Seeking best insulating "fluff", fill, batting, whatever

Jul 02, 2007 5 Replies

I was a looking for a source of "fluff"--something I could stuff into small gaps--with the best possible thermal insulating value. I'm not sewing, I'm constructing something, but I figured this might be a good place to ask. What is the most insulating fiber fill commonly available, and where can I get it? It doesn't need to be waterproof. Fiberglass is rather nasty to work with, and may not be the most insulating fiber anyway--it's good in buildings because it won't burn or rot.


There is an expandable foam you can get in aerosol cans. It might be just what you need. Check your hardware or building supply outlet.

My suggestion would be to buy wool quilt batting and shred it by hand and stuff it into whatever. You didn't give us a lot of info, so this may be entirely inappropriate for what you need....

Leslie & The Furbabies in MO.

Well, I am going to be taking this thing apart and putting it back together, so spray-in sticky foams are out. The wool batting you suggest would probably work. What is the stuff that goes into sleeping bags and big, puffy coats? I believe some people sew their own or make custom ones. They must get the insulating fill from somewhere.

Paul, what you are doing and what the end use is would help determine exactly what you need. What info you have given us is very general and not specific enough, for me at least, to give you much in the way of suggestions. A lot of sleeping bags and coats and such have down or feather-down blends for insulation. One of the warmest and lightest weight fillers around. But not something you would be able to use for everything. If you want wind resistance, you need something different than if you are simply interested in warmth. Needing to fill in spaces so that "it" looks full and doesn't have dimples and divots might need something entirely different. If whatever it is is going to be used, displayed, ?? around flame/ direct heat sources/ in freezing temps and so on could add other considerations to a recommendation. As would knowing if this is a garment, structure, weight bearing, decorative, or ??????

Too many unknown variables to make a suggestion.

Pati, > >

Polyfill stuffing, available in the average craft store for filling dolls and toys. No idea if this is the best insulation around, since insulation is not its primary function. But it is very puffy, easy to handle (if you aren't sewing it), inexpensive and certainly warm. Not fireproof though -it will melt into hard black plastic pellets if exposed to flame. Roberta in D

"Paul Ciszek" schrieb im Newsbeitrag news:f6c5fp$env$ snipped-for-privacy@reader2.panix.com...

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