Mapei Primer G – 25kg Water-Based Acrylic Primer for Absorbent Surfaces

What it is

Mapei Primer G (25kg) is a water-based acrylic primer designed to reduce substrate porosity, promote adhesion and control dust before installing ceramic/stone tiles or applying self-levelling underlayments.

Where to use

• Gypsum or anhydrite screeds (apply only on perfectly dry surfaces; residual moisture ? 0.5%).

• Cement screeds, concrete, and other absorbent mineral substrates.

• Interior floors and walls prior to tiling or levelling.

Key benefits

• Improves adhesive and leveller bond strength.

• Evens out absorption for uniform curing.

• Reduces surface dusting and helps prevent pinholes.

• Easy brush/roller application; low odour.

How to use (summary)

1. Surface prep: Substrates must be clean, sound and porous—free of dust, oil, paint and laitance.

2. Dilution: Mix with clean water from 1:1 to 1:3 based on substrate absorbency.

3. Apply: Brush or roll an even coat; avoid pooling.

4. Dry: Allow to dry completely before tiling or pouring leveller.
   (Always follow the latest Mapei TDS for detailed instructions and coverage based on substrate & dilution.)

Safety & storage

Use standard PPE, ensure ventilation, and store the container sealed, away from frost and direct heat.

Pack & brand

• Pack size: 25kg

• Brand: Mapei

• Supplier: Hercules Depot – genuine products & fast delivery across the UAE.