Genfloor / Primers and Impregnations / 640 Genfloor Primer
PRIMERS AND IMPREGNATIONS · PRIMER / IMPREGNATION
640
Genfloor Primer
2K · Solvent-free epoxy · Primer
Solvent-free, two-component, clear epoxy concrete primer and impregnation.
A 100% solids (solvent-free), two-component, clear concrete primer made of epoxy resin and hardener. Its excellent penetration fills the capillary pores of concrete, increases surface strength and forms a strong adhesion bridge for subsequent epoxy and polyurethane coats.
Technical Data
LIANT
Epoxy resin
COMPOSANTS
Two-component (2K)
POSITION DANS LE SYSTÈME
Primer / impregnation
DENSITÉ
1.05 ± 0.05 kg/L
EXTRAIT SEC EN VOLUME
Solvent-free (~100%)
RENDEMENT THÉORIQUE
250–500 g/m² (depending on substrate)
RAPPORT DE MÉLANGE
2 : 1 by weight (A : B)
DILUTION
Do not thin
MÉTHODE D’APPLICATION
Roller, brush; trowel for sand-filled levelling
PRÉPARATION DE SURFACE
Milling / shot-blasting, moisture < 4%
RENDEMENT
—
RENDEMENT
—
SÉCHAGE
Dust dry 3–4 h · Touch dry 8–10 h · Full cure 7 days (23 °C)
CONDITIONNEMENT
15 kg kit (10 kg A + 5 kg B)
TEINTE
Clear
DOCUMENTS TECHNIQUES
Utilisation et application
DOMAINES D’UTILISATION
Used as a primer coat on cured concrete, terrazzo, ceramic tiles and metal to give floor coatings strong adhesion.
PRÉPARATION DE SURFACE ET APPLICATION
New concrete must be cured for at least 28 days; surface moisture must not exceed 4%. Remove weak surface layers, laitance, oil, curing compounds and old coating residues by milling, shot-blasting or diamond grinding; remove the dust with an industrial vacuum. Repair cracks and holes with epoxy repair mortar. Mix components A and B with a low-speed mechanical mixer until homogeneous (at least 2–3 minutes) and apply the mix within its pot life. Apply the primer by roller or brush so that it impregnates the surface; on rough surfaces it can be mixed 1:1 with 0.2–0.5 mm silica sand and used as a trowelled levelling coat. Apply the next coat within 24 hours at the latest. Ambient and floor temperature must be between +10 °C and +30 °C and relative humidity below 80%; floor temperature must be kept at least 3 °C above the dew point.
DOMAINES D’APPLICATION
→ Factories and Production Plants
→ Warehouses and Logistics Centres
→ Pharmaceutical, Hospital and Laboratory
→ Aircraft Hangars and Defence Industry
Technical data are average values at 20 °C and 65% relative humidity. Coverage varies with surface roughness, application method and film thickness. Consult the Gen Boya technical team for project-specific system design.
POINTS FORTS
— Solvent-free, low-odour formulation
— Deep penetration into concrete capillaries
— Increases surface strength
— Can be used with silica sand as a levelling / scratch coat
— Compatible with all Genfloor epoxy and polyurethane systems
SYSTÈME RECOMMANDÉ
COUCHES SUIVANTES
Continue with 657 / 660 Self-Levelling, 659 Genfloor Topcoat SF or 655 HB Flex.