Good evening lads!

Wats the best way to stop fibreglass sticking to stuff i don't want it to? like a mould etc.

For example, like a fender light 'bucket' for a brand new certain tailight i want to install, but want to use the light itself as a mould without the fibreglass glass sticking to it?

thanks

Chris.

The standard product to use is PVA glue. It is water based and will not stick to steel or fibreglass. Then with a wash of water it is all gone.

A coating of Carnuba wax before putting the PVA on makes it even easier.

Three coats of PVA allowing them to dry will be very safe.

Brown packing tape for simple shapes is an easy way.

Cellotape also works. It is used when needing to make panels that screw together. You can fibreglass onto one panel and have cellotape on the other so it doesn't stick. Now that I have written this I realise that you are wanting to use a light bucket so the best bet is using releas wax. Polish it on and off just like car polish. When fibreglassers do a prep a new mould they will put on up to 8 coats. It still needs a bit off work to release, but if the bucket is tappered down to the rear a few squeezes might do it. If not use the plastic strips that you get in yellow tounge flooring.( Builders usually have some left overs onsite.) You slide them in between the plug and the mould to help release them.

do glass fiber suppliers sell supplies for carbon fiber?

There is a guy in Bayswater that does. Long way from Kyneton though.

cool. that stuff shits all over fiberglass

I got to play with some F1 chassis and body parts when I was in Swiss. Absolutely amazing properties and ideal for a possible application in mind for my notch.

Excellent stuff

Thanks guys, that should certainly keep me busy and out of trouble now. much appreciated!! Time to get glassing...

cant go passed ptfe spray.
otherwise called Teflon.
used this in our moulds when making aircraft parts.

no probs.