Technical, Techniques, Hints, and Tips > GRP & Epoxy
Fibre glass cloth
Paragon:
Hi , can anyone please tell me the finest grade on fibre glass cloth you can get ?
I’m wanting to cover a wooden hull I’m making using cloth and Z epoxy finish .
Thanks
John
SailorGreg:
Well, Easy Composites http://www.easycomposites.co.uk/#!/fabric-and-reinforcement/glass-fibre-reinforcement/woven-glass-fabric do a 25 gsm cloth which is about as fine as you could want. I use 100 gsm which is fine for a wooden boat hull, so take your pick. I have never used the 25 gsm but suspect it needs careful handling to avoid getting it in a mess.
Greg
inertia:
I'd agree. I've used 25gsm and it's a pig to handle, especially if you have any small specks of resin or glue still on your hands. They can - and will - grab at the weave of the cloth and open it up, and that's practically impossible to fix. This will also happen if you attempt to pull the cloth in any one direction, as opposed to lifting it carefully and re-positioning it. My most recent hull uses 54gsm cloth (Deluxe Materials) and that was a revelation. It is much easier to handle, takes up the resin just as well and produces a fine surface with less effort. BTW I also use Z-Poxy Finishing Resin with 10% isopropyl alcohol as thinners.
Hope this helps.
DM
jarvo:
Hi Paragon, i totally agree with SailorGreg, easycomposites are a great company to deal with, their website is very helpful, and they do mail order, also with Inertia i agree the 25g cloth is very difficult to work with, i use the 75g cloth without problem, not used Z-poxy i use easycompsite epoxy with AT30 catalyst, look at Deluxe site as well they also have how to video's
Mark
Subculture:
The finest I've used is 18g/m, available from hobbyking. That is extremely thin, but you can get lighter. I use it primarily on aeroplanes, but I did use it on a small fast electric boat in replacement of a dope and tissue finish which had seen better days.
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