About Dr. Fixit Triflex ProDetail

Most roof leaks don’t start in the middle of a flat field — they start at the edges: where a pipe punches through the slab, where a parapet meets a deck, where a metal gutter is bolted down, where two different waterproofing systems have to shake hands. Standard sheet membranes and brush-applied coatings are built for large open areas and tend to be improvised at these transitions, using cut strips, extra fillets or preformed flashing that ages differently from the field around it. Triflex ProDetail exists specifically to close that gap. It’s the Indian-market version of Triflex GmbH’s PMMA detailing resin, brought in by Pidilite under a technology tie-up and sold through the Dr. Fixit large-projects line rather than the retail range, because it is meant for people who already know how to run a two-component system on site.

That positioning matters for how Space Arc specifies it. ProDetail isn’t pitched against a can of terrace waterproofing paint — it’s pitched at the specific 5-10% of a roof or podium that is genuinely hard to seal: metal-to-concrete joints on a PEB shed, skylight upstands on an institutional building, precast panel joints on a podium deck, or a leaking junction on an existing membrane that doesn’t need the whole roof torn up, just that one detail re-done properly. As an authorised Dr. Fixit distributor and applicator, we bring in trained crews for this rather than handing over a drum and a brush, because the working window is short and the mixing has to be right the first time.

The technical insight

PMMA resins cure differently from the polyurethane, bituminous and acrylic systems most Indian applicators are used to. Instead of curing by reacting with atmospheric moisture (like a PU membrane) or by solvent evaporation (like an acrylic coating), the base resin is triggered by a peroxide catalyst dosed at 20 g per kg of resin, which starts a fast free-radical cross-linking reaction through the whole film at once — not just from the surface down. That’s why the viscosity sits at a workable 1,500 ± 500 cps for brushing and rolling, yet the pot life at 20°C is only about 15 minutes: once the catalyst is mixed in, the clock is running regardless of how much is left in the pot. It’s also why the product goes rainproof in roughly half an hour — the cure isn’t waiting on humidity or ambient drying the way a moisture-cure PU membrane is, which is a genuine advantage during short monsoon work windows.

Where it is used

• Metal roof joints and J-bolt fixings on industrial and PEB roofing
• Upstand detailing at pipe penetrations, skylights and AC ducts
• Industrial metal gutter waterproofing
• Junctions between concrete, metal, PVC and glass substrates
• Detailing over gypsum board, drywall and cement-board partitions
• Precast concrete construction joint treatment
• Detail repairs over existing PVC, TPO, EPDM, PU, Polyurea or APP membranes
• Parapet edge flashing and small internal water features

Key advantages

• Rainproof in about 30 minutes, useful for tight monsoon work windows
• Bonds to substrates other coatings struggle with — PVC, metal, glass, cured membranes
• Stays elastic and crack-bridging (≥40% elongation with fleece) rather than going brittle like tape
• Seamless, fully bonded detail with no laps or seams to fail, unlike preformed flashing
• Cold-applied — no torches or hot-air welding needed around sensitive details or occupied buildings
• High tensile and tear strength once reinforced with the embedded fleece
• ETA/CE-documented system with stated fire class and FLL root-resistance data, relevant on green roofs
• Works as a targeted retrofit patch over a failing membrane junction without stripping the whole roof

Limitations & considerations

• It’s a detailing product, not a field membrane — the open roof still needs a compatible main waterproofing coat
• Pot life is only about 15 minutes at 20°C, so batches must be mixed small and applied fast or wastage follows
• Primer selection is substrate-specific across four different primers, adding a technical step non-specialists can get wrong
• Solvent-free doesn’t mean odour-free — the characteristic methacrylate smell during application needs ventilation and PPE
• Costs more per square metre than bituminous detailing tape or a cementitious fillet, so it’s justified where the detail truly demands it
• Sold only in project-sized 15 kg drums with matched catalyst and fleece packs — no small pack for spot DIY touch-ups

Selection & best practice

Specifications

Industry use cases

How we position Dr. Fixit Triflex ProDetail

Within the Dr. Fixit range, ProDetail is a specialist large-projects product rather than a retail SKU — it’s meant to be paired with a main-field system such as Dr. Fixit Aquashield PU or Roofseal on the open roof, with Dr. Fixit Pidicrete URP handling structural crack repair before detailing begins. Space Arc’s Fosroc line, which we also distribute, has no true PMMA-resin equivalent: Nitoproof 600 is a capable one-component polyurethane liquid membrane for field waterproofing, and Brushbond TGP handles crystalline tanking, but neither matches ProDetail’s cold-cure, fleece-reinforced performance at movement joints and dissimilar-substrate junctions. For that specific job — sealing the detail, not the field — ProDetail, brought in through the Triflex-Dr. Fixit tie-up, remains the more direct specification.

Related Waterproofing products

View all Waterproofing products →