Thanks Doug, appreciate your input, apparently washing only works with the woven gf, not with the matting felt type or chopped.
Stay safe and well shipmate, we are just plodding on here with our health issues.
I can't model at present as my hands aren't gripping as too painful with arthritis.
But trying to keep up with what's going on in the boat modelling world.
Having a video consultation with my consultant rheumatologist on Tuesday next so hopefully I'll know how to get back my mobility then.
Cheers Colin.

One lives and learns Colin,
Many thanks for that info 👍
All the Best to the 'Two Cs'
Cheers, Doug 😎

Good evening all, after calling my friend at work today he explained the process to me.
The fg they use is on very large rolls weighing 1ton.
It comes off the passing over a grille with hot water and mild detergent spraying over it.
Then passing over a second grille with clean hot water spraying over it.
Then passing through a heated (75 centigrade) tunnel with fans removing all the moisture, apparently that's most important.
From here it passes over a large cutting table with hydraulic dies that cut the required size and shape to suit whatever they are making.
Then into the laminating room where it is formed and bonded with polyester resin.
Hope that this explains it for those interested.
Basically he said that washing your fg will remove any unwanted surface contamination, and please ensure that all moisture is removed prior to use.
Cheers Colin.

Heard of this before!
Found out here in SA also. Ask the supplier many questions

I believe that it was aid that soaking the cloth in water would release the sizing, but I will check. Also if it is allowed and not politically incorrect, I'll happily post a link to that thread.

I'll ring him tomorrow at work and ask.
Cheers Colin.

Hi Colin, did he say what he cleans it with and how is the cleaning process carried out?

That's very interesting, I personally haven't had this issue, but have just spoken to an ex workmate who works for a local fg moulding production company and he says that they always clean their cloth before use as it's a common problem.
Cheers Colin.