GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.

Post Subject: Toxic lubePosted by jessie.dazzle on: 9/16/2010

Scooter wrote:

"...I have seen silicone and other petro-based products in contact (or proximity via vapors) to cause certain foams to break down over a period of several years. They might have a similar negative impact on driver components and bonding agents..."

I have to admit, I'm sort of totally off my first proposal which involved mold release agents; I'd address the stuffing issue with an approach more like my second proposal (option II above). Much cleaner and easier to adjust.

However, Scooter is absolutely correct, especially with regard to petroleum-based products. This is why they are not used with condoms... And why Astroglide rules!

As Romy has only one day left, I was trying to come up with an easy to find release agent.

If spray can foam must be used, then why not spray it directly into several smaller plastic sacs (still mixing it with the chunks of cut up foam as previously described)... The mix will expand in the sac and take the form of the rear chamber... That way no mold release is necessary.

In cases where its absolutely necessary to use a release agent near potentially vulnerable materials, real silicone, if you can find it and pure bee's or carnauba wax would be fine (hard as hell though... Need to heat it); avoid the liquid waxes which are 75 petro-solvent (even Johnson's industrial paste floor wax has a fair amount of solvent). Though I hesitate to recommend it, a thin film of vegetable oil might also do the trick; partially hydrogenated if a paste form is desired (better known as Crisco).

There are other fancier solutions, such as liquid polyvinyl acetate, or PVA (synthetics suspended in alcohol, available at places that serve what's left of the tool and die industry).

Otherwise, there's always Astroglide!

jd*

Rerurn to Romy the Cat's Site