Any idea if this is downproof?

[Jtupnsmoke]

I just picked up 25 yards of 1.1 Coyote ripstop from magnafabrics. Anybody know if this will work for making down quilts? I didn't even think to check before purchasing. as I planned on using it for hammocks, but I will not use all 25 yards.

http://store.magnafabrics.com/30_Den...25_a_Yard.html

[gmcttr]

It's a poor choice for use with down. It is a pure finish nylon but it needs to be a calendered finish to prevent leakage.

[Jtupnsmoke]

It's a poor choice for use with down. It is a pure finish nylon but it needs to be a calendered finish to prevent leakage.

Thanks, I figured as much but wanted to double check with some of you more experienced folks.

[Ben Guss]

How does one with if a fabric is calendered?

It's a poor choice for use with down. It is a pure finish nylon but it needs to be a calendered finish to prevent leakage.

[boulderv7]

How does one with if a fabric is calendered?

In this case it says pure finish, indicating it had not been calendared. Usually though, if it is not indicated, a calendared fabric will have a shiny side.

[sr1355]

How does one with if a fabric is calendered?

Typically a visual indicator is shiny one side but that is no guarantee of downproof or calender finish. Besides calender thread count and weave come into play as well. A low thread count even calendered will have poor performance with high FP down.