SM-501 heat stabilizers (methyl tin Stabilizer) is specific for PVC slice and plate materials, and fits for PVC high-grade transparent slice, polishing slice, drug-use slice. It is low-odor and has excellent characteristics of reprocessing and all-seasons using. The kind of high efficient heat stabilizing agent can greatly reduce your productive cost. Sm-501 tin heat stabilizers provide protection during calendering, extrusion and injection molding of rigid PVC. Further tin stabilizers provide good initial color, and good long term heat stability. Quality Indicators: Appearance: clear and oiled transparent fluid Color degree: Pt-Co colorimetry<50# Gravity: 1. 17-1. 19 Tin% : >19. 2 Viscosity: <250 Application Merits: 1. Excellent initial and long-term heat stability 2. Good quality of reprocessing 3. Perfect transparentness and color 4. Low volatile and odor Package, Storage and Transported: Plastic-covered iron drum, 235Kg N. W. Per drum Non-inflammability, non-explosibility, not dangerous Stored and transported as normal goods Recommend to be stored in dry and well-ventilated warehouses kept form light and water, validtime is 2 years