4oz. Part B Refill (Hardener)

This size replaces the Part B in the 12oz. Set. Our Hardener has a shelf life of about a year, if stored correctly.  It will still function well long after that for pieces that don't need to be clear (glitter, dye, DichroISH creations).  If you're working with photos, you'll want fresh, clear product, so here's a refill bottle.  Safety Data Sheet (SDS)