SL&C DIY Poly hybrid products have no isocyanates, no VOC. Part C Poly Powder in most DIY packages is made of high quality bedliner solids and is safe for all applications using only basic respiratory protection. In dealership grade or big job pure polyurea products applied through high pressure or fusion-like systems, within parts A and B, one of them must be isocyanate which is considered moderately toxic. For any pure polyurea, any brand, there is no other alternative. Therefore, for any two parts pure polyurea including our cartridge based products, full respirator suit and/or paint booth are advised.