PrimeLock MultiSurface


PrimeLock MultiSurface is a quick drying, solvent-based roofing primer.


Seal chalky surfaces such as aged asphalt, single ply or pre-painted steel. May also be used on mildly rusted metal roofs.


  • Fast curing, solvent based rust protection primer, contains rust inhibitors and locks up rust.
  • Penetrates into porous surfaces and provides excellent anchorage and adhesion to various substrates.
  • Dark color absorbs the sun’s heat to accelerate the curing process or to increase roof temperature prior to the application of polyurethane foam.


  • Ready to use. Thinning is not necessary. Mix well before using.
  • Roof must be clean, dry and free of any oil, grease, dirt or loosely adhered coating. 
  • Bare surfaces must be prepared and checked for compatibility.
  • Follow our roof restoration procedures and always perform an adhesion test.
  • Equipment: brush, roller, spreader or 3000psi, 2gpm airless sprayer with a .017 tip.
  • Do not leave coating in spray guns, hoses and pumps for prolonged periods.
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Warning: This product contains solvents. Keep away from open flame, heat or sparks. Pumping equipment should be grounded to avoid accidental ignition due to static sparks. Use only in ventilated areas and provide mechanical ventilation in enclosed spaces. Avoid breathing vapor or mist. Approved (MESA/NIOSH) chemical respirator and protective clothing must be used when exposure can exceed recommended PEL. Fresh air hose masks required for interior applications. Care must be taken to prevent rooftop HVAC from introducing solvent vapor into interior areas. Lexis Coatings must be completely dry before exposing to water or foot traffic. Keep Lexis Coatings containers covered when not in use. Dispose of all containers in accordance with state and local environmental regulations. Keep away from children. If ingested, DO NOT induce vomiting. Call physician immediately.

Product information contained herein are presented in good faith and believed to be reliable. They do not constitute part of our terms and conditions of sale. It is also not a guarantee, either expressed or implied, that the data are correct or that products described are merchantable or fit for a particular purpose as methods of use are beyond our control. Customer should determine the suitability of our materials and installation recommendations before usage. Manufacturer’s sole responsibility shall be to replace that portion of any product that proved to be defective.

PrimeLock MultiSurface

Technical Data

Property Value Test Method
Clean UpXylene
Coverage0.75 - 1.00 gal/100SF
Density7.0 ± 0.2 lbs/gal
Dry TimeDries to touch in 1-2 hours.
Flash Point0° F
Packaging5 gallon pail, 55 gallon drum.
VOCNot Recommended
Shelf Life12 months @ 40°- 90° F
Solids By Weight33% ±2 %ASTM D-1644
Viscosity250 ± 150 cPBrookfield