GrafGen Interior/Exterior
One breathable formula for walls, ceilings and masonry, inside and out. Non-film-forming, it cures to a washable, Class 1 scrub-resistant surface (EN 13300). Solvent- and microplastic-free.
- One formula for interiors and exteriors, three finishes
- Class 1 scrub resistance: washable walls that stay mineral
- Made for walls exposed to high humidity
- Tinted at participating dealers — 34 Harmony colors as the starting point
Where it goes: Walls · Ceilings · Masonry · New construction · Repaints · High-humidity areas
PREMIUM INTERIOR + EXTERIOR MINERAL PAINT
A premium mineral paint for interior and exterior surfaces, combining exceptional washability and durability with the breathability of CaCO₃™ Technology (Graphene Technology). GrafGen™ delivers a refined architectural finish across walls, ceilings, masonry and properly prepared specialty surfaces.
At a glance
- ZERO VOC
- INTERIOR + EXTERIOR
- 325–405 SQ. FT./GAL PER COAT
- BRUSH · ROLL · SPRAY
- CLASS 1 SCRUB RESISTANCE
Why it works
- One formula for interiors and exteriors, three finishes
- Class 1 scrub resistance: washable walls that stay mineral
- Made for walls exposed to high humidity
- Tinted at participating dealers — 34 Harmony colors as the starting point
Where to use it
Walls · Ceilings · Masonry · New construction · Repaints · High-humidity areas
Technical details
| Coverage | 325–405 sq ft/gal per coat (Two coats recommended) |
|---|---|
| Finishes | Matte · Eggshell · Semi-Gloss |
| Scrub resistance | Class 1 (EN 13300) (> 10,000 cycles ASTM D2486 (Matte)) |
| VOC | Zero VOC |
| Recoat / Full cure | 2–4 h / 10 days (at 77 °F · 60% RH) |
| Application · Apply at | Brush, roller or spray (41–104 °F) |
| Color | 34 Harmony colors (custom tinting at participating dealers) |
How to apply it
- Prepare: Clean, dry and sound. Prime only where your wall needs it. (24 h if primed)
- 1st coat: Reduced 10% with water by weight (Front: 5%). Cut in and roll, keeping a wet edge. (2–4 h)
- 2nd coat: Reduced 5%, same across the wall. (2–4 h)
- 3rd coat: Optional — if hide is incomplete or for deep colors. (24 h dry)
- Cure: 10 days: no washing or scrubbing. Exterior: no rain or dew for 48 h. (10 days)
Surface preparation
| Surface | Primer |
|---|---|
| Well-bonded flat, satin or gloss paint | Not needed (scuff-sand gloss) |
| Gypsum plaster, patching compound, drywall | Primer L44 |
| New stucco, concrete, CMU or brick (cured 28 days) | Primer L44 |
| Mold, algae or mildew residue (after cleaning) | Primer L44 |
| Salts or efflorescence | Neutralysalt Primer |
| Wood and MDF | All Terrain 4x4 |
| Rust-free metal, tile, glass, non-porous | All Terrain 4x4 |
| Peeling paint or vapor-blocking film | Remove it first, then per substrate |
Questions
How much will I need?
Coverage: 325–405 sq ft/gal per coat. Two coats recommended. Use the project calculator on this page — it rounds up to full containers.
Do I need anything else?
Only the primer your surface needs: pick your surface under How it works and we'll show the one primer it needs, if any. Not sure? Tell us what's on your wall and we'll help you choose.
Where can I use it?
Interior and exterior. Walls, Ceilings, Masonry, New construction, Repaints, High-humidity areas.
What's the recoat time?
2–4 h / 10 days (at 77 °F and 60% RH; cold or humid conditions extend it).
How long does an unopened pail keep?
24 months in the original, sealed container.