KreteTek Ghostshield Siloxa-Tek 8500 Concrete Water Repellent and Sealer

Quick ID: Q663


In Stock

Usually Leaves Warehouse Same/Next Business Day

ShippingShips for $8.95 or Free with $99 Order


  • Industrial grade silane/siloxane blend
  • For concrete blocks, cinderblocks, driveways, sidewalks, parking lots, roof tiles, and exposed aggregate concrete
  • Department of Transportation approved
  • Freeze-thaw/de-icing salt resistant
  • Makes oil and grease easier to remove from treated surfaces decreasing maintenance
  • Protection against micro-organism growth; Reduces dirt pick-up
  • Hydrophobic barrier prevents future penetration of water and soluble aggressive agents through a crack
  • UV Resistant; Low VOCs
  • Coverage: Ready to use, up to 250 sq ft per coat, 2 coats required
  • Note: New concrete must be cured 28 days


KreteTek Ghostshield Siloxa-Tek 8500 is an advanced, high performance, industrial strength water based concrete/masonry water repellent solution that is designed to reduce water and moisture intrusion. Approved by the Department of Transportation, protecting a wide variety of mineral substrates including architectural concrete, concrete block, splitface block, pavers, stucco, porous and dense brick, clay tile, exposed aggregate concrete, sandstone, and slate, KreteTek's unique formula incorporates leading molecular nanotechnology; putting an end to water and moisture migration through any porous cementitious substrate. KreteTek Ghostsheild Siloxa-Tek 8500 is an uniquely transparent, blended formula with added enzymes and surfactants that aide in accelerating a penetrating disbursement. Thus eliciting a more effective, uniformed chemical reaction between KreteTek's formula and the concrete / masonry substrate it's being applied to. Surpassing anything else on the market the Siloxa-Tek 8500 provides a hydrophobic barrier beneath the surface and seals out moisture while remaining highly vapor permeable and chemically bonding with the substrate. The treated surfaces will show no change in visual appearance from application and the surface that will not chip, flake, delaminate or breakdown with UV light exposure.

KreteTek Ghostshield Siloxa-Tek 8500 meets or exceeds the following industry standards:

ASTM E514: Standard Test Method for Water Penetration and Leakage Through Masonry ASTM C672: Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemicals NCHRP 244: (86.75, 81.88, 85.00) DOT: Department of Transportation Approved EPA: Contributes to USGBC LEED Points Note: Cannot ship to HI or AK


Manufacturer Part Number8500
Sub BrandGhostshield
ApplicationSprayer, Roller
BaseWater Based Silane/Siloxane Water Repellent
CertificationsDepartment of Transportation approved
Clean UpSoap/Water
Coverage (Square Feet)250/gallon
FinishNatural, water will bead. Water beading effect will increase over time
Installation Temperature45-90 Degrees F
Package Quantity1
Recommended Use2 Coats
V.O.C90 g/L
Warranty100 Year

Weights and Dimensions

Weight (Pounds)10


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