LAVAFINISH FF is a single-component, polymer-modified cementitious fairing coat developed for producing smooth, fair-faced finishes over concrete. Formulated with high-performance cement, fume fillers, and advanced additives, it fills surface imperfections such as blowholes and pores in 0.5–3 mm layers. It requires only water addition on-site and can be applied on horizontal and vertical surfaces. Once cured, LAVAFINISH FF forms a shrinkage-compensated, crack-resistant, and impermeable layer that bonds excellently to concrete. It provides long-lasting resistance to atmospheric gases, chlorides, and salts, ensuring surface durability and aesthetic refinement for both new and repaired concrete structures.
Lavafinish FF is mixed with water and troweled in thin layers onto saturated concrete or masonry to give a fair-faced finish.
Summary of the method in the Lavafinish Ff Technical Data Sheet. Always follow the full TDS on site.
| Standard | Title | Referenced for |
|---|---|---|
| EN 1504-9 | Products and systems for the protection and repair of concrete structures — General principles for the use of products and systems | Listed in the TDS |
| ASTM C109 | Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube Specimens) | Compressive strength: >22 N/mm2 (TDS cites ‘ASTM 109’) |
| ASTM C580 | Standard Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes | Flexural strength: >6.0 N/mm2 at 28 days (TDS table cites ‘ASTM 580’) |
| BS 1881-207 | Testing concrete — Recommendations for the assessment of concrete strength by near-to-surface tests | Adhesion to concrete: > 1.5 N/mm² |
Standards and test methods as referenced in the Lavafinish Ff Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.
Lavafinish FF is applied from 0.5 mm to 3.0 mm per layer and can be applied in more than one layer.
Coverage is approximately 1.65 kg per square meter for 1 mm thickness, subject to site conditions.
Use 5.2 to 5.6 liters of clean water per 20 kg bag, never more than 7.0 liters. Yield is 16.0 liters per 20 kg bag when mixed with 5.6 liters of water.
Curing is not generally required as the product is highly polymer modified. Under high temperatures and drying winds, use light water fogging for 48 hours or apply Cemcure WB.
It is designed for concrete or masonry surfaces, including thin coats over precast concrete that will receive protective coatings and filling pinholes or porous surfaces before overcoating.
