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Espuma Slabstock Flexible

Reliable solutions for quality, performance and innovation

Silicone additives from Dow can be used in many flexible slabstock foam applications, including:

  • Polyether and polyester slabstock foam 
  • Wide range of blowing agents systems Including carbon-dioxide and acetone
  • Wide latitude processing 
  • Low-emission surfactants 
  • Viscoelastic/slow-recovery 
  • Flame-retardant (FR) additives systems

Continuous Conventional and Viscoelastic foam

*Low performance  **Moderate performance  ***High performance   = Attribute present in product
1Product unavailable in the E.U.  2Product only available in the E.U.


Conventional box foams

Product Rectangular block Cylindrical block High filler content HCO
VORASURF™ DC 5933 Additive *** ** * **
VORASURF™ DC 5417 Additive *** *** * **
VORASURF™ DC 5906 Additive ** *** *** ***
VORASURF™ DC 5810 Additive *** *** *** **
VORASURF™ DC 5986 Additive *** *** ** *
VORASURF™ DC 5950 Additive *** *** ** ***


TDI Viscoelastic foams

Product Processing window Fine cell structure HCO Low VOC
VORASURF™ SZ 1959 Additive * *** **  
VORASURF™ SZ 1979 Additive * *** **
VORASURF™ SZ 1952 Additive * ** ***

*Low performance  **Moderate performance  ***High performance   = Attribute present in product


HR Slab foams

Product Processing window Fine cell structure HCO Bulk stabilization
VORASURF™ DC 5043 Additive *** *** *** **
VORASURF™ DC 6070 Additive *** *** ** ***

*Low performance  **Moderate performance  ***High performance


Polyester foam

VORASURF™ DC 1990 Additive
  • Surfactant for polyester flexible slabstock foam applications with low emission requirements
  • Can be used in flexible molded foam for cell-opening and for rigid foam applications
VORASURF™ TF 3607 Additive
  • Surfactant for ester slabstock foam and TDI/MDI HR molded foam systems
  • Surfactant for urethane elastomer foam and footwear (shoe sole) applications
VORASURF™ FF 5526 Additive
  • Surfactant for polyester slabstock foam

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Explore our full range of polyurethane additive solutions.