About Dr. Fixit Cipoxy 16D

Dr. Fixit Cipoxy 16D sits in Pidilite’s Industrial Flooring range, and it does one job: get the substrate ready so an epoxy, polyurethane or polyurea flooring system actually stays down. It’s an epoxy-polyamidoamine two-pack — a base resin and a hardener mixed 1:1 by volume — and it’s genuinely solvent-free, which matters on an occupied factory floor where nobody wants xylene fumes hanging around for days. At roughly 98% solids by weight, most of what goes onto the floor stays as film instead of flashing off, so the coat builds properly rather than shrinking back and pinholing the way thinned, solvent-cut primers sometimes do.

What earns it a place on Space Arc’s flooring jobs is its tolerance for damp concrete — Pidilite rates it for substrates up to 7% moisture content, a real consideration on ground-floor slabs and basements across Gurugram, Noida and Bhiwadi that rarely get the full drying window a datasheet assumes. It isn’t a wearing surface on its own — it’s always followed by the actual epoxy, PU or polyurea topcoat — and it also doubles as a bonding primer for coatings over corrugated metal roofing, a less obvious but genuinely useful second life for the same tin.

The technical insight

The “polyamidoamine” in the type description is the detail worth understanding. Standard polyamine-cured epoxies cure fast but are fussy about surface moisture and blush easily in humid conditions; polyamidoamine hardeners trade a little cure speed for much better tolerance of damp substrates and ambient humidity — which is exactly why Cipoxy 16D can be brushed onto a 7%-moisture slab without the amine blush that ruins adhesion on lesser primers. Combine that with its low-to-medium viscosity and near-total solids content, and you get a primer that penetrates rather than sits, cures to a hard glossy film within about 8 hours at 30°C, and still delivers a ≥2 MPa pull-off bond (ASTM D 7234) that typically fails in the concrete itself rather than at the coating interface.

Where it is used

• Primer/sealer under self-smoothing epoxy floor toppings in warehouses, factories and logistics parks
• Bonding coat ahead of polyurethane (PU) and polyurea resin flooring systems
• Priming coat on basement and multi-level car-park decks before an epoxy or PU deck coating
• Bonding primer under protective/waterproof coatings on corrugated metal roof sheets
• Substrate sealer before hygienic, seamless epoxy flooring in pharma and food-processing plants
• Prep coat on slightly damp ground-floor slabs where solvent-based primers would blister or delaminate
• Priming layer ahead of anti-static or chemical-resistant epoxy systems in electronics and battery-assembly units
• Sealer coat under decorative flake or quartz-broadcast epoxy flooring in showrooms and lobbies

Key advantages

• Solvent-free — negligible VOC odour on an occupied site, and no shrinkage-driven pinholing as solvent evaporates out of the film
• Bonds to concrete with moisture content up to 7%, so the schedule isn’t hostage to a bone-dry slab
• Low-to-medium viscosity genuinely penetrates the concrete pore structure instead of just sitting on the surface
• ≥98% solids content by weight means most of the applied film stays as film, giving a thicker, more dependable build
• 60-minute-plus pot life at 27°C gives applicators real working time compared with faster-curing primers
• One primer serves epoxy, PU and polyurea topcoats, so contractors aren’t stocking three different tins for one job
• Simple 1:1-by-volume mix ratio keeps on-site batching errors to a minimum
• Backed by Pidilite’s pan-India Dr. Fixit dealer network, so restock and technical support are close at hand across Delhi NCR

Limitations & considerations

• It’s a primer, not a wearing surface — it must always be overcoated with the specified epoxy, PU or polyurea system, never left exposed to foot or vehicle traffic
• Not recommended for underwater or below-water-table repair work
• Needs a sound substrate of at least 25 MPa compressive strength at 28 days; it can’t rescue weak or friable concrete
• Application is limited to a 5°C-35°C range — outside that, both open time and cure suffer
• Cannot be thinned with solvent to stretch coverage; doing so compromises the cured film
• The 5-6 sq. m/litre/coat coverage figure is theoretical — profile-blasted or porous concrete drinks noticeably more, so estimators should build in a margin

Selection & best practice

Specifications

Industry use cases

How we position Dr. Fixit Cipoxy 16D

Within Dr. Fixit’s own catalogue, Cipoxy 16D is purely a prep-coat — it sits alongside the brand’s waterproofing coatings like Pidiproof LW+ and Raincoat WPC/Classic and its concrete repair products like Pidicrete URP and Crack-X Shrinkfree, but it doesn’t compete with them; those seal or repair concrete, this one preps it for a resin floor. For the epoxy/PU flooring topcoats themselves, Space Arc pairs Cipoxy 16D with the appropriate industrial flooring system rather than selling it in isolation. Where a project genuinely calls for an alternative, Fosroc’s Nitoprime 25 is the closest like-for-like — also a two-component epoxy primer built for damp, slightly contaminated concrete ahead of resin flooring, though solvent-thinnable rather than solvent-free.

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