Product Data Sheet
|07 13 26
DATA SHEET 7100-552
MEL-PRIME W/B water-based adhesive is a ready-to-use compound specifically formulated with polymers in a true water-based emulsion.
Apply MEL-PRIME W/B to simultaneously prepare and dustproof new, existing, vertical, and horizontal surfaces in one easy, economical operation. MEL-PRIME W/B is designed to condition surfaces that receive waterproofing and air and vapor barrier products from W. R. MEADOWS. Use MEL-PRIME W/B to condition all concrete surfaces to receive applications of MEL-DEK™, MEL-ROL®, and/or AIR-SHIELD™ from W. R. MEADOWS.
- Ready to use.
- Easy to apply/No harmful odours.
- Brown to blackish in colour and turns to full black after curing for easy, visible identification of coverage area.
- Provides durable, strong adhesion.
- Compatible with full line of W. R. MEADOWS building envelope products.
- Ideal for conditioning new, existing, horizontal, vertical, interior, and exterior concrete surfaces.
- VOC compliant.
3.8 Litre (1 U.S. Gallon) Units
18.9 Litre (5 U.S. Gallon) Pails
3.69 – 4.92 m²/L (150 – 200 ft.²/U.S. gallon)
When stored indoors in original, unopened containers at temperatures between 4° – 32° C, optimum performance and best use is obtained within six months of date of manufacture.
- Complies with Canada VOC Concentration Limits for Architectural Coatings Regulations.
Surface Preparation … Concrete should 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.
Mixing … Product requires thorough mixing prior to application.
Application Method … Apply MEL-PRIME W/B in fair weather when the surface and air temperatures are 4° C and rising. Apply with a sprayer, roller, or brush. Condition only the area to be covered with the product 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. Please contact W. R. MEADOWS Technical Services if spraying for proper recommendations. Only specific sprayers will work with the product. Hand-pump sprayers are not recommended for application.
Drying Time … Dries in approximately one hour, depending on temperature and application rate. Surface must be tacky to the touch before covering. If the work area is very dusty, apply membrane as soon as possible after MEL-PRIME W/B is dry.
Cleanup … Application equipment can be cleaned with soap and water before the MEL-PRIME W/B dries. Once dry, equipment can be cleaned with mineral spirits.
Do not apply MEL-PRIME W/B when rain is imminent, on frozen or frost-covered surfaces, or when surface and air temperatures are below 4° C. Avoid allowing MEL-PRIME W/B to puddle — this will lengthen drying time. Do not dilute; use as is. KEEP FROM FREEZING. Refer to Safety Data Sheet for complete health and safety information.
MASTERFORMAT NUMBER AND TITLE
07 13 53 – Elastomeric Sheet Waterproofing
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