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    MasterSeal HY 495 - Hybrid ultra-high performance, façade and structural sealant

    What is MasterSeal HY 495?

    MasterSeal HY 495 is a high-grade, hybrid Silane-terminated polyurethane compound one component moisture curing, low-modulus sealant and adhesive.

    What is MasterSeal HY 495 recommended for?

    MasterSeal HY 495 is a hybrid sealant specially developed for sealing of all types of external or internal facade joints. Expansion joints - Construction joints - Joints in precast elements – External walling and cladding joints - Infill panel joints - Curtain walling – Window and door frame sealing - Bridge and balcony parapets - Retaining walls – Subways - Reservoirs and water retaining structures.

    Which are MasterSeal HY 495 main benefits?

    • Free from isocyanates and silicones
    • Excellent adhesion to most building substrates
    • Highly resistance to ageing and weathering
    • Strong, permanently elastic, durable seal
    • Excellent adhesion, without primer to most surfaces
    • Odorless, UV, water, and fungal growth resistant


    MasterSeal HY 495_TDS

    pdf (272.88 Kb)

    MasterSeal Systems Engineered sealing and weatherproofing solutions

    pdf (5.39 Mb)


    Oman: +968/24435800
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