APF VaporSolve® LP – Low Perm Moisture Mitigation Epoxy

Product Overview

APF VaporSolve® LP is a 100% solids, low-permeance epoxy specifically engineered to isolate moisture-sensitive flooring systems from high-moisture concrete. Designed for use where concrete exhibits up to 99% RH (per ASTM F2170), this single-coat system is part of the APF VaporSolve Ultra System and exceeds ASTM F3010 standards for moisture mitigation.

This coating should only be applied over concrete that has never been treated with reactive silicate curing compounds or densifiers. If sodium or potassium silicates are present—or suspected—the APF VaporSolve Primer is required. Surface shot-blasting alone is not effective at removing metasilicate residues.

Key Features

• Controls High Moisture Levels: Suitable for substrates with up to 99% relative humidity (RH).
• Single-Coat Application: No primer needed when silicates are not present.
• Superior Adhesion: Formulated for excellent substrate wetting and penetration.
• Low Perm Rating: Protects against moisture vapor transmission.
• Damp Concrete Application: Advanced curing agent allows installation over damp surfaces.
• Application Temperature Range: 65°F to 85°F (18°C to 30°C).

Recommended Uses

• Commercial concrete floors with elevated RH levels
• Pre-installation under sensitive floor coverings
• Moisture remediation in slab-on-grade construction

Installation Notes

For best results, install APF VaporSolve® LP over properly prepared concrete using a notched squeegee and back-rolling method. If silicate-based curing agents or densifiers have been applied to the concrete, use VaporSolve Primer before applying this product. Do not apply below the minimum temperature range. Always follow manufacturer’s technical data sheet for coverage and cure times.