Harbor freight sells them too…
I used a hot wire foam tool to get that texture. Super easy to do.
Just keep slicing out small curved chunks of foam.
You end up with a pile of them lol. I always use the hot wire tool outside due to the fumes.
This is the tool I used;
Jeff
in the past, I have used a product called FoamCoat. It is made specifically to protect foam from solvents. Years ago I got contracted to sculpt a 12’ tall cartoon character from giant blocks of white foam and that is what I used. I was able to fiberglass the outer shell over the FoamCoat.
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thx. Added to my cnc wishlist on amazon.