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#1 Posted : 02 April 2009 11:30:00(UTC)
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Posted By KayS
Hello,
Apologies if this has been discussed before, I did a forum search but couldn't find anything. Can anyone point me in the direction of written reasons not to affix stickers or paint on Hard Hats? Ideally I need something that can't be argued with :-).

I have seen unofficial mentions of adhesives/paints compromising the integrity of the plastic hats, and also that other damage can be concealed by stickers etc. Is the manufacturer the best place to go for instructions, or might there be anything from HSE/IOSH/other well-known reputable safety organisation?
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#2 Posted : 02 April 2009 11:57:00(UTC)
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Posted By Neil R
Far as i know there aren't any issues. We've been using induction stickers on hard hats for years with no problems
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#3 Posted : 02 April 2009 12:11:00(UTC)
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Posted By Liam G
I have had this problem several times on various sites. The problem is that certain glues can affect the integrity of the hard hat and also impair the visual inspection of this type of PPE by hiding/covering defects. I know that centurion will carry out an integrity test on a hard hat if you send them the type of sticker you wish to use. Albeit that this, for me anyway, still imapirs the visual inspection for defects to ensure your PPE is in good condition. They also have a list of types of adhesives and solvent based pens etc that they have tesetd in the past. I suggest that you contact the manufacturer of your particular type of hard hat.

Soon be Friday
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#4 Posted : 02 April 2009 12:14:00(UTC)
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Posted By Coshh Assessor
The HSE guidance L25 says:

76 (g)
Do not customise head protection, eg make your own ventilation holes, paint, mark or put stickers on it.

But it doesn't seem to include a justification.
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#5 Posted : 02 April 2009 12:39:00(UTC)
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Posted By Mike Baker
L102 has this information:-
Appendix 7: Damage or deterioration to shell of suitable head protection
Appendix
Damage to shell

Damage to the shell of a helmet can occur when:

(a) objects fall onto it;
(b) it strikes against a fixed object;
(c) it is dropped or thrown.

Helmets should always be replaced when:
(a) the shell has received a severe impact;
(b) deep scratches occur, ie to a depth greater than 25% of the shell thickness;
(c) the shell has any cracks visible to the naked eye.
Deterioration in shock absorption or penetration resistance

Certain chemicals can weaken the plastic of the shell, leading to rapid deterioration in shock absorption or penetration resistance.

Chemicals which should be avoided include aggressive cleaning agents or solvent-based adhesives and paints. Where names or other markings need to be applied using adhesives, advice on how to do this safely should be sought from the helmet manufacturer.

The shell can also weaken on exposure to heat or sunlight which can make it go brittle. Head protection should therefore never be stored near a window, eg the rear window of a car.
Regards,
Mike
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#6 Posted : 02 April 2009 14:53:00(UTC)
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Posted By KayS
Thankyou all, very helpful. The problem was operatives refusing to stop decorating their helmets, often with paint, which as well as being detrimental to the helmet, also looks terrible. We are checking that our logo sticker adhesive is OK with the manufacturer and are then going to ban all other unapproved decoration.

Thanks again.
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#7 Posted : 02 April 2009 16:56:00(UTC)
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Posted By stephen d clarke
Hi,
As I understand it you can get stickers that are compatible with the hard hat plastic. But in general stickers shouldn't be used because the adhesive can have quite a marked effect on the plastic, reducing its strength causing it to embrittle and/or shortening its usable life. Any effect might not be clearly visible to the naked eye but when the hard hat is physically stressed e.g. something hits it, it fails at a lower force than its design spec. I think it might be classed under the general term environmental stress cracking.
Steve
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#8 Posted : 03 April 2009 14:20:00(UTC)
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Posted By Craig Neville
Adding stickers on to hard hats is fundamentally a fairly low risk activity.

However decorating them with paint etc... is childish and should be dealt with via the HR route not by the H&S advisor. Its on the same level as calendars in mess rooms ie. not very professional.

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#9 Posted : 03 April 2009 16:25:00(UTC)
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Posted By graeme12345
wev'e got a free HSE calender in our canteen, does that make us "professional"

whats wrong with calenders in canteens or like?
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#10 Posted : 03 April 2009 16:27:00(UTC)
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Posted By A Campbell
Not heard of a professional mess room.... especially on construction and offshore sites... where the majority would be in possession of a hard hat!
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#11 Posted : 04 April 2009 12:26:00(UTC)
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Posted By Dave Merchant
The precise effect of a sticker, paint or ink mark is very difficult to predict without testing, but it certainly does exist - adhesives, solvents and carrier fluids are all capable of depolymerising the shell, making it brittle and unsafe. They also obscure the shell from inspection, and under the PPE At Work Regs are therefore prohibited without permission of the manufacturer - adding stickers or marks *intentionally* to a helmet is "modification".

