The technical self-adhesive 3M Dual-Lock fastener consists of mushroom-shaped heads (38 heads/cm2) and acrylic adhesive on the back of the black polypropylene reclosable fastening system. Acrylic adhesive adheres to many plastics, powder coatings, and materials with high and medium surface energy, with little or no surface preparation. This product can be used indoors and outdoors in a wide range of applications; it is ideal for example. for mounting ceilings, access panels, signs, exhibits, protective covers, electronic components, car accessories, etc. Withstands up to 1000 cycles of connection and disconnection. Practical retail packaging: 10 squares 25 x 25 mm in a bag with euro hanger Technical specifications carrier: PP heads adhesive: modified black acrylic total thickness: 3.5 mm number of fastening cycles: 1000 temperature resistance: 82 °C UV resistance: very good moisture resistance: very good chemical resistance: very good