Hi Daihashi,

I've used Tyvek for an addition to a house; it is suppose to let moist air escape out of any cracks of a house so there is no moisture or condensation trapped in the insulation. But at the same time not allow air infiltration to the building. Suppose to be breathable in one direction only, thats why the directions say to put it on the house logo side out.

I think you have a brilliant idea there! (sorry to disagree with you disrupt86)

It should allow for the escaping of of the outgasses....the only difference I see is this; when we burp the jars periodically we are not just releasing the outgasses but allowing fresh air back into the jar. I don't know how important that is tho, it certainly warrants an experiment.

Thanks for sharing that idea and I'm also glad to see you back around.
oldmac Reviewed by oldmac on . Curing in Mason Jars with Tyvek? I have started another hobby that uses Tyvek. Tyvek is a plastic material that you can find everywhere. One of the most common places is Fedex. Their envelopes are made out of Tyvek. Tyvek is also a Vapor barrier used in houses and I think you can even get suits for painting or something made out of tyvek. Anyway Tyvek allows for gas exchange while at the same time keeping out contaminants that would allow conditions for mold or other things to spawn. From what I understand Tyvek does not Rating: 5