APPENDIX 3 OTHER PROPERTIES OF NON-METALS* Chemical resistance Material Organic Acids Alkalis Max useful Solvents Weak Strong Weak Strong temp.(C) Acetal X X 00 × × 90 Acrylic Varies × ×-0 × + 90 Nylon 66 × + 00 + + 150 Polycarbonate Varies X 0 ×-0 00 120 Polyethylene LD X ×-00 + 90 Polyhethylene HD × X ×-0 × 120 Polypropylene X × ×-0 + 150 Polystyrene Varies X ×-0 + X 95 PTFE + + × 240 PVC Varies × ×-0 x × 80 Epoxy × × x 0 430 Melamine X 4 00 0 100-200 Phenolic X ×-0 0-00 0-00 00 200 Polyester/glass ×-0 0 00 0 00 250 Silicone ×-0 ×-0 00 0-00 00 180 Urea ×-0 ×-0 00 0-00 00 90 Resistant,0-Slightly attacked,00 markedly attacked "Data taken from Design Engineering Handbook on Plastics.(Product Journals Ltd) 536APPENDIX 3 Material Acetal Acrylic Nylon 66 Polycarbonate Polyethylene LD Polyhethylene HD Polypropylene Polystyrene PTFE PVC EPOXY Melamine Phenolic Pol yestedglass Silicone Urea OTHER PROPERTIES OF NON-METALS* Chemical resistance Organic Acids Alkalis Max useful Solvents Weak Strong Weak Strong temp. (C) X X 00 X X 90 Varies X x -0 X X 90 X X 00 X X 150 Varies X 0 x -0 00 1 20 X X X -00 X X 90 X X x -0 X X 1 20 X X x -0 X X 150 Varies X x -0 X X 95 X X X X X 240 Varies X x -0 X X 80 X X X X 0 430 X X 00 X 0 100-200 X x-0 0-00 0-00 00 200 x -0 0 00 0 00 250 x -0 x -0 00 0-00 00 180 x -0 x -0 00 0-00 00 90 x - Resistant, 0 - Slightly attacked, 00 - markedly attacked I 1 *Data taken from Design Engineering Handbook on Plastics. (Product Journals Ltd) 536