3M(TM) Fastbond(TM) Foam Adhesive 100NF Neutral, 5 gal box, 1 per case It is a fast setting adhesive. This neoprene-based product gives soft, non-dimpling bondlines. Bonds flexible polyurethane foam to itself and many other surfaces. Available colors: neutral and lavender. Bonds many porous substrates to porous or non-porous substrates with minimal dry time. Fast tacking to hold seams and curves within 15 seconds. Foam-tearing strength after complete setting.