I was going to comment on the nice sewing Chuck but see you mention/likely have a serger. I think the specialized serge machine is needed to do the edges in that fashion. Prices are I think $200.00 on up. Kurt
Nomex
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It is my wife. I can't sew or serge with diddly.
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I think I read somewhere on Vern Knowles site that he used 6oz nomex? Anyway, the 6oz that I've been using is holding up just fine (your fabric #13). The oldest one that I have has a little over 3 dozen ejections on it, and washes clean every time.
sl98
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I bought a yard of Fabric #3, which is listed as 60% Nomex and 40% cotton. I also bought a yard of
PEWTER GREY NOMEX ® ARAMID KEVLAR ® FR 8OZ.TWILL FABRIC 61"W FIRE RETARDANT DWR The grey fabric is listed as 100% Nomex/Kevlar.
I made a couple of blankets with serged edges and button holes did a quick test with 1cc of BP. I also placed some scraps of 1.9 oz ripstop inside both to simulate a parachute. The charge well was about 1/2 to 1 inch away from the blanket.
Both fabrics had discoloration but no burning that I could detect.
Surprisingly, the grey fabric allowed soot/hot gasses through the blanket and the ripstop was discolored. I did not see any melting of the ripstop.
Fabric #3 did not allow for discoloration of the ripstop.
PEWTER GREY NOMEX ® ARAMID KEVLAR ® FR 8OZ.TWILL FABRIC 61"W FIRE RETARDANT DWR The grey fabric is listed as 100% Nomex/Kevlar.
I made a couple of blankets with serged edges and button holes did a quick test with 1cc of BP. I also placed some scraps of 1.9 oz ripstop inside both to simulate a parachute. The charge well was about 1/2 to 1 inch away from the blanket.
Both fabrics had discoloration but no burning that I could detect.
Surprisingly, the grey fabric allowed soot/hot gasses through the blanket and the ripstop was discolored. I did not see any melting of the ripstop.
Fabric #3 did not allow for discoloration of the ripstop.
I received another fabric to test. Mixture of wool and nomex. Wool is naturally fire resistant. We will see how the mixture fares.
mrichhcirm
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Chuck, have you tried wool felt or fabric? I'm wondering how effective a chute protector cut from an old pair of wool pants or a P-coat from the thrift store would work.
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Hrmm, wool's stiff enough I wonder about a chute cup / squishy piston. Kevlar below, nylon above, would also likely have anti zipper properties.
I don't have the fabric test. I will keep an eye open.
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