Dr. Fixit Feviseal HY 100 Hybrid Polymer Sealant for Expansion Joints (600 ml * 20 pcs)

Picking a joint sealant usually means a trade-off. Polyurethane gives you toughness and movement but can be fussy about damp surfaces and primers, while silicone handles weather and UV but won't take paint and can stain the substrate around it. Dr. Fixit Feviseal HY 100 from Pidilite gets past that, because it's a hybrid sealant that carries the strengths of both in one cartridge.

It's a single-component, moisture-curing silyl-modified polymer, isocyanate and solvent free, so it's low odour and cleaner to work with than a standard PU. It bonds to most construction substrates without a primer, takes damp surfaces in its stride, and cures without bubbling. Once cured it stays highly elastic for joint movement, resists UV and aggressive atmospheres, and doesn't stain the surrounding surface the way some silicones do.

That makes it a wide-use joint sealant for expansion, control and construction joints, between precast concrete panels, at concrete-to-metal transitions, and on tile, brick and marble joints in high-rise, basement and flooring work. It comes in grey, holds its seal through movement cycles, and can be overpainted with water-based paint where the joint needs to match the finish.

For joints that need polyurethane toughness and silicone durability without the downsides of either, Dr. Fixit Feviseal HY 100 is the hybrid sealant that bonds, flexes and weathers in one.