POLYALK EP — Polymer Bonding Agent for Concrete & Plaster | Sunanda Speciality Coatings (20 kg)

Here's a problem that plays out on construction and repair sites across India every day — a fresh plaster coat goes on, looks fine for a few weeks, then starts showing cracks and hollow patches where it's pulled away from the concrete behind it. Or a repair mortar applied over a damaged concrete surface fails within a monsoon cycle. The common thread in both situations is the same: nothing was done to help the new material actually bond to the old surface. POLYALK EP from Sunanda Speciality Coatings is the polymer bonding agent that addresses this directly — and it's what contractors and applicators who understand concrete repair reach for before any fresh material goes on.

As an epoxy-modified polymer bonding agent, POLYALK EP creates the critical adhesion bridge between old and new concrete, between concrete substrates and fresh plaster, and between structural surfaces and repair mortars. Applied as a slurry coat onto the prepared surface before application, it chemically activates the substrate and gives the incoming material something to grip — turning what would have been a weak mechanical contact into a strong, durable bond. Used as an additive directly in cement mortars and cementitious waterproofing mixes, it improves the flexibility and cohesion of the mix itself from the inside.

The applications are wide — concrete crack repair bonding, plaster adhesion on smooth concrete surfaces, repair mortar bonding on damaged or deteriorated structural elements, floor screed bonding, and polymer-modified waterproofing slurry preparation. Any situation where new cementitious material needs to stick reliably to an existing surface is a situation where POLYALK EP belongs in the process.

Sunanda Speciality Coatings is one of India's established names in the construction chemical space — and POLYALK EP reflects that — a straightforward, genuinely useful bonding solution that does exactly what it promises, without overcomplicating the job for the people doing it on site.