LAVAFINISH FL is a premixed, polymer-modified, shrinkage-controlled skim coat formulated for re-profiling and fairing concrete surfaces with voids from 3 to 8 mm. Made from Portland cement, hydraulic binders, silica sand, and performance additives, it mixes easily with water to form a workable mortar suitable for vertical, horizontal, and overhead repairs. LAVAFINISH FL delivers a smooth finish with excellent adhesion, making it ideal for surface correction and minor repairs. It resists chloride ingress, chemical exposure, and atmospheric attack, ensuring long-term durability and compatibility with subsequent coatings or repair layers in high-performance concrete applications.
Lavafinish FL is mixed with water only and troweled onto saturated surface dry concrete in layers up to 8 mm.
Summary of the method in the Lavafinish Fl 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 |
| BS 1881-207 | Testing concrete — Recommendations for the assessment of concrete strength by near-to-surface tests | Adhesion bond to concrete: >1.5 N/mm2 |
| ASTM C109 | Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube Specimens) | Compressive strength: >30 N/mm² at 28 days |
| ASTM C580 | Standard Test Method for Flexural Strength and Modulus of Elasticity of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes | Flexural strength: >5 N/mm² at 28 days |
Standards and test methods as referenced in the Lavafinish Fl Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.
Lavafinish FL is applied for fairing of voids from 3 mm up to 8 mm, in layers with a maximum thickness of 8 mm.
The TDS gives coverage of approximately 5.0 square meters at 3.0 mm thickness, subject to site conditions. Yield is 15 liters per 25 kg bag with 4.75 liters of water.
From 5°C to +40°C. Workability of the mixture is more than 30 minutes at 25°C.
It is used on horizontal, vertical and overhead surfaces as a skim coat for walls and columns, a honeycombing filler for soffits, a re-profiling layer in closed areas such as staircase landings and service rooms, and for minor repairs to concrete flooring.
12 months from production date in unopened original packing, stored dry and away from direct sunlight and high humidity.
