 would add £7.95 for mainland delivery; reach £100 of goods and that goes to zero. A person still checks your file before it is printed, just as for a big order. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Caution Risk of Explosion Sign starts from £5.02.

How much does an A2 (420 × 594 mm) sign cost?

From £9.33, with the cheapest settings and the Saver service. Material by material, it is 3mm Foamex at £42.91, 3mm Dibond aluminium composite at £61.17 and self-adhesive vinyl at £9.33. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Nothing is printed ahead of time: each sign is made to order for you. For reference, Caution Risk of Explosion Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).

How much for the biggest size, A1 (594 × 841 mm)?

From £15.12, with the cheapest settings and the Saver service. Material by material, it is 3mm Foamex at £63.13, 3mm Dibond aluminium composite at £88.40 and self-adhesive vinyl at £15.12. Add £7.95 for UK mainland delivery, or nothing at all once the goods reach £100. Select it on the page and swap materials, finishes and speed to watch how the figure moves. Before delivery, this sign costs from £5.02. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

I need several signs, some in different sizes. How do I buy them?

Set up the first size, type how many you need next to Add to basket, then go back and set up the next size as another line. Every price you see is for one sign, and the quantity box does the multiplying. Paying for artwork? It is charged once per line, not per item, and the option to reuse artwork from another basket item adds no second fee. For big numbers, ask on our Get a quote page. Before delivery, this sign costs from £5.02. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Caution Risk of Explosion Sign starts from £5.02.

I live in the Scottish Highlands. Will the Caution Risk of Explosion Sign cost more to send?

The whole UK is covered. Outside it, sadly, we cannot deliver. Mainland addresses in the Highlands pay one extra £10 on the order, even when delivery would otherwise be free. For Northern Ireland, and for the Channel Islands, the Scottish islands, Scilly, the Isle of Wight and the Isle of Man, we tell you the delivery cost before you pay, so message us your postcode on the Contact page or our Get a quote page. Choose Saver and this sign leaves us after 6 working days; Express brings that down to 2. Before delivery, this sign costs from £5.02. On this page, Caution Risk of Explosion Sign starts from £5.02.

Is there a quicker turnaround for this sign?

Work back from the day you need it. Express takes 2 working days to get the Caution Risk of Explosion Sign out, against 6 on Saver, and costs £6.68 on the opening option rather than £5.02. Add up to three working days for the courier, plus any time you need to finish the file. Cutting it fine? Put your date in the question box before you order.

Our wording is not finished yet. Can I still pay now and send it later?

Yes. Pay now and add the file afterwards: uploading after ordering is allowed, so you do not have to wait for the final version. If a volunteer, friend or designer is preparing it, they can send the finished file to you to upload, or get in touch through our Contact page quoting your order number. Nothing goes to print until the file arrives and has been checked, so if there is a date to hit, get the artwork over as soon as you can. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

How many pixels does a photo need to print well on this sign?

Roughly 7,016 pixels across and 9,933 down for an A1 (594 × 841 mm) design, which is 300 dpi. Things read at arm's length need that 300 dpi at full size to stay crisp. Text and logos are safest as vector art, which never goes fuzzy. Pictures saved from a website or social media are nearly always too small, and our file check will point out any that could print blurred. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

Can the wording on a Caution Risk of Explosion Sign be changed, or our logo added?

A school can add its crest to "Caution Risk of Explosion", a club its badge, a shop its name. Choose typesetting (£15) if you know the words, or design from your brief (£35) if you would like us to lay it out; each comes with one first draft and two rounds of changes. Have your own finished file? Upload it free and one of our team will look it over. Keep the symbol and safety colours unchanged so the sign still reads the right way. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

Will anyone look at my file before it is printed?

Every file gets a human check for size, bleed and resolution, and we contact you about any problem before printing. Nobody can know your details better than you, so double-check names, numbers and dates: we print what is supplied, and work begins once the order and file are confirmed. Make the artwork for this sign the same size as the one you order, such as A4 (210 × 297 mm). Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

What thickness is the Caution Risk of Explosion Sign, and does it feel sturdy?

