Boydur® M12 · FAQ Boydur® M12 questions. Clear answers before the repair starts.

At 20°C the repaired area is typically traffic-ready in about 60 minutes. Lower temperatures, greater thickness and site conditions change this time.

About 25 minutes at 20°C. In warm weather the reaction is faster and the working time is shorter, so tools, labour and the prepared area should be ready before mixing.

Yes. The application range is −10°C to +40°C. At low temperatures curing takes longer than the one hour typical at 20°C.

The cured mortar is designed for service temperatures from −40°C to +60°C.

On sound, dry, clean and load-bearing concrete, mineral substrates and suitable asphalt. Suitability for other substrates should be confirmed with our technical team.

On absorbent mineral substrates, Boydur® A10 or a suitable MMA primer is applied first, and M12 is placed only after the primer has fully cured.

No. The substrate must be completely dry. Application onto damp surfaces is one of the most common causes of failure.

The minimum thickness is 5 mm. Deeper repairs can be built up with suitable aggregate grading or in layers; there is no fixed maximum single-layer thickness because it depends on aggregate and temperature.

The 3 kg A component (resin) is homogenised, then the 15 kg B component (powder) is added gradually and mixed with a low-speed mixer until lump-free. Material past its pot life must not be used.

Remove oil, dust, laitance and loose material, cut weak concrete back to a sound base and roughen or clean mechanically. The current Technical Data Sheet gives the full procedure.

Typical values: compressive strength ≈34 N/mm², flexural strength ≈24 N/mm², E-modulus ≈4,350 N/mm², Shore D 75–80 and pull-off adhesion ≈3.9 N/mm².

Yes. It is designed for industrial areas with forklifts, trucks and equipment traffic. Repairs under very high point loads should be reviewed with our technical team.

Yes. Boydur® M12 is a water- and weather-resistant system for indoor and outdoor use.

MMA mortars have good resistance to oils, fuels and de-icing salts in typical exposure. For continuous contact with aggressive chemicals, send us the exposure details.

No. Normal industrial cleaning is sufficient.

Local repair of potholes, spalls and cracks, rebuilding joint edges and manhole surrounds, anchoring machines, posts and barriers, and heavy-duty toppings from 5 mm.

No. It is a rigid mortar. Moving cracks and working joints need an elastic sealant; M12 can rebuild the broken joint edges around them.

Yes, for posts, guardrails, machine bases and fixtures, subject to anchoring design and approval for the loads involved.

The main differences are speed and temperature: MMA returns to traffic in about one hour and can be applied down to −10°C, while epoxy and cementitious mortars usually need many hours to days and higher temperatures.

As an 18 kg set: 3 kg A component (reactive MMA resin) and 15 kg B component (mineral fillers and hardener). Standard colour is concrete grey.

12 months in the original unopened packaging, stored in a cool, dry, well-ventilated place.

The MMA resin is flammable and has a strong odour before it cures. Use trained personnel, ventilation, gloves, goggles and protective clothing, keep away from heat and flames, and follow the Safety Data Sheet.

Download the current English Technical Data Sheet and Safety Data Sheet from the Technical page, or request them by e-mail.

Distributors, applicators and solution providers with experience in industrial flooring or infrastructure maintenance can apply through the Partner Programme.

Technical onboarding, application guidance, English sales and technical documentation, project support and direct contact with the manufacturer.

Minimum quantities depend on the region and partnership model. Contact us to discuss your market.

Boytorun Kimya Sanayi A.Ş., an independent family-owned manufacturer of MMA construction chemicals, established in Istanbul in 1965 and certified to ISO 9001 and ISO 14001.