A natural fiber finish for bonding, leveling and raw-surface base coats — the starting point for every Agroblox wall.
Rough Finish is the starting point for plastering once panels or blocks are installed and the seams are taped. Mixed with water and trowelled onto the wetted substrate, it adheres strongly to Agroblox surfaces — and to most conventional masonry.
Its coarse texture locks in the finish coat while remaining fully breathable, letting the wall regulate moisture and temperature just like the blocks and panels it covers. Left exposed, it reads as an honest, textured mineral surface.
Bonding coat · substrate leveling · exposed textured wall finish · compatible with standard masonry.
From the official V2 datasheet. Composition: natural fibers, volcanic ash, minerals and water — nothing else.
| Recommended use | Base coat & leveling layer |
| Application | Trowel onto wet substrate |
| Preparation | Mix with water; spray wall first |
| Seams | 4–6″ plaster tape before coating |
| Compatibility | Agroblox blocks & panels, standard masonry |
| Finish over | Fine Finish after 2–4 weeks |
| Density | 250–300 kg/m³ |
| Compressive strength | 0.3 N/mm² |
| Flexural strength | 15 N/mm² |
| Thermal conductivity (λ) | 0.1 W/m·K |
| Thermal capacity | 1500 J/kg |
| Sound absorption | NRC 0.65 |
| Fire rating | Class B, S1, d0 |
| CO₂ footprint | −0.35 kg eq CO₂/m²/year |
| Water vapour permeability | High |
| Lifespan | 40+ years |
Apply 4–6″ plaster tape across all panel and block joints.
Rough Finish is mixed on site with water — nothing else.
Spray the wall with water so the coat bonds to a wet surface.
Apply with a trowel; level and texture in the same pass.
Official datasheets and the written warranty — every Agroblox product is covered by a voluntary limited warranty, complementary to Costa Rica’s Ley N° 7472.
Certification and independent testing are in process; we make no third-party certification claims until they are formal. For pricing and specification questions, contact us directly: +506 6122 6647 · info@agroblox.com