The sticker version, in self-adhesive vinyl, is only a film, so it sits flush on a door or wall. Every rigid option measures 3 mm. Foamex is a lightweight PVC foam board. Dibond has aluminium on both faces around a plastic middle, so it stays flat and firm but is easy to fix. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

Does the Caution Risk of Explosion Sign come in a peel-and-stick version?

Yes: self-adhesive vinyl is one of the material choices, and that version is simply a sticker with a backing to peel off. Use it on smooth things like glass, doors, cupboards, machines or painted plaster. Clean and dry the surface first, then smooth it on working out from the middle. If the wall is rough or dusty the sticker will not grip well, so go for one of the boards. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. On this page, Caution Risk of Explosion Sign starts from £5.02.

We are putting up a full set of signs at our premises. Which ones sit well next to this one?

Two good companions for it are Corrosive Sign and Danger Acid Sign. Each has a page of its own with every size, material and a live price, and picking one material for all of them makes the wall look like a matching set. Put the lot in a single basket and you pay one delivery charge, which drops to nothing when the goods reach £100. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

Will a Caution Risk of Explosion Sign cope with rain and wind outdoors?

"Caution Risk of Explosion" can go outside as long as you match the material to the job. For a sign that stays out for years, Dibond is the one to choose. Foamex will manage a sheltered spot, such as a porch or under a canopy, but it is really an indoor board. Strong sun slowly fades any print, so glance at outdoor signs every so often and swap any that have become hard to read. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

What is the easiest way to put up a Caution Risk of Explosion Sign?

It depends what "Caution Risk of Explosion" is going on. Brick or plaster: screws through holes near the corners, washers under the heads, and a light hand (Foamex especially). Painted doors and smooth walls inside: foam tape or sticky pads, no drilling needed. Fences and railings: two or four holes, then cable ties. Glass and glossy panels: the vinyl version, pressed on after a wipe and a dry. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

Which material is cheapest for the Caution Risk of Explosion Sign?

Taking the smallest size, A4 (210 × 297 mm), as the example: self-adhesive vinyl at £5.02, 3mm Dibond aluminium composite at £40.79 and 3mm Foamex at £27.79. Larger sizes follow a similar pattern, and the full grid sits in the size table further up the page. Think about where it is going first: a cheap material in the wrong spot can end up costing more. Before delivery, this sign costs from £5.02. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

Do we legally have to display a Caution Risk of Explosion Sign?

Not in every case. The Health and Safety (Safety Signs and Signals) Regulations 1996 require employers to put up safety signs where a risk is left over once other controls are in place. So whether you need "Caution Risk of Explosion" on display, and where it goes, comes out of your own risk assessment. A sign adds to other safety measures and never takes their place. The symbol on this sign follows ISO 7010, reference W002.

Can I swap my file once I have paid?

It depends on timing. Until production begins, a new file can replace the old one, or the order can be cancelled with a full refund; once it has begun, nothing can be changed. Message us straight away on the Contact page with your order number. Items printed exactly as supplied or designed do not count as faulty, so check names, numbers and dates first. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Nothing is printed ahead of time: each sign is made to order for you. On this page, Caution Risk of Explosion Sign starts from £5.02.

I am not sure which options to pick for this sign. Can someone advise me?

Of course. Tell us three things: where this sign will go, whether it is for one day or for years, and your deadline. Send that through the question box on this page or the Contact page, and a member of the team will suggest options. If what you need is outside the options listed, the Get a quote page lets you describe it and get a price. Nothing is printed ahead of time: each sign is made to order for you. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

We need a few different designs. Do they each need their own order?

One checkout covers the lot. Add a basket line for every design, attach the right file to each, then pay once. You pay a single delivery charge of £7.95 for the whole order, or nothing if the goods add up to £100 or more. Repeating one design on another line? Choose the artwork choice that points to a file already in the basket, and no second design fee is charged. Before delivery, this sign costs from £5.02. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

Next year we will want the same sign again. Is reordering easy?

Yes. Treat it as a fresh order of the same item with the same settings, and attach the file you used last time. Keep a copy of the print file in a shared folder so whoever orders next year can find it. Change any details that have moved on, such as a new email address or this year's date, before uploading. Nothing is printed ahead of time: each sign is made to order for you. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On this page, Caution Risk of Explosion Sign starts from £5.02.

