PC-Prime® AC

Water Based Penetrating Primer

PACKAGING

PC-Prime AC are 20 KG pails .

PC-Prime ®AC is a versatile single-component primer designed for use with elastomeric membrane-forming materials. The product is meticulously formulated using selective polymers to create a continuous base-coating that complements the likes of PC-Sealcoat® type membrane systems, with its primary function being to enhance bonding between the substrate and membrane. Additionally, it serves as a protective coating that safeguards concrete, masonry, and metal structures from corrosive soil salts and subsurface water ingress. Once dry, it forms an impenetrable, seamless, and waterproof membrane.

ADVANTAGES

Simple application, can be applied with brush or roller on site.
Exceptional resistance to carbon dioxide, acid rain, and alkali solutions.
Superb water resistance Eco-friendly product – contains No Volatile Organic Compounds (VOCs).
Strong adhesion with concrete and masonry.

AREAS OF APPLICATION

This product serves as a high-performance primer for waterbased, anti-carbonation, and waterproof polymer coatings, making it suitable for use on various surfaces like bridge decks, underpasses, building walls, and roofs. It is also an ideal sealer coat for industrial floors and interior/exterior walls. Additionally, it enhances the performance of high-end decorative and protective coatings when used as a primer.

SURFACE PREPARATION

For the successful application of PC-Prime® AC, it’s crucial to prepare all surfaces thoroughly to avoid failure. This involves cleaning the surface free of any dust, foreign materials, loose particles, or contaminants that could impede the bond between the original substrate and the primer system. To
achieve this, methods such as scarification, grinding, water blasting, sandblasting, acid washing, or any other approved technique can be utilized. In cases where depressions or honeycombs are present, they should be rectified using PCConrend® mortar, a mixture of 1 part PC-Conbond®SBR , 2
parts cement, and 4 parts medium washed sand. The surface should be left for at least 24 hours before applying the primer.

CRACK TREATMENT

In the event of any cracks measuring up to 2 mm, utilize a vacuum cleaner to ensure the area is free of debris. Apply PCPrime®AC to the exposed cracks, followed by a coating of PCPrime®AC along the crack line. Allow the area to dry overnight.

IMPORTANT CONSIDERATIONS

Reinforcement rods and other sharp materials should not be dragged over the primed surface, as this can puncture the same.
PC-Prime® AC shall always be used without dilution. There should not be any rain during and after application of final coating for at least 6-8 hours.
Not suitable for continuous immersion like basements, water tanks/reservoirs and any other liquid storage tanks.

MIXING AND APPLICATIONS

Although PC-Prime® AC has excellent adhesion properties with building materials such as cement, concrete, mortar, bricks, and wood, the application of PC-Prime® AC will enhance the performance of the final coating system. Prior to application, ensure the primer is stirred well, and apply it on the dry surface with a soft nylon brush or roller. In most cases, one coat of primer should suffice. However, if the surface is excessively porous, it is recommended to apply two coats of primer. Allow a 2-4 hour time gap between the application of each coat. While this water-based
product can be applied on slightly damp surfaces, it is recommended to apply the primer on a dry surface for optimum performance.