XS-327 is a water based polyurethane sealer designed for application over concrete surfaces like concrete countertops, cement based terrazzo, and fiber reinforced concrete. XS-327 surpasses the abrasion resistance of most solvent-based sealers, while providing the safety of a non-flammable, low VOC water based concrete sealer. XS-327 meets the most stringent of VOC regulations at just 25 g/L. XS-327 becomes food safe upon curing.
Mix for 3 minutes using a paddle attachment on a cordless drill.
Let the mix set for 5-7 minutes.
Add 7 parts water to 1 part catalyzed XS-327 and mechanically mix again for 1-2 minutes.
Let it sit for 1-2 minutes or until all foam or bubbles are gone.
Step 2 – Prime Coat
Pour the sealer on the countertop.
Use a roller to apply it to the edges first.
Roll it on the surface, pushing the foam off the edge.
Continue rolling with light pressure.
Switch to a dry roller if necessary (to soak up extra sealer).
Keep rolling until any small bubbles in the surface are gone. Keep moisture in the roller and use less pressure until you’re happy with the surface.
Drying Time: Varies due to temperature, humidity, surface texture, and percentage of water reduction. A six hour time frame or longer may be required before the first coat dries sufficiently for a second coat.
Step 3 – Second Coat
If the second coat is applied 48 hours after the first coat, scuff the surface for proper bonding.
A full cure is achieved between 5-7 days at 75°F.
Step 4 – Cleanup and Disposal
Cleanup: Before XS-327 dries, clean up spills and over-spray with soap and water.
Disposal: Contact your local government household hazardous waste coordinator for information on disposal of unused product.