Siloxa-Tek® 8510 Concrete Sealer

The highest-performing and longest lasting, breathable, deep-penetrating, clear-drying, water, salt and oil repellent concrete sealer comprised of 100%* actives.

  • Coverage Up to 300 square feet
  • Coats 2
  • VOC Content 100 g/L
  • Finish Natural
  • Warranty 100 Year Warranty
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Siloxa-Tek 8510 is the deepest penetrating, highest performing and longest lasting concrete sealer in the Siloxa-Tek line. Comprised of 100%* actives it is able to resist water instrusion, deicing salts, chlorides, freeze-thaw cycles and staining from oils and greases. This proprietary {silane/siloxane} concrete sealer contains a proprietary stain repellent additive and dries completely clear with a natural finish that will not change the look or appearance of the susbtrate. It is an excellent choice to seal concrete driveways, garages, shop floors, patios, warehouses, parking lots, highways and bridges.


Exceptional when used for:
  • Applications: Commercial, industrial & retail concrete floors and slabs. Stadiums, plazas, food courts, parking garages, machine shops. Also used for exterior concrete driveways, garages and patios.
  • Substrates: Concrete, concrete blocks/cinderblocks, brick, pavers, exposed aggregate, stucco, stone, slate, sandstone
  • For enhanced performance on horizontal surfaces use a densifying primer, wait 7 days and then apply the Siloxa-Tek 8510.



  • Staining protection
  • Oil resistance
  • Water beading effect
  • Excellent penetration
  • Breathable substrate
  • Easy application
  • No appearance change


  • Deicing salt/chloride damage
  • Freeze-thaw damage
  • Spalling/pitting/cracking
  • Mold/mildew growth
  • Efflorescence
  • Dirt pick up
  • Water vapor transmission
  • Staining from oils


  • Stains
  • Oil/fluids
  • ASR/Alkali attacks
  • Water ingress
  • Moisture intrusion
  • UV radiation

Siloxa-Tek 8510 Rises Above

Siloxa-Tek 8510 meets or exceeds the following tests:

  • ASTM E-96: Water Vapor Transmission
  • ASTM E-514: Water Penetration
  • ASTM C-672: Scaling Resistance
  • AASHTO T-259: Chloride Ion Penetration
  • NCHRP 244 II/IV: WVT, Chloride Intrusion
  • OHD L-34: Depth of Penetration

Water Vapor Transmission & Chloride Intrusion Percentage Improvement vs. Control

Siloxa-Tek® 8510
Sealer Product

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Product Comparisons

Uses Concrete, Masonry, Brick, Stone Concrete, Masonry, Brick, Stone
Chemistry Modified Silane/Siloxane Modified Silane/Siloxane
Carrier Solvent Water-Based
Finish Natural Natural
Color Clear Clear
Application Method Roller Sprayer, Roller
VOC Content 300 g/L 90 g/L