Peel Ply
Contents
General Description
A layer of 2.7 oz. Dacron fabric strips or tape laminated into a layup as if it were an extra ply of glass. The peel coat wets out with epoxy like glass cloth and cures along with the rest of the layup. However, the Dacron does not adhere structurally to the glass and when peeled away it leaves a surface ready for glass-to-glass bonding without sanding.
Velocity Use
Peel-ply is technically optional, but it is very advisable. First and foremost, it tends to pull excess epoxy resin out of a lay-up, making the final assembly lighter for the same strength. Secondarily, it makes the lay-up immediately ready for additional lay-ups without further preparation/sanding. Finally, it makes the lay-up much tidier and helps it lay down flat and orderly, avoiding the infamous "fishhook" or "meathook" phenomena. This is where the edges of a lay-up (typically BID) start to fray and curl as you lay them out, then during cure some of the them always curl up, ready to grab the first suspecting finger to come by to check on the lay-up.
Packaging Weights
Aircraft Spruce sells flox in 1 and 5 lbs bags.
Directions for Use
Mix with target epoxy to desired thickness, then apply to prepared surface.
Safety and Handling
Do not inhale.