MC-Bauchemie MC-DUR 1500 TOF
MC-Bauchemie’s solvent-free coal tar epoxy that waterproofs bridge decks, arms steel against corrosion, and takes vehicle and forklift traffic — off one binder.
What is it?
A two-component, 100%-solids coating formed by blending specially selected coal tar with solvent-free epoxy resin — supplied as separate resin and hardener packs that are hand- or drill-mixed 1:1 by weight on site.
Where is it used?
Bridge deck waterproofing membranes, corrosion-protective coats on steel decks and structures, repair mortars and levelling screeds for car parks and carriageways, and abrasion, oil and fuel-resistant flooring in ramps, industrial floors and warehouses.
Why use it?
It collapses three separate specifications — waterproofing membrane, steel corrosion coating and heavy-duty screed — into a single solvent-free binder, cutting the number of systems a contractor has to procure, store and get approved for one structure.
How is it applied?
Mix resin and hardener 1:1 by weight with a slow-speed drill paddle, or by hand for small batches, then apply by brush, nylon or lambskin roller, or airless spray in two coats totalling roughly 250-300 g/m² — or trowel it out as a filled mortar or screed once loaded with aggregate.
About MC-Bauchemie MC-DUR 1500 TOF
MC-DUR 1500 TOF belongs to a coating family that has quietly done the heavy lifting on Indian infrastructure for decades — the coal tar epoxy. MC-Bauchemie blends a carefully selected coal tar with a solvent-free epoxy resin and application additives to get a black, 100%-solids combination that cures into a tough, largely impermeable film. Because it carries no solvent, the mixed material can be loaded with fillers and aggregates without the shrinkage or pinholing problems that plague solvent-cut coatings, which is why the same binder does duty as a thin protective coat and as a trowelled repair screed.
On site that versatility shows up as three different jobs from one set of drums. As a membrane it goes under bridge-deck wearing courses and onto marine and water/wastewater structures, resisting constant moisture, microbial growth and chemical attack. As a coating it protects blast-cleaned steel decks and structures from corrosion. And once filled with aggregate, it becomes an abrasion-, oil- and fuel-resistant screed for car parks, ramps, industrial floors and warehouses — the kind of surface that takes tyre scuff and dragged pallets without lifting. For Indian contractors juggling monsoon deadlines and multi-trade sign-offs, one qualified system covering that range is a genuine simplification.
The technical insight
The coal tar component isn’t filler — it supplies the cured film’s flexibility and low water permeability, while the epoxy resin brings hardness, chemical resistance and adhesion; blended together they cross-link into a film that outperforms either ingredient alone. Being 100%-solids, with no solvent to flash off, is what makes it “highly fillable”: aggregate or sand can be worked into the mix to bulk it into a repair mortar or self-levelling screed without the volume loss and pinholing that solvent-borne coal tar paints suffer as they cure. That single trait is what lets one binder cover both a 200-300 micron protective coating and a trowelled structural screed.
Where it is used
- Waterproofing membrane beneath bridge-deck wearing courses
- Repair mortar and levelling screed for car parks and carriageways
- Corrosion-protective coating on blast-cleaned steel bridge decks and structures
- Protective lining for water purification and clarification plant structures
- Abrasion, oil and fuel-resistant flooring for ramps and warehouses
- Heavy-duty screed for industrial production floors
- Corrosion barrier for marine and general civil engineering structures
- Binder for site-mixed plastic repair mortars
Key advantages
- Solvent-free, 100%-solids system — no flash-off, lower fire and VOC exposure on site during application
- One binder covers waterproofing, steel corrosion protection and heavy-duty flooring — fewer systems to procure and get approved
- Highly fillable — takes aggregate loading for thick screeds and repair mortars without excess shrinkage
- Fast return to service: about 12 hours to foot traffic, 7 days to full mechanical and chemical duty
- Broad resistance to temperature swings, microbial growth, chemical attack and general weathering
- Simple 1:1 by-weight mixing and conventional brush, roller or airless spray application
- Applies over both concrete and correctly prepared steel — one material spanning multiple trades
