Frequently Asked Questions

When should a polymer-modified cementitious floor topping such as MC-Floor 13 be specified instead of an epoxy coating or epoxy floor screed for an Indian warehouse or factory, and what are the key differences in performance, cost, and application?

Choosing between a polymer-modified cementitious floor topping (MC-Floor 13) and an epoxy floor coating or epoxy screed is one of the most common flooring specification decisions in Indian industrial construction. The two systems have fundamentally different performance characteristics and cost profiles, and neither is universally superior — the right choice depends on the specific performance requirements, substrate condition, traffic type, chemical exposure, and budget of the project. Polymer-modified cementitious floor toppings such as MC-Floor 13 are best specified in the following situations. For very large floor areas (above 2,000 to 3,000 square metres): cementitious toppings are significantly more cost-effective per square metre than epoxy coatings (approximately 30 to 60 percent lower material cost per square metre at comparable thickness), making them the standard choice for Indian warehouses and large factory floors where the entire floor area must be resurfaced. For heavy mechanical load and impact applications: cementitious toppings are more resistant to heavy point loads (concentrated wheel loads from electric forklifts with hard rubber tyres) and impact loads (dropped steel parts or pallets) than thin-film epoxy coatings, which can shatter or delaminate under high impact. Epoxy coatings are hard but brittle — they crack under the flexural deflection of concrete slabs under forklift loads, and once cracked they delaminate rapidly. A cementitious topping has sufficient thickness and flexural strength to absorb slab deflection without cracking. For applications where thermal expansion is a concern: cementitious toppings have a coefficient of thermal expansion close to that of the concrete substrate, reducing differential thermal movement and the risk of delamination at temperature extremes. Epoxy has a much higher coefficient of thermal expansion than concrete, causing debonding at the perimeter of large epoxy-coated areas in environments with significant temperature variation (cold storage, outdoor areas, and areas near process heat sources). For wet or damp substrate applications: epoxy coatings require an absolutely dry substrate (less than 4 to 5 percent moisture content by weight) — any residual construction moisture in the slab will cause epoxy to blister, debond, and fail within weeks of application. MC-Floor 13 is tolerant of damp (but not wet) substrates at the time of application, making it far more suitable for refurbishment of older slabs that retain construction moisture or suffer from rising damp. Epoxy coatings and epoxy screed systems are better specified for the following situations: chemical resistance (epoxy provides far superior resistance to acids, alkalis, oils, solvents, and aggressive chemicals compared to cementitious toppings — in battery charging rooms, chemical storage areas, and pharmaceutical facilities, epoxy or polyurethane systems are the correct choice); high-gloss and hygienic surface finish (epoxy provides an impermeable, seamless, and easy-to-clean surface for food processing and pharmaceutical areas); and thin applications (epoxy coatings can be applied at 0.3 to 3 mm thickness, making them suitable for resurfacing floors where no change in finished floor level is acceptable). For most Indian warehouse and factory floor applications in Delhi NCR — general distribution warehouses, light to medium manufacturing plants, logistics and cold chain facilities, and car parks — MC-Floor 13 offers the correct balance of abrasion resistance, durability, application practicality on large areas, and cost-effectiveness. Consult Space Arc Engineering for a site-specific recommendation based on traffic loading, chemical exposure, and budget.