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Concrete Densifier Plus Water Repellent– SD500

A non-hazardous, premium, lithium densifier, hardener and sealer for new and existing concrete surfaces. Treated surfaces are resistant to surface abrasion/cracking while reducing dusting and simplifying maintenance

SD500 is a multi-phase penetrating lithium-colloidal based proprietary silicate treatment that reacts with concrete to produce insoluble calcium silicate hydrate that locks aggregate together and fills vacant concrete pores strengthening and hardening concrete. SD500 will not contribute to surface ASR (Alkali Silicate Reaction).

SD500’s proprietary blend of particle sizes allows it to both penetrate deep and also react with the surface pores and capillaries which is the primary line of contact as capillary pore space is filled the hardened properties of concrete are substantially improved.

Reduces application time and costs of diamond polishing, improves performance and appearance of concrete

For more information regarding this product, please download our Data Sheet & Application Guidelines.

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Application Highlights


  • New Concrete (after final finishing)
  • Existing Concrete (any age)


  • Most floors open for traffic in one hour
  • Full cure 48 hours
  • May slightly darken
  • Apply two saturation coats wet on wet
  • Safe, easy to apply


  • Indoors, outdoors
  • Horizontal and vertical


  • One-gallon bottles
  • Five-gallon pails

Regulatory Compliance: VOC Compliance; This product is compliant with the following national, state, and district AIM VOC regulations, US environmental Protection Agency, California Air Resources Board SCM Districts, South Coast Air Quality Management Districts, Maricopa County AZ, and Northeast Ozone Transport Commission