3 Dual Lock Low Profile Reclosable Fasteners SJ4570 Clear SJ4575 Black Technical Data July, 2009 Product Description 3M Dual Lock Low Profile Reclosable Fasteners SJ4570 and SJ4575 can replace conventional fasteners, such as screws, clips, rivets, snaps, hook and loop and bolts in many applications where access or repositioning is needed. Dual Lock low profile reclosable fasteners consist of continuous strips of plastic backing, with tiny plastic mushroom shaped stems protruding up from the backing strip. When two pieces of 3M Dual Lock Low Profile Reclosable Fasteners are pressed together, the mushroom heads interlock with one another creating an audible snap, indicating the fastener is engaged. The Dual Lock low profile reclosable fastener is thinner allowing it to be more flexible than similar reclosable fasteners. The Dual Lock low profile reclosable fastener SJ4570 is a clear fastener offering transparent properties to allow color and patterns to visibly show through giving the fastener an almost invisible appearance. The Dual Lock low profile reclosable fastener SJ4575 is black in color and gives a definite presence for when you want to see your fastener or have it blend in with a dark background. The Dual Lock low profile reclosable fasteners offer intermediate strength between regular 3M Dual Lock and 3M Scotchmate Reclosable Fasteners, with all of the advantages of a self-mating product. Product Construction Product 3M Dual Lock Low Profile Reclosable Fastener SJ4570 SJ4575 Material of Construction: Polypropylene Backing Color: Clear Black Adhesive: Color: Clear Type: 300 LSE (Acrylic) Liner Type: 6.5 mil 86 Polycoated Kraft Note: The following technical information and data should be considered representative Typical Physical or typical only and should not be used for specification purposes. Properties and Performance 2 2 Weight, ounce/1 in. (grams/cm ): 0.012 (0.044) Characteristics Operating Temperature Range: -20F (29C) and up to 158F (70C) Inch (mm) 15% without Liner: Single Thickness .0645 (1.63) Engaged Thickness .0910 (2.31) Plasticizer Resistance: No Closure Cycle Life: 100 - 150 Cycle Life is the number of cycles (openings and closings) that the fastener is subjected to while maintaining 50% of the original values for tensile.TM TM 3M Dual Lock Low Profile Reclosable Fasteners SJ4570 Clear SJ4575 Black Typical Performance Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Characteristics (Closure Performance) Dynamic Tensile Engagement 2 Strength, lbs/sq. inch (kNewtons/m ): 26 (179) Dynamic Tensile Disengagement 2 Strength, lbs/sq. inch (kNewtons/m ): 42 (289) Dynamic Shear (1 x 1 overlap) 2 Strength, lbs/sq. inch (kNewtons/m ): 32 (220) 90 Angle T-Peel Lbs/inch width (N/cm) 1.2 (2.1) 2 2 Lbs./sq. in. (g/cm ) Lbs./sq. in. (g/cm ) Static Shear Holding Power on Stainless Steel 2.2 (70.3) 1.1 (35.2) - at -20F: 10,000 minutes 10,000 minutes - at 72F/50% relative humidity: 10,000 minutes 10,000 minutes - at 158F: NA 10,000 minutes Static Tensile Holding Power on aluminum - at -20F: 10,000 minutes 10,000 minutes - at 72F/50% relative humidity: 10,000 minutes 10,000 minutes - at 158F: NA 10,000 minutes (Adhesive Performance) To Stainless Steel To Polypropylene To ABS 90 Angle Peel Adhesion: Lbs/inch width (N/cm) - initial (1 minute dwell): 6.0 (10.5) 3.5 (6.1) 6.0 (10.5) - after 1 week at 72F/50% relative humidity: 8.0 (14.0) 7.0 (12.3) 8.0 (14.0) - after 1 week at 158F: 7.0 (12.3) 5.0 (8.8) 5.0 (8.8) - after 1 week at 100F/100% relative humidity: 5.0 (8.8) 6.0 (10.5) 6.0 (10.5) Peeled at the rate of 12 inches (305 mm) per minute. Note: In long term static load applications, conditions such as temperature variation, jarring, vibration, etc., can affect long term performance. The user should design the amount of fastening area based on the specific conditions in the application. Four square inches of fastening area per pound of static load is suggested as a starting point for such evaluations. Possible Widths Available Sizes (inches 1/16 ): Standard Roll Length: 5/8 50 yds 1 50 yds 2 50 yds 4 50 yds & 75 yds Maximum 6 75 yds - 2 -