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SILASTIC™ RTV-4250-S Base and Curing Agent

High strength silicone rubber suited for prototyping, production tooling, artistic and renovation applications. Recommended for use with polyesters, cement and rigid polyurethanes also can be used with plaster.

Uses:

  • SILASTIC™ RTV-4250-S Kit Green is a high strength for detailed reproduction of surfaces and objects for prototype design and production tooling, as well as artistic and renovation applications. Its low durometer also makes it ideal for pad print applications

Benefits:

  • Outstanding release properties
  • If required the product cure can be heat accelerated
  • Fast thick section cure at room temperature
  • Medium hardness
  • High inhibition resistance
  • High tear resistance
  • Very high elasticity, for easy removal of complex replica parts
  • Very low shrinkage and good dimensional stability
  • Can be used for high temperature casting applications
  • Can be made thixotropic (non-flowable) for vertical surface replication
  • Fast RTV cure, very fast cure with even, low heat
  • Very low viscosity for easy mixing and de-airing
  • Fast, RTV cure
  • Low durometer hardness

Properties

These values are not intended for use in preparing specifications.

Physical Properties

  • Color Yes No Green
  • Durometer - Shore A Yes No 26 Shore A
  • Elongation Yes No 900 %
  • Mixing Viscosity Yes No 12800 Centipoise
  • Specific Gravity @ 25°C Yes No 1.12
  • Tear Strength Yes No 140 ppi
  • Tensile Strength Yes No 1000 psi
  • Type Yes No Kit

Application Benefits

  • High Tear Yes No true

Processing-Formulating Benefits

  • Approximate De-mold Time Yes No 7 hrs
  • Cure Type Yes No Addition Cure
  • Number of Parts Yes No Two
  • Working Time Yes No 45 Minutes

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

No Food Contact Letters are available online for this material
Please Contact Dow for additional information.

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SILASTIC™ RTV-4250-S Base and Curing Agent
No Technical Data Sheets are available online for this material.
Please Contact Dow for additional information.

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SILASTIC™ RTV-4250-S Base and Curing Agent
Please Contact Dow for distribution options available for this product.