Skip to main content

FC - Primers (ENG)

Craftsman Guide / Primer Systems Primer Selection — Forcrete. Select the correct primer based on substrate conditions and the subsequent base coat to be applied.. 💡 About Primers: The primer binds su…

tomas martinsson
Updated by tomas martinsson
Craftsman Guide / Primer Systems

Primer Selection — Forcrete

Select the correct primer based on substrate conditions and the subsequent base coat to be applied.

💡 About Primers:
The primer binds surface dust, regulates substrate porosity/suction, and guarantees superior adhesion for the microcement system. Primer choice depends entirely on the substrate material and the subsequent product layer.
🛑 Before You Begin:
• The substrate must always be sound, dry, and free from dust, grease, oil, and loose material.
• Always allow the primer to dry or cure fully before moving on to the next step.
• When sand blinding, broadcast quartz sand generously into the wet primer. Sweep up and vacuum away all loose excess sand prior to troweling.

1. Primers for Walls (Monostone & Rockplaster)

Monoprime

Fast-drying deep-penetrating primer for absorbent walls (plasterboard, render, and absorbent boards) before applying Monostone XL or L.

⏱️ Drying Time: approx. 30–60 min | ⚖️ Coverage: approx. 50–70 g/m²
Instructions: Apply Monoprime ↗
Monogrip

Blue, ready-mixed silica grip primer for painted walls, vinyl sheet, and tiles before applying Monostone XL or L.

⏱️ Drying Time: approx. 30–60 min | ⚖️ Coverage: approx. 100 g/m²
Instructions: Apply Monogrip ↗

2. Epoxy Primers for Floors, Concrete & Tiles

Forprime DPM

2-component epoxy primer for tile floors, vinyl sheet, and worktops where maximum adhesion and moisture blocking are required.

⏱️ Cure Time: 6–24 hours | ⚖️ Coverage: 120–150 g/m²
Instructions: Apply Forprime DPM ↗
Forprime EPST

Combined primer and base coat for concrete and self-leveling screed when you want to embed mesh and prime in the same step.

⏱️ Cure Time: min. 12 hours | ⚖️ Coverage: approx. 750 g/m² (Always sand-blinded)
Instructions: Apply Forprime EPST ↗

3. Primer for Decorative Walls (Prior to XT & Coarse)

Forprime EPWB

Waterborne 2-component epoxy primer for absorbent walls in dry, decorative areas before troweling Microbase XT or Microquartz Coarse.

⏱️ Trowel After: 30–120 minutes | ⚖️ Coverage: 60–100 g/m²
Instructions: Apply Forprime EPWB ↗

4. Quick Matrix: Substrate to Primer

Substrate
Primer
Subsequent Layer
Sand Blinding?
Concrete & Screed (Floor)
Forprime EPST
Forprime HB / Microbase XT
Yes, always
Tiled Floors & Vinyl (Floor)
Forprime DPM
Forprime HB / Microbase XT
Yes, with XT
Plasterboard & Render (Wall)
Monoprime
Monostone XL / L
No
Painted Walls & Vinyl (Wall)
Monogrip
Monostone XL / L
No
Absorbent Wall (Decorative)
Forprime EPWB
Microbase XT / Microquartz
No
Drying Times: Monoprime and Monogrip dry in approximately 30–60 minutes. On Forprime EPWB, apply cement within 30–120 minutes. Forprime DPM and EPST require 6–24 hours to cure before subsequent applications.

How did we do?

FC - Trowel X Base & L (ENG)

FC - Forprime EPWB (ENG)

Contact