Just to clarify I believe the OP is talking about milled fiberglass (typically pieces of 1/32" or less). Fiberglass 1/4" to 1/2" doesn't ball up. Only issue with matting is carbon fiber strands (even those as short as 1/8" are a problem). The milled fiberglass will increase the viscosity a little bit--only a minor issue and often desired.I agree, you just want a pinch, otherwise you end up with something like the worst furball your cat ever hacked up. Carbon pulp or chopped fiberglass AIDS strength, but makes it harder to get a smooth fillet. If you want something that adds strength and finished off nicely silica, like West Systems, works well. I just learned about the 406 from a post by John Coker the other day here on TRF. I always used 404, I think.
[emoji1010] Steve Shannon [emoji1010]
If it is milled fiberglass, I just add until it is the viscosity I want. I often add a tablespoon or more to the usual West/Aeropoxy pump system volume. If it is fiber you are cutting yourself, that makes for some pretty lumpy epoxy.Hi peeps
Please can someone tell me the correct ratio for adding milled fibre to epoxy (for fillets) ?