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The industrial sealants and adhesives made with Risun DS series polymer are no bubbles, no yellowing, no isocyanate groups, with longer shelf life, better weathering resistance and more eco-friendly than PU sealants. If you want to produce high quality industrial sealants and adhesives, Risun DS series polymer is your best choice.     Mol.wt    Based on 10000 - 15000 MW polyether    End    Dimethoxy & Triethoxy capped    Polymer Viscosity    19000 - 22000 Mpa.s at 25℃    Catalyst    Catalyzed with dibutyl tin diketonoate and secondary amino silane    Hardness    Shore A 40-65    Tensile Strength    3.4-6.0 Mpa.s    Elongation    150%-300%    Specific Gravity    1.005    CAS No.    1497417-11-4
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