PC-260 is a two-component, solvent-free, elastomeric polyurethane base membrane designed for both interior and exterior use. It functions as a flexible, high-performance base coat for waterproofing, mechanical room flooring, and traffic deck systems. It's suitable for surfaces such as concrete, plywood, and metal.

• Base Membrane: PC-260
• Primer (if recoat delay > 48 hrs): Polyprime U
• Top Coats (not listed in this TDS but typically required in systems): To be determined from complementary Polycoat topcoats, as PC-260 itself is not UV-stable
• Aggregates:
• Dry rounded sand (16 or 20 mesh) for slip resistance: 20 lbs/100 sqft
• Rubber granules (14–30 mesh): up to 20 lbs/100 sqft

• Crack repairs and expansion joints
• Interior/exterior pedestrian traffic surfaces (walkways, patios, stairways)
• Mechanical rooms and floors
• Kennel runs, stalls, and wash racks
• Sundecks and balconies
• Vehicular traffic areas

• Mixing Ratio: 4 parts Side-A to 1 part Side-B
• Mixing Instructions: Mechanically mix Side-A and Side-B separately, then combine and mix thoroughly without vertical motion.
• Application Tools: Squeegee or notched trowel preferred; phenolic roller may be used with care
• Broadcast Options: Sand or rubber aggregates can be added into the wet second coat for texture
• Pot Life/Gel Time: Begins to gel in 20–30 minutes
• Recoating Window: 2–4 hours between coats at 75°F (24°C) and 50% RH. If more than 48 hours pass, re-prime with Polyprime U
• Curing Time: Tack-free in 4–6 hours; varies with environment
• Coverage Rate: 1 gallon per 100 sqft
• Film Thickness: 15 ± 1 mils dry film per coat
• Installation Temperature: Minimum 20°F (-6°C)
• Viscosity: Side-A: 2500–3000 cps; Side-B: 100 cps

• PC-260 is not UV stable and should be topcoated with a UV-resistant finish for exterior use
• Not suitable for split slabs, buried membranes, sandwich slabs, magnesite, or non-structural lightweight concrete
• Acceptable over on-grade slabs if vapor transmission test is passed
• Moisture sensitive in clear coats—may appear cloudy in humid conditions
• Surface must be clean, dry, and contaminant-free
• Must not be diluted under any circumstances
• Shelf Life: 1 year in original sealed containers at 60–95°F