3 Bumpon Protective Products TM Top Hat Design SJ-6115 * SJ-6125 FOD #1542 page 1 of 6 Technical Data November 12, 1998 Supersedes October 1, 1998 Product Description SJ-6115 and SJ-6125 Bumpon products are pressure-sensitive adhesive-backed polyurethane products that can be used as feet, stops, spacers, and protectors in many applications. Brim Brim B C C B A A Product SJ-6115 SJ-6125 Crown Shape cylindrical hemisphere Color black black Pad Form, matrix 5x8 5x8 Dimensions A - Diameter of Brim, inches (mm) 0.625 (15.9) 0.625 (15.9) B - Height of Brim, inches (mm) 0.093 (2.36) 0.093 (2.36) C - Total Height, inches (mm) 0.187 (4.75) 0.250 (6.35) Dimension Tolerances - Diameter 0.005 inches ( 0.13 mm), Height 0.015 inches ( 0.38 mm) measured without the adhesive liner. Advantages of Top Hat Design * Ideal for many permanent applications * Virtually impossible to remove when attached in recess cavity * Extremely difficult to remove when not attached in recess cavity Top Hat Design Product Selection Considerations The point of contact provides either a large contact area or a very small (point) contact area depending on the shape of the Crown of the Bumpon product. Point of Contact Cylindrical Crown * Increased load capacity. * Better wear resistance. Point of Contact Hemisphere Crown * Increased sound dampening. * Increased energy absorption. 3M Bumpon Protective Products TM TM FOD #1542 page 2 of 6 Top Hat Design SJ-6115 * SJ-6125 Product Construction Elastomer polyurethane Adhesive* synthetic rubber (R-25) *Synthetic Rubber (R-25) - This very high tack adhesive system provides excellent initial adhesion and has the capability of providing excellent adhesion to a wide variety of surfaces including many low surface energy surfaces such as polypropylene and polyethylene. Typical Physical Properties 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 6100 Series Product Hardness, Shore A ASTM-D-2240 70 Approximate Density, lb./ft.3 (gm/cm3) 80 (1.3) Resilience, % ASTM-D-2632 (0.125 in. sample) Kinetic Coefficient of Friction* ASTM-D-1894 Stainless Steel Glass Formica(R) laminate Wood 28-34 >1 >1 0.9 - 1.4 0.9 - 1.4 *Two important laws of friction applicable to Bumpon rollstock are: (1) Friction is independent of the area of contact between solids and (2) Friction is proportional to the load between solid surfaces. Thus, if the load (weight) is doubled, the force required is to cause surface sliding is also doubled. This is expressed mathematically as follows: Sliding force = (kinetic coefficient of friction) x (weight) Abrasion Resistance Taber H 18, 1 kg, g/1000 cycles Tensile lb./in.2 (kPa) Elongation, % Dielectric Strength, volts/mil ASTM-C-501 1.7 - 1.9 ASTM-D-412, Die A 600 (4140) ASTM-D-412, Die A 100 ASTM-D-1000 200 Stain Resistance 3M - 24 hrs. @ 158F against white paint, 7 days exposed UV no staining observed Solvent and Fuel Resistance 3M - 24 hr. immersion 5% Detergent in water no apparent effect 25% Ammonia in water no apparent effect Bleach no apparent effect Hydrochloric Acid no apparent effect (1 Normal Solution) Diesel Fuel no apparent effect Auto Oil no apparent effect Isopropyl Alcohol slight effect (swelling) Heptane slight effect (swelling) Toluol considerable effect (swelling) Lacquer Thinner considerable effect (swelling) Flammability Listing UL-94HB Pass; UL recognized (color black only) 3M Bumpon Protective Products TM TM FOD #1542 page 3 of 6 Top Hat Design SJ-6115 * SJ-6125 Relative Adhesive Performance Characteristics The following table provides relative adhesive performance characteristics of the synthetic rubber (R-25) adhesive system used in the construction of SJ-6115 and SJ-6125 Bumpon products in comparison to the standard R-30 and A-20 Bumpon adhesive systems used in the construction of the 5000, 5500, 5300, and 5400 Series Bumpon Bumpon product 5000 Series 5500 Series 5300 Series 5400 Series SJ-6115 SJ-6125 6100 Series Adhesive Natural Rubber R-30 Acrylic A-20 Synthetic Rubber R-25 Good Good Poor Good Excellent Excellent Static Shear 75F 120F 158F Excellent Fair Poor Excellent Excellent Excellent Excellent Good Fair Impact Resistance Low Surface Energy High Surface Energy Excellent Excellent Poor Good Good Good Dynamic Shear Good Excellent Good Initial Adhesion Low Surface Energy High Surface Energy Good Good Poor Fair Excellent Excellent Adhesion Buildup Some Gradual Some Solvent Resistance Good Excellent Good Age Life Good Excellent Good Adhesion (Peel) Low Surface Energy High Surface Energy Application To obtain maximum adhesion, surfaces must be unified, dry, and free of contaminants. Clean surfaces with low strength solvents such as isopropyl alcohol (rubbing alcohol) or heptane.* Apply firm pressure to help increase the contact of the adhesive with the substrate. Allow time (dwell) to increase adhesion. Application Temperature: +40F (5C) to 125F (52C). *Note: Be sure to follow the manufacturer's precautions and directions for use when using solvents. Service Temperature -30F (-34C) to 150F (66C); 225F (107C) intermittent exposure. Environmental Performance Bumpon products are intended for interior applications where resilience and other physical properties will remain unchanged. Exposure to UV light for extended periods may cause slight discoloration or yellowing. Bumpon products may be used outdoors in a protected area with possible discoloration and chalking. Simultaneous exposure to high humidity and temperature may degrade (soften) the product composition. Shelf Life Shelf life is 18 months from date of manufacture when stored in original cartons at 60-80F (15-27C) and 40-50% relative humidity. 