RTV-2 XT-493

Category: Silicone Rubber, RTV-2 , Silicone Rubber, RTV-2
Manufacturer: Silicones, Inc.
Trademark: RTV-2
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: oV6arD_RTV-2-XT-493.pdf
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Message
XT-493 is a high tear strength, thixotropic, two-component, tin catalyzed RTV silicone rubber. It is designed for casting polyurethane, polyester and epoxy parts. XT-493 is useful for applications where a non-flowing, non-sagging rubber is needed. It is an excellent product with the following advantages over other RTV silicones.
Applications:
XT-493 is recommended for casting polyesters, polyurethanes, waxes, gypsum, concrete, epoxies and other plastics. It is useful for upright applications where little or no flow is required.
General Information
Features
  • Good Tear Strength
  • Low Flow
Uses
  • Mold Making
Forms
  • Liquid
PhysicalNominal ValueUnit
Specific Gravity
    -- 10.988g/cm³
    -- 21.10g/cm³
Shrinkage - Cured 0.10%
ThermosetNominal ValueUnitTest Method
Shelf Life 26wk
Uncured PropertiesNominal ValueUnitTest Method
Color
    -- 3Colorless
    -- 4Off White
Viscosity 50.35Pa·s
Curing Time 16 to 18hr
Pot Life 60 to 90min
Cured PropertiesNominal ValueUnitTest Method
Shore Hardness 6(Shore A)26 to 34
Tensile Strength 3.10 to 3.45MPaASTM D412
Tensile Elongation at Break 250 to 300%ASTM D412
Tear Strength 715.8 to 19.3kN/mASTM D624
Note Message
1 .Activator
2 .Base
3 .Activator
4 .Base
5 .Activator
6 .7 Days
7 .Die B
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