Epoxy Waterproofing India — permanent protection for concrete.

Bondone Silcrete is the best epoxy for waterproofing in India. It's a 2-component system with a 2:1 mix ratio and 40-50 minute pot life that bonds molecularly with concrete — unlike surface coatings that peel off within 2-3 monsoons. One 7.5 kg kit at ₹3,658 covers ~75-90 sq ft and lasts 10-15 years. Available pan-India from Si Epoxy Adhesives.

Epoxy waterproofing uses a two-component epoxy resin system that, when mixed and applied to concrete, penetrates the surface pores and cures into an impermeable, monolithic barrier. Unlike surface coatings that sit on top, epoxy bonds into the concrete itself — eliminating the gap where water normally seeps through. Bondone Silcrete is specifically formulated for this purpose with a 2:1 mix ratio and 40-50 minute pot life at 25°C.

Traditional methods — brickbat coba, bitumen sheets, cementitious coatings — all rely on a physical layer sitting on top of the concrete. Over time, thermal expansion, structural movement, and water pressure create gaps and cracks at the interface. Epoxy waterproofing bonds chemically with the concrete substrate, becoming structurally integrated. No interface gap means no water migration. The trade-off: epoxy requires proper surface preparation and cannot be applied to damp concrete.

Bondone Silcrete is the correct product for terrace waterproofing. It's a 2-component epoxy system designed for concrete protection against water ingress, chemical exposure, and UV degradation. Do not use Bondone Flowtop for terrace waterproofing — Flowtop is a self-levelling industrial flooring epoxy meant for interior warehouse and showroom floors. I've made this mistake myself (cost me ₹15,000), so trust me on this one.

Yes — but only after proper surface preparation. The existing surface coating (paint, old waterproofing, laitance) must be removed entirely via grinding or shot-blasting to expose bare, sound concrete. Any active leaks must be stopped and the concrete allowed to dry to below 5% moisture content. Silcrete needs a clean, dry, profiled surface to bond properly. Applying it over old failed waterproofing is throwing money away.

When applied correctly on a properly prepared surface, Bondone Silcrete waterproofing lasts 10-15 years under normal Indian weather conditions. I have installations in Ghaziabad and Noida that are 6+ years old with zero issues. Factors that reduce lifespan: poor surface prep, application on damp concrete, UV exposure without topcoat in extreme sunlight regions, and mechanical damage from heavy objects on the terrace.

Material cost for Bondone Silcrete works out to approximately ₹40-48 per sq ft at 400-micron thickness (one 7.5 kg kit covers ~75-90 sq ft at ₹3,658). Total project cost including surface preparation, primer, application labour, and Silcrete typically ranges from ₹85-150 per sq ft depending on surface condition, accessibility, and location. By contrast, replacing a water-damaged concrete slab costs ₹500-800 per sq ft — making epoxy waterproofing far more economical long-term.

Yes, but with an important caveat: Silcrete can be applied to interior basement walls to create a negative-side waterproof barrier — but only when the wall is dry at the time of application. If the basement is actively seeping, you must first stop the ingress (injection grouting or exterior excavation), allow walls to dry, then apply Silcrete. Applying epoxy to a wet, actively seeping wall will result in complete failure. I've seen contractors try it — it's ugly and expensive to fix.

Yes. Always. Bondone recommends a compatible epoxy primer applied to the prepared concrete surface before the Silcrete waterproofing coat. The primer seals the concrete pores, improves adhesion, and prevents outgassing bubbles in the waterproofing layer. Skipping the primer saves ₹800-1,200 but risks delamination — not a trade-off worth making.

Regular epoxy floor paint is a thin-film coating (typically 80-150 microns) designed for aesthetics and light traffic on dry interior floors. Silcrete is a high-build waterproofing system (300-400+ microns) formulated for continuous water exposure, UV resistance, and chemical protection. Floor paint fails on terraces because it can't handle ponding water or thermal cycling. Silcrete is built for exactly those conditions. Different chemistry, different application, different result.

Order directly from us — Si Epoxy Adhesives is an authorised Bondone distributor since 2016. WhatsApp me at +91 8595955752 with your project details (area in sq ft, location, application type), and I'll confirm the quantity, pricing, and delivery timeline. We ship PAN India via DTDC and Blue Dart. UPI and bank transfer accepted. Real warehouse, real stock — no dropshipping, no delays.