3M Scotch SJ Series Bumpon Self-Adhesive Bumpers: 0.3 in. thick x 0.81 in. wide (Black)

3M Bumpon SJ Series Self-Adhesive Bumpers are pressure sensitive adhesive-backed polyurethane products that can be used as feet, stops, spacers and protectors in many applications. The urethane is a durable, resilient elastomer. The aggressive, high tack pressure sensitive adhesive is protected with a release liner making application fast and easy. The plasticizer-free urethane composition of the bumpons exhibits excellent skid resistance, long aging resiliency (will not crack or harden), abrasion resistance and resistance to marring and staining. Use 3M Bumpons almost anywhere slamming, scratching, nicking, scuffing, marring, sliding, vibration, or noise could be a problem for your product.

• Feet on the bottom of blenders, desk top calculators, electronic cabinetry, telephones, keyboards, foot pedals, scales, clocks, speakers, dispensers and computers.
• Stops for cabinet doors, lids and drawers.
• Spacers for picture frames to provide alignment; for auto glass as an aid in assembly.
• Protectors for stacked glass and metal sheets.

The tapered square bumpers are typically used for larger appliances and electronics while the smaller hemisphere and cylindrical shaped bumpons are usually used for phones, speakers and keyboards. The hexagon shaped bumpons are made from soft foam rollstock and are used in woodworking where a softer material is preferred. The quiet bumpons have a hexagonal cone shape and are ideal for use on cabinets and drawer fronts.

Adhesive | Description |
A-20 | Acrylic, excellent shear strength properties, good on high surface energy substrates like metal, glass and high surface energy plastics. |
R-25 | Synthetic Rubber, very high tack adhesive, excellent initial adhesion, works best on low like textured or powder-coated paint and polypropylene. |
R-30 | Natural Rubber, high tack, good initial adhesion, also good for low surface energy substrates, versatile adhesive that works well on most surfaces. |

Product | Color | Shape | Width x Height | Adhesive | Example Application | Bumpons Per Pack | Packaging |
SJ5302 | clear | hemisphere | 0.312 in. x 0.085 in. | A-20 | mobile handhelds/organizers | 96 | retail-pack |
SJ5376 | clear | cylindrical | 0.315 in. x 0.11 in. | A-20 | trophy and award feet | 56 | *** not retail-packed |
SJ5306 | clear | hemisphere | 0.375 in. x 0.15 in. | A-20 | trophy and award feet | 96 | *** not retail-packed |
SJ6553 | clear (quiet) | hexagon base, cone top | 0.433 in. x 0.120 in. | R-25 | cabinet doors & drawers | 132 | retail-pack |
SJ5201 | light brown | hexagon | 0.433 in. x 0.125 in. | R-25 | inside door frame stops | 132 | retail-pack |
SJ5312 | clear | cylindrical | 0.50 in. x 0.140 in. | A-20 | picture frames | 56 | retail-pack |
SJ5412 | white | cylindrical | 0.50 in. x 0.140 in. | A-20 | picture frames | 56 | retail-pack |
SJ5023 | black | tapered square | 0.81 in. x 0.3 in. | R-30 | coffee maker feet | 36 | *** not retail-packed |
SJ5009 | black | cylindrical shape, concave top | 0.88 in. x 0.4 in. | R-30 | small kitchen appliance feet | 24 | *** not retail-packed |

1. Apply to any smooth, flat surface such as glass, metal, wood, smooth plaster, tile, etc.
2. For best results surfaces must be clean and dry. Clean with a low strength solvent like isopropyl alcohol (rubbing alcohol) or heptane (white gas) with a clean cloth.
3. Do not attempt to use on fabric, course concrete walls, rough sand finishes, loose paint or rough wallpaper.
4. Remove paper liner from back of bumper. Avoid touching adhesive with fingers. Place bumper on desired location and press firmly to insure contact of adhesive.