See http://www.centurionsafe...arandCareInformation.pdf for an example manufacturer statement on the issue.

I think the calendars thing was about the amount of clothing on display (or lack of it) rather than the fact it's a calendar...
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#12 Posted : 05 April 2009 00:54:00(UTC)
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Posted By Garry Mcglaid
Hi Kay,

The more i read on the forums the less competent i deem myself to be, and i worry about the career choice i have taken.

I get the fact the stickers / paints may hide defects on the hard hat, and i also fully accept the fact that markings on company attire do not transmit the correct image or corporate message, but what i struggle to see is the opinion that a sticker on the helmet, will compromise the integriy of the helmet to such an extent it should concern me safety wise.



In what instance ?

When would the Kilo Newtons of a falling object be substantially increased or decreased due to the adhesive from a sticker?

I would like to ask this question to all Health & Safety professionals

Would any Health & Safety professional refuse entry to a site, from an employee or sub-contractor due to a sticker on a helemt?

I give stickers to all staff i induct on site,and i request them to stick them on their hat!!

Call me old fashioned, but id rather know at a glance all staff on sites of upwards of 200 have recieved a good induction, rather than be concerned of the minimal effect a 20mm x 40mm adhesive sticker will cause.

But as i always say, horses for courses, onwards and upwards

Garry
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#13 Posted : 05 April 2009 07:21:00(UTC)
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Posted By Raymond Rapp
Garry

For what it worth I am with you on this one. I am miffed to see how a sticker would compromise the integrity of a hard hat. Okay, I am not an expert on plastics and adhesives, but really, is this a real hazard?

We have lots of guys on site with stickers on their hard hats. I am loathe to ask them to remove them or stop putting them on. Indeed, before I arrived I believe a sticky label was given in acknowledgement of an induction.

Ray
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#14 Posted : 05 April 2009 11:22:00(UTC)
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Posted By Alex.wilkes
In my honest opinion there are a lot more concerns to worry about than whether to place a sticker on a helmet. I would rather reduce or illiminate the hazards as far as practicable so the integrity of the helmet will not become an issue.
In my company stickers are allowed but the use of paints and marker pens are forbidden.

Alex
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#15 Posted : 05 April 2009 11:39:00(UTC)
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Posted By Dave Merchant
Gary - the point is not about the impact force altering because of the sticker, but that the chemicals in the adhesive backing can react with the shell polymer, and cause it to lose structural integrity.

Helmets are designed to be as lightweight as possible, and so tend to steer very close to the limits of the EN standard. Even a tiny loss in strength could result in a shell cracking or being penetrated, and no manufacturer will allow users to apply untested chemicals to their products. It's been an issue with bike helmets for years (given riders' prevalence for airbrushing and stickering their lids) and it's a very real effect - helmet manufacturers have tested "decorated" samples and shown damage is happening, and many have failed in crashes because of it.

If you only wear your site hat to keep the rain off, then the fact it isn't safe may not bother you - but it bothers the law. Modifying PPE is illegal, period. Argue all you want, but when the HSE inspector calls, you're stuffed.
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#16 Posted : 05 April 2009 19:08:00(UTC)
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Posted By stephen d clarke
Hi,
Agree with Dave Merchant probably because I am a chemist by profession but hard hats are made of a variety of different plastic materials including polycarbonate, acrylontitrile-butadiene-stryrene (ABS), low density polyethylene and high density polyethylene. The BS EN standards which specify their performance note that you should not apply paint, solvents, adhesives or self-adhesive labels except in accordance with manufacturers' recommendations, HSE guidance says the same. If labels are needed I think you should contact the manufacturers for advice, I guess the risk is low but its easily avoided.
Steve
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#17 Posted : 06 April 2009 09:04:00(UTC)
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Posted By Haggis JM
...not only a chemist, but used to work for a company that manufactured Hard hats!

Part of the instructions that accompanied EVERY helmet that was sold stated that stickers, marker pens or paint must not be applied to the item as these could weaken the plastic.

I did refuse to put an ICI induction sticker on my hard hat as the trainer couldn't confirm it was safe (wore it on my jacket instead!)
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#18 Posted : 06 April 2009 10:11:00(UTC)
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Posted By Garry Mcglaid
Honest answers please,

Have any of us ever refused a contractor or employee entry to a site becaues of an induction sticker on a helmet?

I do take on board the comments of my esteemed colleagues very seriously, however as stated previous, i dont believe its a hazard on site that would concern me to any great degree.

Garry
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