Technical Data February 2012 3M Bumpon Protective Products Molded Shapes - Easy Slide Series SJ6344 Product Description 3M Bumpon Protective Product SJ6344 is a pressure-sensitive adhesive-backed, molded polyurethane product. The Bumpon SJ6344 is called an Easy Slide Series because it incorporates a special abrasion resistant film in its construction, allowing the Bumpon to be used as a lower friction foot, for heavier product applications. Bumpon Easy Slide Series SJ6344 has a reduced coefficient of friction compared to our standard line of molded or rollstock version Bumpon products. In customer applications where protective anti-skid feet are preferred for heavier electronic or desktop items, but allows some sliding, the Easy Slide SJ6344 provides a unique solution. In cases where items would normally require lifting, Bumpon Easy Slide SJ6344 often allow it to be pushed or pulled slowly across a uniform surface. Bumpon SJ6344 Features Low coefficient of friction, Bumpon Easy Slide for heavier protective foot applications Larger size, cylindrical shape with flat top, provides good stability and load bearing capacity as protective foot Supports up to 40 lbs (18.2 kg) per Bumpon foot (160 lbs or 72.7 kg per four Bumpon feet) Solid polyurethane plus polyester film construction is non-marring and non-staining Excellent abrasion resistance Long aging will not crack or harden 3M R-25 synthetic rubber, pressure-sensitive adhesive system. Quick bonding to variety of application surface materials, including tough to adhere to low surface energy plastics, finishes and coatings Application Ideas Heavier TV or computer monitors, displays or on stands Larger countertop electronic kitchen appliances Other items weighing approximately 5 lbs (2.3 kg) up to 50 lbs (22.7 kg) 3 3M Bumpon Protective Products Molded Shapes - Easy Slide Series SJ6344 3M Bumpon Protective Products Product Construction Easy Slide SJ6344 Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Color: Black Width: inches (mm)* 0.75 (19) 0.005 (0.13) Height: inches (mm)* 0.16 (4.0) 0.015 (0.38) Shape: Cylindrical Form (matrix): 4 x 10 Low Friction Film: Polyester Elastomeric Fill: Polyurethane Adhesive: R-25 synthetic rubber Release Liner: Translucent polyester with printed 3M logo *Note: All dimensions 0.02 inches or 0.05 mm measured without the adhesive liner. Typical Physical Properties and Performance Characteristics Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. Property Test Method Test Results Hardness, Shore M ASTM-D-2240 72 Abrasion Resistance ASTM-C-501 0.02 g/1000 cycles (Taber H18, 1kg) Kinetic Coefficient of Friction: ASTM-D-1894 Glass 0.3 Formica 0.2 Stainless Steel 0.3 Wood 0.2 Flammability Listing UL-94HB Pass UL recognized (color black only) Friction Two important laws of friction applicable to 3M Bumpon Protective Products are: 1. Friction is independent of the area of contact between two solids. 2. Friction is proportional to the load between two solids. Thus, if the load is doubled, the force required to cause sliding is also doubled. This is expressed mathematically as follows: Sliding Force = (Kinetic Coefficient of Friction) x (Load) Slide Force Example Using the mathematical equation given above, the sliding force required to move a 20 lb. computer monitor across a Formica tabletop is calculated as follows: (Please note that the sliding force calculation shows a comparison between standard 3M Bumpon Protective Product SJ5744 and 3M Bumpon Protective Product SJ6344) Bumpon Bumpon SJ5744 SJ6344 Kinetic Coefficient of Friction (COF) 1.1 0.2 Load 20 lbs. 20 lbs. Sliding Force = (COF) x (load) 22 lbs. 4 lbs. Load Tolerance The recommended maximum load which Bumpon SJ6344 will support is 40 lbs. (18 kg) per bumper at 70F (21C) to 150F (66C). Application Temperature 40F (4C) to 125F (52C) Service Temperature -30F (-34C) to 150F (66C) 225F (107C) intermittent exposure. (2)