PrimeLock Rust Primer


PrimeLock Rust Primer is a water-based rust primer for metal roofs. It inhibits rust and provides a durable surface for our elastomeric roof coatings.


Rusted metal roofs.


  • Fast drying rust primer.
  • Bonds to surface rust and inhibits further corrosion.
  • Tenacious adhesion to various surfaces.
  • Easy to use, non-toxic and VOC-compliant water based primer.


  • 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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Caution: This product is water-based product which will freeze and become unusable at temperatures below 32°F. Suspend all application if conditions prevent a complete cure before sunset, rain, fog, dew or freezing temperatures. 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 Rust Primer

Technical Data

Property Value Test Method
Clean UpWater
Coverage1.00 gal/100SF
Density9.0 ± 0.2 pounds/gallon
Dry TimeDries to touch in 2-3 hours.
Flash PointNone
Packaging5 gallon pail, 55 gallon drum.
Shelf Life12 months @ 40°- 90° F
Viscosity900 ±200 cPBrookfield