3M 7000049436 Dual Lock Reclosable Fastener 1 in X 45 Yd

Product Description

The 3M 7000049436 is a black Dual Lock reclosable fastener supplied on a 45-yard roll, 1 inch wide. It uses a modified acrylic adhesive backing over a black polypropylene mushroom-stem surface rated at 250 stems per square inch. Engaged thickness measures 0.24 inches, and the fastener is rated for 1,000 closure cycles. Temperature resistance reaches 180 degrees F, making it suitable for medium-temperature applications in both indoor and outdoor environments. Licensed HVAC, electrical, and general trade professionals use this product for panel attachment, wire management, and component mounting where a tool-free reclosable bond is needed.

This fastener is well-suited for residential and light commercial applications where a clean, repositionable mechanical bond is preferred over screws or permanent adhesive. It adheres to many common substrates including polyethylene, acrylic, polycarbonate, and ABS plastics, as well as powder-coated paint surfaces and medium to low surface energy materials. Typical installations include securing access panels, attaching signage, organizing wiring harnesses, and mounting lightweight enclosures or covers in HVAC, electrical, and general trade service work.

Key Features

• 250 mushroom stems per square inch for a firm, even interlock across the bond area
• Modified acrylic adhesive backing bonds to a wide range of plastics and coated surfaces
• Rated for 1,000 closure cycles, supporting repeated open-and-close service access
• Temperature resistance to 180 degrees F for medium-temperature indoor and outdoor use
• 0.24-inch engaged thickness keeps mated surfaces flush with minimal standoff
• Black polypropylene construction resists moisture and UV exposure for outdoor durability

Compatibility

Compatible with polyethylene, acrylic, polycarbonate, and ABS plastics, powder-coated paints, and medium to low surface energy materials in indoor and outdoor installations.

Installation Notes

Surface preparation is critical — clean and dry the substrate before applying the adhesive-backed fastener to ensure full bond strength. Apply firm, even pressure across the entire strip after placement to activate the acrylic adhesive. Mate the opposing Dual Lock strip by pressing both surfaces together until the stems engage with an audible click. Allow adequate dwell time after initial application before subjecting the bond to shear or peel loads.

Technical Specifications

• Stem Density: 250 stems per square inch
• Engaged Thickness: 0.24 inches
• Closure Life: 1,000 cycles
• Temperature Resistance: 180 degrees F
• Width: 1 inch
• Length: 45 yards per roll
• Color: Black
• Backing Adhesive: Modified acrylic
• Base Material: Polypropylene
• Unit of Measure: Roll
• Weight: 5 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000049436