LAVABOND EP is a two-component, solvent-free, low-viscosity epoxy bonding agent formulated to create a high-strength bond between old and new concrete. It delivers exceptional adhesion that exceeds the tensile strength of most substrates, making it ideal for structural repairs and overlays. Its deep-penetrating formulation offers excellent mechanical strength and chemical resistance, even in aggressive environments. LAVABOND EP is impermeable, moisture-resistant, non-shrinking, and suitable for internal and external applications. Its solvent-free composition makes it safe for use in enclosed or poorly ventilated spaces, providing a reliable, high-performance bonding solution for demanding construction projects.
Lavabond EP is mixed on site and applied by brush, roller or spray to a prepared substrate, with new concrete or screed cast while it is still tacky.
Summary of the method in the Lavabond Ep Technical Data Sheet. Always follow the full TDS on site.
| Standard | Title | Referenced for |
|---|---|---|
| ASTM C881 | Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete | Type IV, grade 2, class C epoxy bonding system (listed under Standards in the TDS); TDS gives no explicit compliance statement |
| ASTM C579 | Standard Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes | Compressive strength |
| ASTM D638 | Standard Test Method for Tensile Properties of Plastics | Tensile strength |
| ASTM D570 | Standard Test Method for Water Absorption of Plastics | Water absorption |
| ASTM D695 | Standard Test Method for Compressive Properties of Rigid Plastics | Listed in the TDS |
Standards and test methods as referenced in the Lavabond Ep Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.
Lavabond EP covers 6-7 square meters per liter at 150 micron wet film thickness, depending on the porosity of the substrate. Very porous substrates need two coats.
Concrete or screed must be cast while the bonding agent is still tacky but not wet. The TDS gives a maximum overlay time of 20 hours at 25°C; if the coat has dried, remove it mechanically and reapply.
Pot life is 60 minutes at 25°C. The application temperature range is +5°C to +35°C, and complete hardening takes 7 days at 30°C.
Yes. Lavabond EP is solvent free, so the TDS states it can be used in closed places, for both internal and external applications.
It is supplied in 4 liter dual metal containers. Store in original packing in dry conditions away from direct sunlight in a temperature-controlled warehouse; shelf life is 12 months from production in unopened packing.