Album: http://imgur.com/a/IClpC
So far, I have tested the secondary bonding product for pre-preg (250 SB) along with their infusion grade 150 RF.
The 150RF says it replaces peelply, release film, and mesh. I’m NOT sure about the peelply part. The finish seems more smooth than peelply normally is. I have not done any peel tests on either product yet.
However, having to not cut several layers of stuff, I love it. I did use peelply to cover the spirals for the resin inlet and vent for the infusion product, AND used peelply as a brake, because this material has flow media on it, so I rather keep a brake zone in there in case. I might have been able to cover the entire part with the 150RF, but I wanted to see the difference between the materials.
Infusion:
6-8 layers of 5,9oz plain weave carbon.
API SC-15 resin for infusion
For the 250 SB and prepreg:
Added a few layer patch with insert onto existing part, ignore the pink epoxy that was left behind.
Cut 250SB 1/4" oversize, and taped on 4 corners, covered in breather, and bagged. Simple as that.
Net-resin prepreg, so very little bleed. Peeled off easily, nothing left on part. Looks like tons of dots of resin on the 250SB, so i guess they use a membrane or something.
Prepreg:
4 layers of 6-8oz VTM462 (or 465…264? whatever) Epoxy resin.
Materials from Mark Kirk, CCT at Composites One