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Concrete Silicone 2® Sealant

10.1 oz
 
Image of GE Advanced Silicone Concrete Sealant in Light Gray, 100% waterproof and mold-free with a lifetime guarantee.
Image of instructions for preparing a GE silicone sealant cartridge with steps for cutting the nozzle and puncturing the seal.
Image of light gray silicone concrete caulk being applied between bricks, with product details visible.
  • 100% silicone
  • 100% waterproof & weatherproof
  • 10-year mold-free product protection†
  • Permanently flexible
  • Resists UV degradation
  • 30-minute rain-ready†
  • Shrink & crack-proof
  • Excellent for application on concrete, mortar & stone
  • Adheres to porous materials & wet or dry surfaces
  • Lifetime guarantee†
  • Non-paintable

†See Product Disclaimers page for important details


Concrete Silicone 2 sealant is a high-performance, 100% silicone and 100% waterproof sealant ideal for concrete, mortar and stone projects. This 30-minute rain-ready formula is light gray in color and offers permanent flexibility and excellent durability with 10-year mold-free product protection to help resist mold and mildew growth. Backed by a lifetime guarantee.

Adheres to: brick, stone, stucco, masonry, asphalt, concrete, cement, most metals & woods, aluminum, composites, cement board, glass, ceramic & porcelain tile, drywall, plaster, vinyl siding, PVC, fiberglass & painted surfaces

For additional information, see product label.

  1. Remove dirt, grease, moisture, soap residue & old sealant from area to be sealed.  Use backer rod for gaps larger than 1/2″ x 1/2″.
  2. Cut nozzle to obtain desired bead size.
  3. PIERCE INNER FOIL SEAL.
  4. Using caulk gun, apply sealant into gap. Smooth with a gloved finger or “tool” the caulk into gap.
  5. Wipe hands & tools thoroughly before washing.
  6. Allow 30 minutes before exposing sealant to water.
View all How-To Videos

Meets Fed Spec ASTM C-920, Type-S, NS, Class 25, Use NT, M, G, A & O test requirements
Fed Spec TT-S-00230C; TT-S-001543A

disclosures -needs logic

For products produced by Henkel Corporation, please use the UPC Code. You can click on the corresponding UPC code below to access the SDS.. 

Color UPC Code
Light Gray 28756956693
Image of GE Advanced Silicone Concrete Sealant in Light Gray, 100% waterproof and mold-free with a lifetime guarantee.
Concrete Silicone 2® Sealant		Image of GE Silicone Gutter sealant, clear and 100% waterproof for various weather conditions.
Gutter Silicone 2® Sealant		Image of a waterproof silicone metal sealant cartridge with a 30-min rain-ready feature and lifetime guarantee.
Metal Silicone 2® Sealant
Water-ready Time 30-minute30-minute30-minute
Mold-Free Product Protections 10-year10-year10-year
Joint Movement 25%25%25%
Low Odor
Will Not Blemish Most High-End Metals
Available in Squeeze Tube


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