3M Bumpon Protective Products TM TM FOD #1542 page 4 of 6 Top Hat Design SJ-6115 * SJ-6125 Adhesive Stress - Top Hat Design versus Standard Design Adhesive Stress... Top Hat Design Tensile Cleavage Bumpon product shown in recess cavity Adhesive Stress... Standard Design Cleavage Peel Bumpon product shown in recess cavity Top Hat Design versus Standard Design - Note from the diagram that the adhesive stress on the Top Hat design is a combination of tensile and cleavage versus the adhesive stress on the standard design which is a combination of cleavage and peel. As a result of the Top Hat design which decreases leverage, more of the adhesive is contributing to the overall strength at one time. Adhesive Stress - Types and Definitions Tensile: Forces are perpendicular to the bond plane. Stress is distributed over the entire bond area. All the adhesive contributes to the bond strength. Cleavage: Forces are concentrated at the edge of the bond. Not all the bond area is contributing to the overall strength at one time. Peel: Forces are confined to the edge of the bond. At least one surface is flexible. Even less adhesive contributes to the bond strength than in cleavage. Shear: Forces are parallel to the bond plane. As with tensile, stress is distributed over the entire bond area. Shear is typically not a factor when Bumpon products are attached in a recess cavity. Benefits of Providing Recess * * * * Improves adhesive performance - shear strength and impact absorption. Provides neat appearance. Provides target area for Bumpon product during production. Provides uniform location. RECESS - donut type RECESS - concave type To obtain best results with the Top Hat Design Products, the depth of the recess cavity should be equal to or slightly deeper than the height of the brim of the Bumpon product. 3M Bumpon Protective Products TM TM FOD #1542 page 5 of 6 Top Hat Design SJ-6115 * SJ-6125 Compression Force Deflection Curves 50 Load, lbs. 40 30 SJ-6125 Product SJ-6115 Product 20 10 0 0 20 40 60 80 100 Deflection, mils Load Tolerance Custom Top Hat Design Products through the Design-A-Bump Program The recommended maximum loads which SJ-6115 and SJ-6125 Bumpon products will support under a continuous load are 15 lbs. and 10 lbs., respectively, per Bumpon product. Custom Shapes 3M can customize Top Hat Design Products for your specific requirements. Top Hat Design Custom Shape slightly Suggestions If the product is placed in a recessed cavity: * The depth of the recess cavity should be equal to or deeper than the height of the brim of the Bumpon product. * The base diameter of the crown should be approximately 60-80% of the diameter of the brim of the Bumpon product. Custom Colors 3M can match most colors to your specifications. Top Hat Design Dimension tolerances for Top Hat Design Products are Dimension Tolerances as follows: Crown Brim C B D A A B C D Diameter of Brim, inches (mm) Height of Brim, inches (mm) Height of Crown, inches (mm) Total Height, inches (mm) 0.005 (0.13) 0.015 (0.38) 0.005 (0.13) 0.015 (0.38) Note: Custom Design-A-Bump products may require a qualifying minimum order quantity and a one-time set-up charge. Call your local 3M Industrial Tape and Specialties Division Sales Representative for more information about capabilities and special requirements of the Design-A-Bump Program. 3M Bumpon Protective Products TM TM FOD #1542 page 6 of 6 Top Hat Design SJ-6115 * SJ-6125 Technical Information and Data The technical information and data, recommendations, and other statements provided are based on tests or experience which 3M believes to be reliable, but the accuracy or completeness of such information is not guaranteed. Product Use Please remember that many factors can affect the use and performance of a 3M product in a particular application. The materials to be bonded with the product, the surface preparation of those materials, the product selected for use, the conditions in which th product is used, and the time and environmental conditions in which the product is expected to perform are among the many factors that can affect the use and performance of a 3M product. Given the variety of factors that can affect the use and performance of a 3M product, some of which are uniquely within the user's knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user's method of application. Warranty and Limited Remedy The 3M product will be free from defects in material and manufacture for a period of one (1) year form the date of manufacture. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user's method of application. If the 3M product is defective within the warranty period stated above, your exclusive remedy and 3M's sole obligation shall be, at 3M's option, to replace or repair the 3M product or refund the purchase price of the 3M product. Limitation of Remedies and Liability Except where prohibited by law, 3M will not be liable for any loss or damage arising form the 3M product, whether direct, indirect, special, incidental, or consequential, regardless of the legal theory asserted, including contract, warranty, negligence, or strict liability. 3 Industrial Tape and Specialties Division 3M Center, Building 220-7W-03 St. Paul, MN 55144-1000 USA 1 800 362 3550 1 800 223 7427 Fax On Demand www.3M.com Formica is a trademark of Formica Corporation. Bumpon is a trademark of 3M. (c)3M 1998 70-0709-1084-2