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BestPrimer AC406

BestPrimer AC406

Modified polyacrylic primer, one component.

Advantages:

  • High penetration capability allows deep bonding into the substrate.
    Easy application using common tools such as brushes, rollers, or spray equipment.
    Excellent adhesion on cement-based substrates.
    Non-toxic and environmentally friendly.

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BestPrimer AC406

Technical summary

Category

Floorings

Modified polyacrylic primer, one component.

BestPrimer AC406 is a modified polyacrylic based compound, one component, specialized to used in specific application, in order to reinforce the surface, enhance the bonding strength.

Product data

Appearance/ColourMilky white emulsion liquid
Density1.03 ± 0.01 kg/liter (25⁰C)
pH7 ÷ 9
Consumption0.10  ÷ 0.20 kg/m² (depends on surface condition).
Ambient temperature

Minimum: 10⁰C (Above dew point at least 5⁰C)

Maximum: 35⁰C (Maximum permissible relative humidity: 80%).

Mechanical propertySignificantly enhanced adhesion and sealing of the surfaces.
Drying time30 mins @ 25⁰C, in space working place.
PreserveIn a cool, dry place.
Shelf life

12 months (In original, sealed package).

Packaging5kg. 25kg/ can or 210 kg/drum.

Applications

BestPrimer AC406 is used as a primer on concrete or mortar substrates prior to the application of products such as cement-polymer self-leveling mortars, waterproofing compounds, cement-polymer or polyacrylic sealants, polyurethane systems, etc., in areas such as floors, roofs, gutters, terraces, bathrooms, basements, and more.

Advantages

  • High penetration capability allows deep bonding into the substrate.
    Easy application using common tools such as brushes, rollers, or spray equipment.
    Excellent adhesion on cement-based substrates.
    Non-toxic and environmentally friendly.

Application instruction

SURFACE PREPARATION:

General requirements:

  • For highly absorbent or weak substrates: dilute BestPrimer AC406 with clean water (maximum 5%) before application.

  • For dense substrates with moderate roughness: do not dilute with water during application.

Substrate conditions:

  • Concrete (or mortar) must meet compressive and tensile strength requirements suitable for the intended application.

  • The surface must be free from standing water; any ponded areas must be dried using a clean cloth.

  • All contaminants such as debris, dust, oil, grease, algae, and mold must be properly removed.

APPLICATION PROCEDURE:

  • Apply one coat of BestPrimer AC406 over the entire surface using a brush, roller, or spray equipment at a coverage rate of 0.10–0.20 kg/m² (depending on substrate condition). For optimal performance, ensure even distribution and complete coverage without missed areas.

  • Before applying subsequent materials, ensure the primer is fully dry (transparent, hard, and non-tacky).

Notes:

  • Do not allow the product to pond on the surface. After 5–10 minutes, recheck the surface. If areas remain milky (not yet transparent) due to pooling, spread thinly using a roller or brush.

  • Ensure adequate ventilation during application. Stir or shake well before use.

CLEANING:

  • Clean tools immediately after use and before the material cures using water and soap.

SAFETY:

  • BestPrimer AC406 is not classified as hazardous or flammable. However, it may cause irritation to sensitive skin upon prolonged contact.

  • Wear protective gloves, masks, and safety goggles during application.

  • In case of contact with eyes, nose, mouth, etc., rinse immediately with plenty of clean water and seek medical attention at the nearest healthcare facility.

BestPrimer AC406 is a modified polyacrylic based compound, one component, specialized to used in specific application, in order to reinforce the surface, enhance the bonding strength.