I saw on Horsepower TV a show where this audio guy built a custom enclosure for a speaker.


Okay just noticed this, the can says "fiberglass resin"



In this picture he has stretched something they called "mold fabric" that only stretches one way, and then they are covering it with resin.



He cuts out the top that he didn't cover with the resin which leaves the custom speaker enclosure.


You can see the finished speaker enclosures.

I guess what I'd like to know is any particular fiberglass resin, and what is "mold cloth"?