From the Manufacturer
This trial bag includes a 10 ft. mated strip of 400/170 stem density, a combination proven successful for a majority of indoor and outdoor applications. This Dual Lock product uses durable acrylic adhesive to bond strongly to metals, glass, some plastics and painted surfaces. The adhesive sticks quickly and reaches full strength after 72 hours. 3M Dual Lock Reclosable Fastener TB3551/TB3552 is great for indoor and outdoor applications which include attaching doors, access panels, signs, cushions and headliners. Recommended for use at temperatures ranging from -20°F/-29°C to 200°F/93°C.