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MEL-PRIME™ is a solvent-based, ready-to-use adhesive designed to prepare surfaces for W. R. MEADOWS waterproofing and air/vapor barrier systems such as MEL-ROL®, PRECON™, MEL-DEK™, and AIR-SHIELD™. It helps improve adhesion by sealing and dustproofing concrete, masonry, and metal surfaces in one simple step.
This high-solids primer is easy to apply by roller or brush, works on both vertical and horizontal surfaces, and requires no mixing or dilution. Ideal for exterior use, MEL-PRIME ensures a clean, prepared surface for optimal membrane bonding and long-lasting performance.
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MEL-PRIME™
Solvent-Based VOC Adhesive
DESCRIPTION
MEL-PRIME is a solvent-based, ready-to-use adhesive for W. R. MEADOWS membrane systems. It is red to reddish-brown in color.
USES
MEL-PRIME simultaneously prepares and dustproofs new and old and vertical and horizontal surfaces in one easy, economical operation. MEL-PRIME is designed for surfaces to receive waterproofing and air/vapor barrier systems from W. R. MEADOWS. Use MEL-PRIME on surfaces to receive applications of MEL-ROL®, PRECON™, MEL-DEK™, AIR-SHIELD™, and/or AIR-SHIELD THRU-WALL FLASHING from W. R. MEADOWS.
FEATURES/BENEFITS
- High solids for optimum performance.
- Ready to use … no mixing or dilution required.
- For exterior vertical and horizontal applications.
PACKAGING
1 Gallon (3.79 Liter) Can
5 Gallon (18.9 Liter) Pail
COVERAGE
250 to 300 sq. ft./gal. (6.14 to 7.37 sq. m/L)
SHELF LIFE
Shelf life is three years when stored indoors and in original, unopened containers at temperatures between 40 – 90° F (4 – 32° C).
APPLICATION
Surface Preparation … All surfaces to receive adhesive must be clean, dry, smooth, and free of all voids. Fill all voids and remove sharp protrusions. When used on concrete, concrete should be cured at least 72 hours. For additional substrate surface preparation requirements, see instructions for applying MEL-ROL, PRECON, MEL-DEK, and/or AIR-SHIELD.
NOTE: Metal surfaces must also be clean, dry, and free of loose paint, rust, or other contaminants.
Application Method … Apply MEL-PRIME with a roller or brush at a coverage rate of 250 – 300 ft.2/gal. (6.14 – 7.37 m2/L). Apply only to the area to be covered with the membrane during the working day. Areas not covered with a membrane in 24 hours must be re-applied. MEL-PRIME should be used at temperatures of 10° F (-12° C) and above for maximum adhesion. Protect the primer from dust, dirt, or any other contaminants that will cause a decrease in adhesion.
Drying Time … Refer to dry time chart below for guidance. Temperatures above 95° F (35 °C) will only result in a nominal decrease in dry time. The dry time for primers is defined as the point at which the surface becomes sticky/tacky.
Cleanup … MEL-PRIME may be cleaned with mineral spirits.
LIMITATIONS/PRECAUTIONS
Do not apply MEL-PRIME when rain is imminent, or on damp or frost-covered surfaces. Avoid allowing MEL-PRIME to puddle – this will lengthen drying time. Do not dilute; use as is.
HEALTH HAZARDS
This product is flammable. Ignition sources should be removed prior to product use. Avoid direct contact with the product. Direct contact may cause mild to moderate irritation of the eyes and skin. Product vapors may also cause transient central nervous system depression. Refer to Safety Data Sheet for complete health and safety information.
2025-11
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