AndPrime Impregnation Primer

AndPrime Impregnation Primer is a two-pack solvent-free epoxy primer designed to seal, strengthen and prepare porous or weak surfaces before applying high-performance coatings. It penetrates deeply to stabilise and consolidate concrete, steel and masonry, providing an ideal base for AndCoat HB Epoxy and other heavy-duty topcoats.

With excellent adhesion, low viscosity and chemical resistance, this epoxy primer ensures long-term performance in demanding environments such as warehouses, workshops, factories, chemical bunds and tank linings.

Surface Preparation 

Correct preparation is essential for optimum results:

• Concrete & Masonry: Ensure surfaces are fully cured (minimum 28 days), sound, clean and dry. Remove laitance, dust, oil, grease and other contaminants by vacuum blasting or grinding. Repair surface defects before application.

• Steel: Abrasive blast clean to SA 2½ (ISO 8501-1) or equivalent to remove rust and mill scale. If blasting is not possible, mechanically prepare to St3 standard. Coat immediately after preparation to avoid flash rusting.

• Previously Coated Surfaces: Remove unsound coatings and thoroughly abrade any remaining sound coating to provide a key.

• All surfaces must be free from moisture and contaminants before application.

Technical Data

• Type: Two-pack solvent-free epoxy primer

• Finish: Clear, low sheen

• Mix Ratio: 4:1 by volume (Base : Hardener)

• Volume Solids: Approx. 100%

• Viscosity: Low – penetrates porous substrates

• Theoretical Coverage: 4–6m² per litre (depending on porosity of substrate)

• Film Thickness:

  • Wet: 150–200μm per coat

  • Dry: 150–200μm per coat

• Pot Life: Approx. 30–40 minutes at 20°C (shorter at higher temperatures)

• Overcoating Interval: Minimum 8 hours, maximum 48 hours at 20°C

• Full Cure: 5–7 days at 20°C

• Chemical Resistance: Good resistance to water, oils, fuels and a range of dilute acids and alkalis

• VOC: Solvent-free

Directions for use 

• Mixing: Combine the two components in the specified 4:1 ratio. Mix thoroughly with a slow-speed drill and paddle until uniform. Only mix what can be applied within the pot life.

• Application Methods: Apply by brush, roller or airless spray. Ensure an even coat and avoid puddling on the surface.

• Environmental Conditions:

  • Substrate and ambient temperature: 10–30°C

  • Surface must be at least 3°C above dew point

  • Maximum relative humidity: 85%

• Overcoating: Apply subsequent coats between 8 and 48 hours at 20°C. If the maximum interval is exceeded, abrade the surface to provide a key.

• Curing: Allow 5–7 days at 20°C for full chemical cure before subjecting to chemical or heavy mechanical exposure.

• Cleaning: Clean tools and equipment immediately after use with AndCoat Thinner or suitable solvent.

• Storage: Store in a cool, dry and well-ventilated location between 5°C and 35°C. Keep away from direct sunlight.

Data Sheets

AndPrime Impregnation Primer - TDS