
About the product
Beissier Granocryl is a water-based pigmented acrylic primer specifically formulated to act as an anchoring and leveling base prior to the application of stone coatings such as Granocryl Acrylic Mortar and other decorative facade coatings. It seals, hardens, strengthens, and waterproofs the substrate, reducing its absorption and ensuring that the subsequent coating adheres evenly and durably. Weather-resistant, waterproof, and breathable, with high penetrating power. Available in white and custom colors. 25 kg format.
What substrates and projects is it ideal for?
- ✓ Mandatory anchoring base prior to applying Granocryl Acrylic Mortar on facades
- ✓ Primer before other stone coatings, textures, and exterior decorative finishes
- ✓ Consolidation and sealing of porous, dusty, or irregularly absorbent substrates before coating
- ✓ Substrate leveling on cement, mortar, concrete, and block facades
- ✓ Preparation of exterior and interior substrates requiring high-resistance pigmented primer
Why choose Beissier Granocryl Primer
- ✓ Seals, hardens, and strengthens the substrate — penetrates the substrate, sealing porosity and hardening dusty or low-cohesion areas, creating a firm and uniform base for the subsequent coating
- ✓ Waterproofs the substrate — creates a waterproof barrier against rainwater that protects the substrate before and after applying the decorative coating
- ✓ Breathable — permeable to water vapor and CO₂ — the treated wall continues to breathe, preventing internal moisture accumulation that could cause coating detachment
- ✓ Pigmented — facilitates coverage of the final coating — unlike colorless primers, pigmented primer improves the coverage of the decorative coating applied over it, requiring less material to achieve the desired chromatic uniformity
- ✓ High penetrating power — penetrates deeply into the substrate to consolidate and regulate absorption, preventing uneven exterior coating due to porosity differences
- ✓ Weather-resistant — acrylic formulation with resistance to sun exposure, rain, and wetting/drying cycles; suitable for exterior facades in any orientation
Compatible substrates
How to apply — in 4 steps
- Prepare the substrate: the facade must be clean, sound, and free of dust, grease, efflorescence, and poorly adhered parts. Remove old paints or coatings in poor condition. On substrates with mold or algae, first apply a fungicidal cleaner and rinse thoroughly.
- Prepare the product: shake well before use. It is a ready-to-use product; it can be slightly diluted with water if the substrate is very porous to promote penetration in the first coat.
- Apply with a brush, roller, or airless spray gun in a uniform coat, covering the entire surface well. On very porous or dusty substrates, apply two coats to ensure complete sealing.
- Allow to dry before applying the coating: wait the drying time indicated in the technical data sheet before applying the stone or decorative coating over it.
Do not apply at temperatures below +5°C or above +35°C, or during rain or when frost is expected.
Technical specifications
| Product type | Water-based pigmented acrylic primer for facade coatings |
| Use | Exterior and interior |
| Color | White · Custom colors available |
| Properties | Sealing · Hardening · Strengthening · Waterproof · Breathable |
| Presentation | Ready to use |
| Application | Brush · Roller · Airless spray gun |
| Subsequent coating | Granocryl Acrylic Mortar · Other stone and decorative coatings |
| Reference | 70248-001 |
| Brand | Beissier |
| Format | 25 kg (bucket) |
Complete Granocryl System
Granocryl Primer is the first step of the Beissier Granocryl stone coating system. For optimal results, always apply the primer before the decorative coating. The primer color should be coordinated with the final coating shade to maximize covering power and reduce the number of coats needed.
Application conditions
Do not apply at temperatures below +5°C or above +35°C, or during rain, intense direct sunlight, or when frost is expected. Do not apply on substrates with active rising damp without first treating the cause.



















