550 Water Based Polyurethane Concrete Sealer is a protective glossy finish, two-component urethane resin. The Part A component must be thoroughly mixed into the Part B component for the material to properly cure and provide a durable, long-lasting finish. This product can be applied indoors or out to smooth concrete surfaces. Rough or broom-finished concrete are not good candidates for this sealer. Careful review of the product instructions prior to applying is a must. Glossy, no wax sealer alternative for indoor floors.
Coverage: When properly applied to a smooth concrete surface, the 1 gallon kit will cover up to 300 sq. ft. Coverage will vary with surface conditions and concrete porosity. If top-coating a previously sealed surface, the kit will cover up to 500 sq. ft. Use only water-based acrylic or epoxy sealers to prime the floor. For best results, apply sealer at temperatures between 60°F-95°F and when the relative humidity is 80% or less. The sealer itself must be above 60°F before installing.
550 Waterbased Polyurethane Mini Kits are available for smaller projects and concrete countertops.
Mixing Instructions: As a two-part system, Part A must be thoroughly mixed into Part B in order for the material to properly set up for application. Pour Part A into Part B and begin to mix with a wooden stir stick. Mix completely; fold the material over onto itself and carefully scrape the sides of the can to assure nothing is left unmixed. Whenever possible mix contents with a low speed electric drill with a paint mixing paddle attachment. The contents should thicken and become whiter as you stir. Stir for 2-4 minutes until totally combined. NEVER mix the product at a high-speed. Once mixed, the pot life for the sealer is approximately 1 hour. Working the material after the recommended time can result in streaking, whiting and an uneven finish.
Application: After the sealer has been thoroughly mixed, pour the material into a clean, dry paint tray. Use a piece of tape to “de-fuzz” the roller prior to application. Saturate a de-fuzzed 3/8” nap roller with sealer. Apply a thin, milky uniform coat of sealer to the entire surface. Avoid overworking the sealer as it can lead to air entrapment which can cause foaming on the surface. If applying with an HVLP sprayer, spray on in even coats until the surface is saturated and allow to dry. If a second coat should be deemed necessary, apply within 24 hours of the first coat or wet-sand the surface with a 120-grit pad prior application to ensure good adhesion. Please our How-to Apply Guide for complete instructions.
550 Water Based Polyurethane Concrete Sealer can be cleaned prior to cure with isopropyl alcohol and can only be removed from fully-cured concrete surfaces using Soy Gel Paint and Sealer Stripper or by mechanical means, such as grinding or sanding. Leftover product, brushes, paint trays, or roller covers should be responsibly discarded after use.
Key 550 Water Based Polyurethane Concrete Sealer Features:
- • Water-based, Low Odor Highly Durable Polyurethane Coating
• Apply using either applicator or an HVLP sprayer
• No wax required sealer alternative for indoor floors
• Can be applied with a water-based acrylic prime coat indoors for increased coverage area
• VOC compliant everywhere but California
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