Valpaint Pre-Sealer for AR60 & AR70 Topcoats
Essential Substrate Pore-Filler for Microcement & Resin Systems
Prepare your microcement and structural resin coatings for ultimate protection with Valpaint Otturapori OTB Pre-Sealer. Specially formulated for the Valpaint i-Beton and i-Beton PLUS systems, this advanced pore-filling pre-sealer penetrates deep into porous mineral surfaces to equalize suction and seal micro-voids prior to applying protective topcoats.
By preventing uneven absorption, Otturapori OTB ensures a flawless, bubble-free application of final polyurethane topcoats like Top Coat AR60 Lucido or AR70 Opaco. It is a mandatory preparation step for establishing a completely watertight barrier on microcement floors, countertops, and walk-in shower walls.
Key Benefits of Valpaint Pre-Sealer for AR60 & AR70 Topcoats
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Pore-Sealing Technology: Fills microscopic surface pores to eliminate pinholes and uneven suction in microcement bases.
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Optimizes Topcoat Adhesion & Finish: Guarantees uniform coverage and superior bonding for final AR60 and AR70 polyurethane sealers.
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Essential for Wet Areas: Stabilizes porous resin mortars to construct a 100% waterproof barrier in showers and high-humidity rooms.
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Eco-Friendly & Low-VOC: Water-based composition offers low odor and safe indoor application with fast drying times.
Application Specifications
💡 Pro Tip: Mix thoroughly with its catalyst (CT45) as directed, then roll a thin, even coat over your cured Meteore 14 mortar. Allow it to dry for a full 24 hours and sand lightly with 220–300 grit paper before applying your final AR60 or AR70 protective sealers.
