For interior floor preparation where levelling compounds or cementitious adhesives must bond reliably to both absorbent and non-absorbent surfaces, Eco Prim T Plus Primer establishes a high-adhesion keyway. This solvent-free acrylic resin-based primer in water dispersion prepares challenging substrates—including very compact concrete, old adhesive residues, non-porous ceramic tiles, and moisture-stable timber—to prevent debonding and levelling failures.
Eco Prim T Plus Primer forms a flexible, water-resistant film that bridges the gap between the substrate and the subsequent smoothing compound or mortar. When applied to porous surfaces like cementitious renders or gypsum, it regulates substrate absorption to prevent the levelling compound from drying out too quickly. On non-absorbent surfaces like terrazzo, ceramic, or natural stone, it provides the mechanical grip necessary for cementitious materials to adhere. It also functions as a bonding aid over non-sanded epoxy or polyurethane moisture vapour barriers, such as Primer MF or Mapeproof 1K Turbo, provided the subsequent levelling layer is kept under 10 mm in thickness.
Ensure all substrates are uniformly dry, sound, and free of dust, loose particles, paint, wax, oil, rust, or other bond-inhibiting contaminants. Apply the primer using a brush or roller. Dilute the primer 1 to 2 with water when applying to absorbent cementitious or anhydrite surfaces. Apply undiluted on non-porous surfaces, including existing ceramic tile, natural stone, wood, and water-resistant adhesive residues. For applications over unsanded Primer MF or Mapeproof 1K Turbo moisture barriers, apply Eco Prim T Plus Primer undiluted once the barrier is dry (2 to 4 hours) and strictly within 24 hours of the barrier application.
Can Eco Prim T Plus be used on both absorbent and non-absorbent floors?
Yes. It is a universal primer for both substrate types.
How is it diluted?
It is normally diluted 1:2 with water on absorbent cementitious or anhydrite substrates and used neat on non-absorbent surfaces.
How long does it take to dry?
Approximately 2–5 hours in the current Australian TDS, depending on conditions.
Can it be used over rising damp?
No. Rising damp is excluded.
| Property | Value |
|---|---|
| Density | 1020 kg/m³ |
| Viscosity | 600 mPa·s (spindle #2, 30 rpm) |
| Consistency | Fluid liquid |
| Solid Content | 42% |
| pH Value | 7.5 |
| Full Cure | 30–40 minutes |
| Tiling Ready | 4–5 hours |
| Application Temperature | +5°C to +35°C |
| Coverage Rate | 0.10–0.20 kg/m² (depending on substrate porosity and application method) |
| Resistance Testing | Excellent (above average) |
| Shelf Life | 24 months (unopened, stored correctly) |
| Storage Conditions | Avoid frost and store in original sealed packaging |
Here are some common examples on where Mapei Eco Prim T Plus Primer used by our customers.
