Not tried it yet for blasting but old mattress foam is what I use to plug engine cavities and it works great. Tear off or cut about 3 times the size for a tight compressed fit
I have an old Honda CT90 engine I'm wanting to blast. It looks like it had some sort of clear coat or something from before. If I dont clear over it, will it have an easier tendency to oxidize or get dirty faster? Thank you.
