They are the Store bought versions of Peanut Butter. They Cost more than what it would cost if you make your own. Bondo Glass is Resin with cabosil and 1/4" Chopped Stand fibers and Bondo Hair is Resin with Cabosil and 1" CSM fibers. Both have the consistency of Creamy Peanut Butter. Used for filling gaps and gouges.quick question what is bondo glass and bondo hair
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