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Ghostshield: Siloxa-Tek 8510

Regular price $119.88 Sale

Siloxa-Tek® 8510 is an advanced, high performance, industrial strength concrete/masonry water and oil repellent solution designed to reduce water and moisture intrusion. This unique formula incorporates leading molecular nanotechnology; putting an end to water, oils, fluids and moisture migration through any porous cementitious substrate. Siloxa-Tek® 8510 is a uniquely transparent, blended formula with added enzymes and surfactants that aide in accelerating a penetrating disbursement. Thus eliciting a more effective, uniformed reaction between the formula and the concrete / masonry substrate it’s being applied to. Siloxa-Tek® 8510 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. Natural Finish.


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 and garages.
  • 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


      • 1 gallon
      • 5 gallon
      • 55 gallon 

      Tech Data

      Application Instructions


      Customer Reviews

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      • How much does 5 gallons cover in terms of square footage? My garage is 2,450 square feet

        5 Gallons covers 1500 sqft single coat, or 750 sqft with two coats

      • I wanted to seal the pool deck and patio around a saltwater pool. Do you suggest 8510 or 8505?

        I would suggest the 8510

      • can you paint after you seal the concrete with 8510

        The sealer will resist letting the paint adhere to the concrete so i would suggest against it.

      • can you apply after you have painted the new concrete

        No,  the paint will prevent the 8510 from penetrating in to the concrete.

      • When will 1 gallon containers of 8510 be available ?

        It's available now! Click the drop down on the product page.

      • What is shipping time to 98040?

        Should be 3-5 business days.

      • How long do you wait to apply after concrete is poured? How long to dry in between coats and when can you drive on it ?

        28 days after the concrete is poured,  you can apply.  

        The coats are wet on wet,  so 5 to 10 minutes. 

        You can drive on it 24 hours after application

      • Which is water based. 8505 or 8510?

        8505 is water based

      • What’s the coldest temperature in which it can be applied

        35 degrees Fahrenheit during application and must stay above freezing for minimum of 8 hours after application

      • Just had drive way out in last month. Has not been sealed with anything yet. Are more than one coat needed?

        Manufacturer recommends 2 coats

      • I have a new driveway with broom finish. The contractor sealed it with Diamond Clear, and suggested a recoat in the spring (7 months between initial and recoat) My driveway is a work space for oil changes and other activites. Could I go over the diamond clear with ghost shield so long as the surface is not beading water? Or do I have to strip off the diamond clear?

        Your best bet would be to strip the diamond clear off to ensure a good surface for the Ghostshield

      • I used another siloxane coating about 2yrs ago ..can I put the 8510 over that??

        Does water still bead up on the surface?  If so,  the 8510 won't penetrate.

      • Our concrete driveway was sealed with Rustoleum Rock Solid Lacquer 3 years ago. It is not a good sealer. Can I seal our driveway with Siloxa 8510 over the Rustoleum sealer if I wash the driveway? Thank you.

        I would not suggest trying to seal over the rustoleum surface sealer with a penetrating sealer.  You need a completely bare surface so the 8510 can penetrate.

      • I have 635 sq ft concrete patio 280 sq ft of concrete pavers. I live in coastal SC and trying to figure out how many gls, best product to use for diy. Sections of pAtio and pavers are on the north side so I do get the algae on areas.

        This product gets about 300 square feet per gallon, single coat.  Two coats are recommended.  You would be slightly over 6 gallons for two coats

      • is the 8500 concentrate the same product minus the water as the 8510

        8505 is the closest to 8510 with the difference being water based vs. solvent based.

      • How many square footage does this cover

        About 300 sqft per gallon, for one coat.

      • Is 8510 good for sealing interior walls of an outdoor, decorative fountain (in Arizona)?

        Yes.  This is probably the best option on the market for sealing fountains.

      • En que colores llega siloxa tek 8510

        This is a penetrating sealer so it cures clear, no color.

      • Is this product okay to use to seal a fountain to keep the concrete pot from leaking? Is this product safe for animals if they drink from the fountain after it has been treated and rise completely and the fountain is filled with water?

        Absolutely. This is probably one of the best options for a fountain!  No concerns with animals as it will not flake off etc.

      • How often would this need to be reapplied to a horizontal surface?

        Recommended to be reapplied every 10 years

      • #1- Do you sell concentrated Ghostshield Siloxa TEK 8500? Price? #2- What is the best densifying primer for new concrete driveway before applying. Your price?

        Yes, we do.

        For primer , I would suggest Lithi-tek 4500.  This is a densifier hardener and is used as a primer for the 8500.

      • how foot cover per 5 gal container

        Up to 300 sqft per gallon

      • What stores sell Siloxa trek 8510?

        Many stores sell Siloxa-Tek however most do not stock it, and charge shipping.  All purchases over $80 on our site qualify for free shipping!

      • whats the shelf life?

        Approximately 3 years in unopened container

      • After you clean oil from concrete and give it time to dry, will this product seal the concrete and resist the oil?

        Yes, this is the best option for oil resistant sealer. 

      • Stupid question but why the different bucket container? Same product as the silver handle container right? Thanks Todd.

        The silver handle containers are for 1 gal.  The buckets would be for 5gal only.

      • You recommend a densifying agentbut I don’t see this product bring sold here. What is a densifying agent anyway

        The densifier is Lithi-Tek 4500. It basically makes the surface of the concrete more dense for a better surface. It also acts as a primer for the 8510.

      • Can I add color to siloxatec 8510 and, if possible, where can I get it?

        Unfortunately no.  It is a penetrating sealer, so the color wont penetrate in to the concrete with the sealer.

      • We floodcoated our concrete driveway in 2017 with 8510. It’s time for a reapplication. Do we need as much as the first time or will it take less product?

        Should take less,  but how much less is a guess. I would test a small area and see how much absorbs.