Do I have to register before I can buy?

No. Guest checkout is fine, and card payments go through Stripe, so a debit card or a credit card both work. If you choose to open an account while checking out, My Account keeps your past orders. Guest or not, you get an email confirming the order and another with tracking once it is sent. Before delivery, this sign costs from £5.02. Nothing is printed ahead of time: each sign is made to order for you. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

I have never ordered printing before. Do I need to know the technical words?

No. A person on our team checks every file for size, bleed and resolution and tells you in plain words if anything needs changing. Or pick typesetting for £15 and we lay out your words and logo for you, with a first draft and two rounds of changes. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Make the artwork for this sign the same size as the one you order, such as A4 (210 × 297 mm). Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

Some of our visitors have poor eyesight. Will this sign be easy for them to read?

Good contrast, a simple bold typeface and the right size for the reading distance make the biggest difference. Our standard safety designs already use the high-contrast colour combinations set out for safety signs. Put it at eye level in good light, away from reflections, and use as few words as possible. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

Can the Caution Risk of Explosion Sign carry wording in two languages, for example English and Welsh?

A community centre or a surgery often wants every visitor to understand a notice, and this sign can do that. Tick typesetting for £15, then give us your wording in each language, already translated, since translation is not something we do. You get one first draft and two rounds of changes. Keep the same symbol and sign colours so nobody misreads it. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. On its opening option, Caution Risk of Explosion Sign leaves us after 6 working days on Saver.

Does a Caution Risk of Explosion Sign come upright or wide?

Portrait. "Caution Risk of Explosion" is offered in A4, A3, A2 and A1. That shape is made for doors, posts and slim wall spaces. If your spot needs the opposite, pick one of the paid design options and we re-lay it to suit. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all.

What if A1 (594 × 841 mm) is still too small for the Caution Risk of Explosion Sign?

The size list tops out at A1 (594 × 841 mm), starting at £15.12. Anything bigger is priced on request: send the size, the material and how many through our quote form. A board over A0 counts as oversize for delivery, which adds £15 to the order once. Sizes for this sign go from A4 (210 × 297 mm) at the small end to A1 (594 × 841 mm), 4 in all. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

The spot gets full sun all afternoon. Could this sign warp in the heat?

It depends on the board. Foamex is foamed plastic, and a large, thin sheet in strong sun can curve, most of all when it is held only at the corners. Dibond sandwiches a core between aluminium skins and stays flat, which is why people choose it for signs that live outdoors for years. If you go with Foamex, fix it flat to a wall along its length or pick a thicker option. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Nothing is printed ahead of time: each sign is made to order for you. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

Will the Caution Risk of Explosion Sign cope with steam and splashes in a kitchen or toilet block?

Dibond copes best: it stays rigid, will not soak up water and a wipe gets it clean. The vinyl sticker holds on tiles or stainless steel as long as you apply it to a clean, dry surface. For cleaning, a damp cloth and a drop of mild detergent is enough; keep bleach and scouring products away from it. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Before delivery, this sign costs from £5.02. For reference, Caution Risk of Explosion Sign is listed in 4 sizes, the smallest being A4 (210 × 297 mm).

Could the Caution Risk of Explosion Sign go on a door, say an office or classroom door?

It can, and the vinyl sticker version is the tidiest way to do it on a door or a glass panel. On a flat door, the 3mm Foamex board with foam tape on the back is a good alternative. Aim for eye height, either beside the door or on the side people push, so an open door does not hide it. Fire doors are different: ask the person responsible for the building before you drill into one. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex. Material choices for Caution Risk of Explosion Sign: 3mm Foamex, 3mm Dibond aluminium composite or self-adhesive vinyl.

What is the safest way to clean this sign?

For "Caution Risk of Explosion", warm water with a drop of washing-up liquid and a soft cloth, then rinse and dry. Avoid solvents, scouring pads and harsh cleaning products, as they can dull the print or lift it. Keep any spare boards lying flat to stop them bowing. For this sign, the material can be self-adhesive vinyl, 3mm Dibond aluminium composite or 3mm Foamex.

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