Masonry and Concrete Primer

Reference # 8


This penetrating, clear, thin primer is used to prepare porous, non-painted masonry and concrete for sealing with Topps Seal® and other coatings. ClearSeal™ absorbs and bonds light surface oxidation and forms an initial seal beneath the surface. Prepares oxidized or chalked surfaces so they may be coated over with excellent adhesion by a sealant like Topps Seal. ClearSeal™ applies at approximately one gallon per 100 – 150 sq. feet. The coverage will depend on usage.


  • Primes uncoated masonry/concrete
  • Absorbs and binds slight chalkiness
  • Temporary water repellency


Wet Material Characteristics:

Viscosity water thin
Weight per gallon 7.0 – 7.6
Solids 35%
Flashpoint of solvent 104° F
VOC <550>
Dry to touch @ 77° F 50% RH ~ 1 hour
Service Range -40° – 140° F


Q. When would I use ClearSeal®?
A. ClearSeal® is used to prime uncoated concrete before applying any of the Topps coatings.

Q. Why do I have to prime concrete before coating?
A. This primer prepares porous, non-painted concrete surfaces so that they may be coated over with excellent adhesion.