ZHENGOU GroupZHENG'OU
Solvent-free epoxy primer & intermediate coatEpoxy systems

Solvent-free epoxy primer & intermediate coat

Low-viscosity solvent-free epoxy for primer and intermediate coats — deep concrete penetration, high bond strength and excellent alkali resistance.

Market performance
Annual sales (group level, 2025)
Approx. RMB 140 million
Group best-seller ranking
Top 1

Group-level sales figure for the 2025 financial year, shown as an approximate value.

Overview

This solvent-free epoxy primer and intermediate coat is based on low-viscosity epoxy as the main film-forming substance, blended with a special high-quality hardener. It offers low VOC, high penetration, good film formation and strong compressive strength as an intermediate coat.

Key features

  • Meets the environmental requirements of GB/T 22374 — solvent-free, heavy-metal-free and very low odour during application
  • Good penetration into concrete and high bond strength
  • Excellent alkali resistance — tolerates the high alkalinity of concrete substrates
  • Easy to apply — roller, squeegee or spray
  • Good coating compatibility — as a primer it pairs with epoxy and polyurethane intermediate coats and topcoats

Recommended for

  • Primer on concrete substrates in flooring systems
  • Primer for epoxy mortar, and intermediate coats with sand broadcast or skim coating
  • Properly prepared steel surfaces

Technical data

VOC content
13 g/L
Free formaldehyde
Not detected
TVOC emission
0.8 mg/m³
Formaldehyde emission
Not detected
Drying time
Surface-dry 6 h / through-dry 24 h
Alkali resistance (saturated Ca(OH)₂, 48 h)
Film intact: no blistering, peeling or discolouration
Tensile bond strength
2.6 MPa
Compressive strength
54 MPa

Values are typical and depend on substrate, ambient conditions and build-up. Request the current TDS before specifying.

Test reports & certificates

Scans of official third-party reports. Click a cover to read the full document.

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