SCS9000 SilPruf* NB

SCS9000 SilPruf* NB weatherproofing sealant is a premium one-component, medium modulus, neutral cure silicone sealant useful on a wide variety of materials in new or remedial applications. SCS9000 SilPruf* NB is a 100% silicone polymer sealant formulated to reduce or eliminate dirt-pickup, surface streaking, and substrate staining. SCS9000 SilPruf* NB is supplied as a paste and upon cure produces a durable, formed-in-place silicone rubber joint sealant.

Download Brochure SCS9000 SilPruf* NB



  • Silicone Durability – Cured silicone rubber exhibits excellent long term resistance to natural weathering
  • Premium Aesthetic Performance – Offers a cleaner silicone option when sealing visible building joints
  • Versatile Adhesion – Attains strong bonds to many substrates and finishes without the need for primers or surface conditioners
  • Advanced Technology – Derived from time-proven neutral cure chemistry of GE Silicones Silpruf SCS2000 product
  • Adhesion – Primerless adhesion to many substrates and finishes
  • Movement Capacity – Can accommodate 50% movement in both extension and compression and has excellent recovery after cycling
  • Low VOC content
  • Matte Finish – Non-glossy surface appearance
  • Extended Work Life – Designed to allow the user have sufficient time for installation and tooling
  • Stable Consistency (uncured state) – The paste can be easily gunned and tooled under hot and cold conditions
  • Thermal Stability (cured state) – Once cured, the material remains flexible over a range of -48°F to 121°C and up to 177°C under intermittent short term exposure
  • Low Sag or Slump – Useful for application to horizontal, vertical, or overhead surfaces
  • Packaging – 600 ml sausage

Basic Uses

  • Ideal for use on natural stones when staining from migration is undesired
  • Ideal for use on facade elements where the appearance of a clean facade is desired
  • Useful as a weatherproofing material when sealing between dissimilar or similar materials in either new or remedial glazing and sealing applications
  • Useful as a weatherproofing sealant on window perimeters and punched opening

Tech Spec

Typical properties – Supplied

Consistency  : Paste
Polymer  : 100% silicone
VOC  : 37 g/l
Tooling time  : 30-40 min
Tack free time  : 3-4 hours
Sag/slump  : max 0.1 inch

Typical properties – Cured

Hardness, durometer (Type A Indentor)  : 27
Ultimate tensile strength  : 244 psi
Ultimate elongation  : 629%
Tear strength  : 30.8 ppi
Peel strength  : 36.8 pli
Joint movement capability  : ±50%
Staining (masonry)  : none
Service temperature range  : -48°C to 121°C
Weathering and UV resistance  : Excellent
Cure time  : 2-3 days
Full cure  : 10-14 days


White, black, limestone, light grey, aluminum grey, dark grey, precast white, bronze

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