1 gal. Invisible Penetrating Concrete Sealer, Waterproofer Plus Densifier


Concrete Waterproofers & Foundation Coatings

An industrial-grade, water-based, proprietary sealer designed to densify, strengthen and waterproof concrete: increasing abrasion resistance while reducing moisture and vapor intrusion. Lithi-Tek 9500 is the industries most innovative product. A proprietary blend of chemistries, this clear penetrating sealer not only densifies and hardens concrete making it up to 50% stronger, but its hydrophobic nature resists moisture intrusion and vapor transmission making it the go to choice to seal basements and driveways.

  • Concentrated: 1 gal. makes 5 gal. and covers up to 1000 sq. ft. 2 coats are recommended
  • Resists water and moisture intrusion, becomes an integral part of the concrete, forming a complete body of strength and durability with 100% of the results occurring below the surface, penetrates deeply and seals concretes capillary tracts and shrinkage cracks reducing the growth of mold and mildew and the spread of radon
  • Effectively resists hydrostatic pressure and the spread of vapor transmission, increases concrete's compressive strength, combats Alkali Silica Reaction (ASR), efflorescence attacks are reduced
  • Seals hairline and shrinkage cracks rather than merely masking or bridging them, waterproofing properties remain intact even if the surface is damaged
  • Dries clear, the color and look of the concrete will not change after sealing resulting in 100% transparent surface, easy to apply, labor-cost effective, nontoxic, no VOC's and no harmful fumes
  • Not intended to be used on cinderblocks/concrete blocks or bricks, use the Siloxa-Tek 8500. Not intended to be used on polished concrete or extremely smooth concrete surfaces that have not been acid etched or mechanically scarified. Not intended to be used as a substitution for a concrete vapor barrier or foundation membrane below grade (can be used in conjunction with a concrete membrane).
  • Online price includes PaintCare fee in the following states: CA, CO, CT, ME, MN, OR, RI, VT
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Container Size
1 GA-Gallon


Application Method
Brush,Paint Sprayer,Roller
Coating Product Category
Clear, Natural, Slightly Enhanced
Concrete/Masonry Surface Application
Basement Floor,Basement Wall,Driveway,Exterior Wall,Garage Floor,Garage Wall
Dry To Touch Time (hh:mm)
Maximum Optimal Temperature (F)
Maximum hydrostatic pressure (lb.)
Minimum Optimal Temperature (F)
Paint/Stain Base Material
Paint/Stain Key Features
Dries Clear,Mildew Resistant,Moisture Resistant,UV/Fade Resistant,Waterproof
Paint/Stain/Waterproofer Product Type
Concrete Waterproofer/Sealer
Recommended Number of Coats
Substrate/Surface Use Type
Vertical / Horizontal

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