Epo Primer F may be used as it is or mixed with Quartz 0.5 to improve adhesion of resin coating systems and even out surfaces. Thanks to its special formulation, Epo Primer F is characterised by its ability to penetrate into substrates and may even be applied on moderately damp surfaces.
Field of Application
· Adhesion promoter for epoxy and polyurethane coating products in general.
· Adhesion promoter for self-leveling and multi-layered coating products.
· Adhesion promoter for flooring made from synthetic mortar.
· Fluid adhesive to seal cracks and make structural bonds.
COVERAGE / CONSUMPTION
Preparation of substrate
The surface of concrete floors must be preferably dry or slightly damp, clean and sound and have no crumbling or detached portions. The substrate concrete must have a compressive strength of at least 25 N/mm² and a minimum tensile strength of 1.5 N/mm². The strength of the substrate must also be suitable for its final use and the types of load to which it will be subjected. The level of moisture in the substrate must be a maximum of 4% and there must be no capillary rising damp. The surface of the floor must be prepared with a suitable mechanical process to remove all traces of dirt, cement laitance and crumbling or detached portions, and to make the surface slightly rough and absorbent. Concrete surfaces impregnated with oil and grease must be thoroughly cleaned with a 10% solution of water and soda or detersive soap and then rinsed several times with plenty of clean water. Remove any water from the surface and wait until the level of residual moisture is no higher than 4%. If the oil or grease has penetrated deeper into the substrate, on the other hand, all the affected concrete must be removed by scarifying and repaired with a three-component epoxy mortar.
Preparing the product
The two components must be mixed together just before application. Mix component A thoroughly and add the contents of component B. Add up to 50% by weight of quartz sand. Mix again with an electric mixer at low speed to prevent entraining air into the mix for at least 2 minutes until the mix is completely blended. Apply the mix within the pot life indicated. Higher surrounding temperatures will reduce the pot life of the mix, while lower temperatures will increase its pot life.
Applying the product
Apply a coat of neat Epo Primer F or mixed with Quartz 0.5 on the substrate after it has been prepared as specified with a straight trowel. Then broadcast with Quartz 0.5 – according to the kind of system to be realized – to ensure the next coat of resin adheres perfectly. Make sure there are no open pores in the surface of the substrate, otherwise air bubbles could escape from the substrate and form pinholes in the coating system to be applied. This is particularly important when applying self-leveling resin or cementitious systems.