- Long-proven coal tar epoxy chemistry with decades of track record on Indian bridges and treatment plants
Limitations & considerations
- Not resistant to rising dampness — substrate moisture must stay under 6%, ruling it out for negative-side or perpetually damp conditions
- Coal tar content makes it unsuitable wherever odour, staining or physiological sensitivity rules it out, including potable water tanks and most food-grade areas
- Pot life is only about 30 minutes and shortens further in Indian summer heat, so batch sizing and crew pace need discipline
- Needs a genuinely sound substrate — over 25 N/mm² compressive strength and 1.5 N/mm² pull-off, with priming required on porous concrete
- Cures black only — no option where a light, decorative or reflective floor finish is required
- Application is weather-gated at a minimum of +5°C and under 85% RH, which narrows the working window in monsoon and winter-fog conditions
Selection & best practice
Confirm substrate readiness before ordering material: concrete should test above 25 N/mm² compressive strength with a pull-off value of at least 1.5 N/mm², and moisture content under 6% — prime porous concrete with MC-Bauchemie’s transparent, solvent-free epoxy primer first. Blast-clean steel to Sa 2½ (SIS 05 59 00) to strip mill scale before coating. Mix full packs 1:1 by weight with a slow-speed drill paddle, then box the material between two containers to guarantee homogeneity. Work in batch sizes your crew can place inside the roughly 30-minute pot life, sizing down further in Indian summer heat since higher temperatures shorten it considerably. Keep drums out of direct sunlight before use, do not apply below +5°C or above 85% RH, and protect the fresh film from rain until it has set.
Specifications
| Chemistry / Type | Solvent-free, two-component coal tar epoxy combination |
| Mixing Ratio | 1:1 by weight (resin : hardener) |
| Density (mixed, unfilled) | ≈1.14 kg/litre |
| Pot Life | ≈30 minutes |
| Minimum Application Temperature | +5°C substrate/air, RH below 85% |
| Foot Traffic Resistance | ≈12 hours |
| Full Mechanical & Chemical Service | 7 days |
| Consumption / Coverage | ≈250-300 g/m² for two coats |
| Pack Sizes | Resin & hardener each in 30 kg pails and 5 kg cans (1:1 sets); shelf life 6 months from manufacture |
Industry use cases
Bridge & Highway Infrastructure
Waterproofing membrane laid beneath the wearing course on bridge decks and expansion-adjacent zones exposed to traffic loading and monsoon runoff.
Multi-Level Car Parks & Ramps
Trowelled screed or coating that resists tyre scuffing, oil drips and fuel spillage on parking decks and vehicle ramps.
Water & Wastewater Treatment Plants
Protective lining on purification and clarification structures exposed to constant moisture, chemical dosing and microbial attack.
Industrial & Warehouse Flooring
Abrasion-resistant screed for forklift traffic, dragged steel and general wear in production and warehouse floors.
Steel Bridge Decks & Marine Structures
Corrosion-protective coat on blast-cleaned steel decks and marine civil structures facing constant moisture and chemical exposure.
Frequently asked questions
Can MC-DUR 1500 TOF go over damp or below-grade concrete?
Is it suitable for drinking-water tanks or food-processing areas?
How quickly can the area go back into service?
What colour does the cured coating come in?
What pack sizes are available through Space Arc?
How does it differ from other MC-DUR coatings in the range?
How we position MC-Bauchemie MC-DUR 1500 TOF
Within the MC-DUR range, 1500 TOF sits alongside MC-DUR 1250 and the MC-DUR TopSpeed sealer line — pair it with MC-Bauchemie’s transparent, solvent-free epoxy primer on porous concrete, and step up to MC-DUR ES 1500 or a polyurethane topcoat where a lighter, non-black wearing surface is wanted over the same substrate. Where a project is already standardised on Fosroc, or the application is a submerged tank, channel or sewage structure rather than a trafficked deck, Fosroc’s Nitocote ET402 — a near-identical solvent-free coal tar epoxy — is the credible alternative for keeping single-manufacturer warranty cover across the job.
Fosroc Nitocote ET402 — Where a project is already standardised on Fosroc systems, or the application is a submerged tank, channel or sewage structure rather than a trafficked deck, Nitocote ET402’s near-identical solvent-free coal tar epoxy chemistry lets a specifier keep single-manufacturer warranty cover across the job.
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