3M 7010335375 Dual Lock Reclosable Fastener SJ3872 Black

Product Description

The 3M 7010335375 is a Dual Lock reclosable fastener tape rated at 170 stems per square inch, designed for secure, tool-free fastening across a wide range of indoor and outdoor applications. The SJ3872 features a black polypropylene reclosable fastener backing with a modified acrylic pressure-sensitive adhesive on the reverse side. The engaged thickness is 0.24 inches. The fastener is rated for up to 1,000 open-and-close cycles, making it a durable mechanical fastening solution for repeated-access panels, equipment covers, and signage mounting. Temperature resistance extends to 180 degrees F, supporting medium-temperature performance environments.

This fastener tape is suited for residential and commercial installation scenarios where traditional fasteners are impractical or undesirable. It bonds well to many plastics including polyethylene, acrylic, polycarbonate, and ABS, as well as powder-coated painted surfaces and medium to low surface energy materials. Each roll measures 2 inches wide by 45 yards long. Common applications include securing access panels, cable management covers, signage, protective enclosures, and removable equipment mounts in HVAC, electrical, and general trade work.

Key Features

• 170 stems per square inch for firm mechanical engagement
• Up to 1,000 open-and-close cycles for long-term reclosable use
• Modified acrylic adhesive backing for bond to plastics, powder-coated paint, and low surface energy materials
• Temperature resistance to 180 degrees F for medium-temperature environments
• Rated for both indoor and outdoor use
• Black polypropylene construction, 2 inches wide by 45-yard roll format

Compatibility

Compatible with polyethylene, acrylic, polycarbonate, and ABS plastics, as well as powder-coated painted surfaces and medium to low surface energy materials. Suitable for indoor and outdoor use.

Installation Notes

Surface should be clean, dry, and free of oils or dust before applying the adhesive side of the tape. Apply firm pressure across the full tape length to ensure full adhesive contact with the substrate. Allow adequate dwell time at room temperature before applying load or closing the fastener. No tools are required for installation or repeated opening and closing of the fastener.