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WR Meadows Mel-Prime Mel-Rol Water Based Primer 5 gal

Brand: WR Meadows Mfg#: 5145005
Product#: 525MRMP5
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SPECIAL ORDER ONLY – Call your local branch (see Location link above). MEL-PRIME W/B water-based adhesive is a ready-to-use compound specifically formulated with polymers in a true water-based emulsion. MEL-PRIME W/B appears bright pink in the container a


  • Components work together for positive waterproofing protection
  • Non-combustible
  • Surface must be tacky to the touch before covering
  • Ideal for conditioning new, existing, horizontal, vertical, interior, and exterior concrete surfaces
  • Handles with ease on the jobsite
  • If the work area is very dusty, apply membrane as soon as possible after MEL-PRIME W/B is dry
  • Mixing - product requires thorough mixing prior to application
  • Cleanup - Application equipment can be cleaned with soap and water before MEL-PRIME W/B dries
  • Drying Time - Dries in approximately one hour, depending on temperature and application rate
  • Application Method - Apply MEL-PRIME W/B in fair weather when the surface and air temperatures are 40 deg F (4deg C) and rising. Apply with a sprayer, roller, or brush at a coverage rate of 250 � 350 ft.2/gal. (6.14 � 8.59 m2/L.) Condition only the area to be covered with the product membrane during the working day. Areas not covered with a membrane in 24 hours must be re-conditioned. NOTE: Metal surfaces do not require conditioning; however, they must be clean, dry, and free of loose paint, rust, or other contaminants.
  • Once dry, equipment can be cleaned with mineral spirits
  • Contains fugitive dye for easy visual confirmation of coverage
  • Ready to use no mixing or dilution required
  • Special membrane-to-membrane adhesion provides additional overlap security
  • Available in a low temperature version for use when air and surface temperatures are between 20° F (-7° C) and 60° F (16° C). An extra-low temp version is also available, ideal for application in extra-low temperatures down to 0º F (-18º C)
  • Provides cost-effective, flexible, versatile, dependable, positive waterproofing protection against damaging moisture migration and the infiltration of free water
  • Surface Preparation - Concrete should be cured at least 72 hr, be clean, dry, smooth, and free of all voids. Repair spalled areas, fill all voids, and remove sharp protrusions. For additional surface preparation requirements, see instructions for applying MEL-DEK, MEL-ROL, and/or AIR-SHIELD
  • Meets or exceeds the test requirements of all currently applicable specifications
  • Offers a quick and easy-to-apply system for maximum productivity


  • Brand: WR Meadows
  • Product Line: Mel-Prime
  • Flash Point: 210 deg F
  • Standards: ASTM D 570
  • Application Temperature: 40 deg F
  • VOC Content: 350 g/l
  • Application Method: Sprayer or Roller
  • Odor/Scent: Pleasant
  • Composition: Petroleum Asphalt
  • Packing Type: Pail
  • Flammability Rating: 1
  • Color: Black
  • Functional Cure: 1 hr
  • Capacity: 5 gal
  • Temperature Range: 90 deg F
  • Type: Flexible, Versatile, Dependable
  • Coverage: 250 - 350 sq-ft/gal
  • Media: Dry Chemical, Foam, Water Fog
  • pH Range: 9
  • Form: Solid
  • Base Type: Water
  • Tensile Strength: 5900 psi
  • Drying Time: 1 hr
  • Usage: Provides a Cost-Effective Answer to Properly Waterproof Foundations, Vertical Walls, and Below-Grade Floors in Residential and Commercial Construction