Mapei Eco Prim T Plus is a versatile acrylic floor primer that prepares both absorbent and suitable non-absorbent substrates for compatible levelling and smoothing compounds. It is particularly useful on renovation jobs where the existing floor changes from porous concrete or screed to sound ceramic tiles, because the right primer helps the next layer bond consistently instead of treating every surface as though it absorbs moisture in the same way.
On absorbent substrates, Eco Prim T Plus helps regulate suction so levelling compounds can flow and cure more consistently. On approved non-absorbent surfaces, it acts as an adhesion-promoting layer before the new floor build-up. Its low-odour, water-based formulation is practical for indoor floor preparation in homes and commercial spaces.
Choose Eco Prim T Plus when the job calls for a general-purpose primer beneath a compatible floor leveller across absorbent or approved non-absorbent surfaces. Primer G is the more specifically targeted option for gypsum and anhydrite preparation, while Eco Prim Grip creates a textured bonding key for particular renders and smoothing applications. They are not automatically interchangeable.
The substrate must be sound, clean and suitable for the selected levelling or adhesive system. Dilution, drying and overcoating intervals vary by substrate and subsequent product. Eco Prim T Plus is not a moisture barrier or a remedy for rising damp; choose a dedicated moisture-control system where required.
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 |
|---|---|
| Consistency | Fluid liquid |
| Application Temperature | +5°C to +35°C |
| Coverage Rate | 0.10–0.20 kg/m² depending on substrate and application |
| Dilution on Cementitious or Anhydrite Substrates | Typically 1 part primer to 2 parts water |
| Application on Existing Tile, Stone or Suitable Wood | Use undiluted |
| Drying Time Before Covering | Approximately 2–5 hours depending on conditions |
| Maximum Recommended Delay Before Covering | 24 hours |
| Moisture Barrier Systems | Special application window and levelling thickness restrictions apply |
| Storage Conditions | Avoid frost; store in original sealed packaging |
Here are some common examples on where Mapei Eco Prim T Plus Primer used by our customers.
