Composite Envisions
Applied Vehicle Technology
Aircraft Spruce
I've looked into the sites to find "teflon peel ply"
I'm not seeing any.
Teflon is generally used a quick release material. It makes prepping flat tool surfaces faster than using release agents. Far less hazardous too.
Teflon tape can even be used for obscure shaped tools to make funky parts.
Dacron peel ply cures into the layup to either to protect the parts surface or pull off for an easier prep to bond.
Perforated film acts like teflon to provide a controlled epoxy flow into bleeder without the bleeder getting stuck. It is a real good idea to do, in layers:
Release agent (if using a tool)
Layup (composites)
Peel ply
Perforated film
Peel ply ( so the breather doesn't stick through the perforated holes. Trust me on this(!!!) Picking bleeder out of a lay up sucks)
Breather
Vacuum bag (or in this case saran wrap)
His layup more than likely had too much resin and the saran wrap being pulled tight was squeezed into the blob line. A vacuum bag with the right pleats and vacuum port setup would have pulled the bag more evenly. With the right perf all of his excess resin would have flowed out into the bleeder.
I'm with binder design. DA that sucker down close, flat table sand or block it down then either resin wipe or apply a super thin FG layer or peel ply layer.
Looking forward to seeing the results.
I stand corrected. I see "teflon 'coated' peel ply" that is used for the same purpose as other peel ply. The description of it states it is easier to pull off though.