what type? for what use? there are many types kasi. meron fiberglass foam, polyethylene foam, styropor, spray foam insulation, polyurethane foam, etc etc etc....
Am gonna use it for my cars door panels, I installed an aftermarket audio system, and when a strong midbass hits my panel vibrates... Dynamat, and other brands like it are my last option since am expecting it to be more expensive than foam insulation. I'll keep my options open tho
wurth has a product just like the dynamat but it looks like an asphalt type compound and is available in sheets of varying thickness. but i don't know how much it sells for...
i also have a friend who sells specialty foams for tech applications.
pm me na lang if you want to get his contact number.
meron sa true value yung mga ganyang foam insulation. may nabibili ata yung may sticky side na, or is it may rugby lang kasama pag binili mo. hehe.
or flashband din gamit nung iba.