BestPrimer EP603

BestPrimer EP603 is used in special cases such as damp areas, newly cast concrete (after 24 hours), or surfaces contaminated with oil and grease where drying is not feasible, moisture cannot be effectively controlled, or oil contamination cannot be removed - such as basement slabs and walls, water tanks, swimming pools, existing industrial floors, warehouses, garages, etc.

• Excellent adhesion to substrates with high moisture content or oil/grease contamination.
  Good penetration capability, allowing deep bonding into the substrate.
  High resistance to chemical attack, corrosion and abrasion.
  Easy application using tools such as brushes or short-nap rollers.
  Environmentally friendly.

SURFACE PREPARATION

• The substrate must meet the minimum strength requirements (compressive strength ≥ 20 MPa, tensile strength ≥ 1.5 MPa).

• The surface must be level, sound and 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

Coating system:

• For highly absorbent or weak substrates: apply at least 2 primer coats.

• For dense substrates with moderate roughness: apply 1 coat.

• For polished surfaces: mechanically roughen or treat with BestCleaner FA before applying BestPrimer EP603.

Mixing:

• Before application, components A and B must be thoroughly mixed in the correct ratio using a mixer at 300 - 400 rpm until homogeneous. Apply immediately after mixing.

• Due to the short pot life, it is recommended to pre-cool both components before mixing or divide into smaller batches suitable for the actual application time.

Application:

• Apply BestPrimer EP603 using a stiff brush or short-nap roller with firm strokes over the entire surface at a coverage rate of 0.15–0.25 kg/m² per coat, depending on substrate condition.

Notes:

• Ensure adequate ventilation during application and avoid rain before the material has fully cured.

• Do not use material that has exceeded its pot life.

CLEANING

• Use BestThinner SC01 to clean tools immediately after use and before the coating begins to cure.

SAFETY INSTRUCTIONS

• Both components are not classified as hazardous but are flammable (especially Component B) and may cause allergic reactions on sensitive skin. 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.

• Keep away from fire, sparks and heat sources during application.