GRP And Appropiate Adhesives Caution Advised

[Ben Dockrell 22]

Caution in the case innppropiate adhesives which i gather could react by giving off toxic fumes ?


Does an adhesive have to be styrene based as i have read to use with GRP ?


May i ask what you used ? what were your experiences ?

 

[vyv_cox]

This is a bit too cryptic for me. What are you trying to do?

At various times I have stuck things to grp using epoxies, polyesters, polyurethanes, solvent based contact adhesives, polymer hybrids, polysulphides and probably many others. No toxic fumes as far as I am aware and certainly no warnings with any of them.

 

[sarabande]

Ben

Make a search for the product or name you want to use, e.g. styrene, and add the letters MSDS after it.

That will give you a full list of what you should be aware of while using or disposing of your product.

e.g.

http://www.resin-supplies.co.uk/HSDS pdfs/Gripfill HSDS.pdf

http://www.sciencelab.com/msds.php?msdsId=9925112

 

[oldsaltoz]

Caution in the case inappropriate adhesives which i gather could react by giving off toxic fumes ?


Does an adhesive have to be styrene based as i have read to use with GRP ?

I have used Sikaflex 11FC under CSM and poly resins for many years and no effect or warnings that I have seen or heard off.

Poly resins will react to some substances, anything with a tar base will prevent it going off and leave you with a sticky mess.

I add CSM strips to Sika BE, it's a waterproofing based on bitumen emulsion, the CSM (no resin added) helps to strengthen the wall to footing seal joint.

Good luck and fair winds.

 

[VicS]

Caution in the case innppropiate adhesives which i gather could react by giving off toxic fumes ?


Does an adhesive have to be styrene based as i have read to use with GRP ?


May i ask what you used ? what were your experiences ?

You should regard anything containing volatile organic copounds as potentially hazardous not only from a health point of view but also due to flamability.

In particular note that contact adhesives may contain xylene. The vapour from such an adhesive can be deadly and it should only be used in an area well ventilated and preferably while wearing an "organic vapours" mask.

Styrene vapour from polyester GRP resin is also extremely toxic.

Both are highly flammable.

As suggested you should consult the Material Safety Data Sheet (MSDS) for any material you may be using.

The official document EH40 sets out maximum allowable exposure limits for the workplace .

Styene based polyester resin is not a particularly good adhesive. Neither to cured GRP or other substrates ( eg wood). Epoxy adhesives are generally better. Modern polyurethane adhesives may also be suitable .

Tell us you you are doing and someone will be able to give you some relevant advice.

 

[Ben Dockrell 22]

This is a bit too cryptic for me. What are you trying to do?

At various times I have stuck things to grp using epoxies, polyesters, polyurethanes, solvent based contact adhesives, polymer hybrids, polysulphides and probably many others. No toxic fumes as far as I am aware and certainly no warnings with any of them.

Hello Vyv

Im sorry you have waited this long to get a reply, i saw the replies earlier on in the day with every intention of at least saying thank-you though once i got a few things done the mental note i had made earlier had gone walkabout.

I must say i found it difficult to agree with you on the compatibility of a number of these products though again i do thank-you for your well intentioned help

 

[Ben Dockrell 22]

Ben

Make a search for the product or name you want to use, e.g. styrene, and add the letters MSDS after it.

That will give you a full list of what you should be aware of while using or disposing of your product.

e.g.

http://www.resin-supplies.co.uk/HSDS pdfs/Gripfill HSDS.pdf

http://www.sciencelab.com/msds.php?msdsId=9925112

Hello Sarabande


As with Vyv i do apologise for the long wait for a reply, just effortlessly went out of my head like someone stealing the tyres off a three wheeler in toxteth!


Yes of course you are right i do need to check the data sheets, i thank-you very much

 

[Ben Dockrell 22]

You should regard anything containing volatile organic copounds as potentially hazardous not only from a health point of view but also due to flamability.

In particular note that contact adhesives may contain xylene. The vapour from such an adhesive can be deadly and it should only be used in an area well ventilated and preferably while wearing an "organic vapours" mask.

Styrene vapour from polyester GRP resin is also extremely toxic.

Both are highly flammable.

As suggested you should consult the Material Safety Data Sheet (MSDS) for any material you may be using.

The official document EH40 sets out maximum allowable exposure limits for the workplace .

Styene based polyester resin is not a particularly good adhesive. Neither to cured GRP or other substrates ( eg wood). Epoxy adhesives are generally better. Modern polyurethane adhesives may also be suitable .

Tell us you you are doing and someone will be able to give you some relevant advice.

Your a very reliable source of techinical information of all things boaty VicS and im grateful that you are,as with Vyv and Sarabande i do apologise for the long and unintentional wait for a reply though again i much appreciate your advice thank-you

 

[vyv_cox]

I must say i found it difficult to agree with you on the compatibility of a number of these products though again i do thank-you for your well intentioned help

Ah, but I have done it. Not once but many times, with no ill effects. You have acquired some information from somewhere and have answered your own question without listening to the voice of experience. Every one of the adhesives and sealants I posted is used in professional production of GRP boats.

 

[Bobobolinsky]

As Vic points out, Styrene is a bit toxic, but when using any adhesive that gives off vapours, you should take precautions, the chief of these being

1 Use as little as possible

2 Keep ventilated. If in a boat hull, it tends to collect heavy vapours, which may be toxic or flammable or both. On the hard, you can remove seacocks, which allows the heavy vapours to "pour away"

Paints and coatings are far more problematic as they contain much higher percentages of VOCs. Even white spirit is toxic to some extent and industrial thinners are mostly Xylene. We use toxic chemicals all the time in boatbuilding and fitting.

Beware of your "friends" in the yard, someone's taking the wee wee

 

[PCUK]

Never heard of this before. You must be using some very dangerous and obscure adhesive!