The Preprime 167 penetrating primer will improve the effectiveness and efficiency of the coating by penetrating and sealing the concrete plus provide an additional bonding coat for your basecoat; improving the service life of the maintenance system. The entire contents of each container (part a and part b) must be mixed together. Add the converter portion to the base portion slowly with continued agitation. Once the two components are mixed you have 4 hours to use it. The Preprime has a very low viscosity (much like water) so usually one gallon will coat over 500 sq ft on properly prepped concrete. It MUST be applied in one thin, wet coat sufficient to completely cover and penetrate the surface. Do not apply heavy coats. There should be NO POOLING, just a thin layer to soak into the concrete. After it has been applied, wait overnight before applying basecoat epoxy. (or wait until the preprime becomes tacky and use spiked shoes to start painting your basecoat). Note: must be topcoated within 72 hours of application.
Reinforces rusty steel, masonry, and aged White-Rusted zinc surfaces
Penetrates surface rust, crevices, back-to-back angles
Penetrates pores and tiny cracks in concrete and masonry surfaces
Cures to a tough, water resistant coating
100% volume solids
Very low viscosity
Low film thickness required
Applies easily by brush, roll, or spray
Limitations of Use: Not recommended for use without a topcoat. Do
not puddle on horizontal surfaces. Do not apply ontop of Joint Fillers. (do not apply this product over Sikaflex 1CSL)
Below is a finished example of a dried application of PrePrime 167. Don't be alarmed by the coating looking splotchy. Some spots can appear dry and others may still look wet or tacky.This is exactly how a properly applied thin coat should look. It is deeply penetrating the concrete for you basecoat to get superior adhesion.