3M Bumpon SJ5300 BL Transparent Self-Adhesive Protective Bumper Set (100 pcs: 50x SJ5302 7.9mm, 30x SJ5312 12.7mm, 20x SJ5344 19.1mm)

In workshops and on production lines, small vibrations and sliding parts can cause noise, scratches, and misalignment. The 3M Bumpon SJ5300 BL set provides a practical solution: a transparent, self-adhesive polyurethane bumper assortment that absorbs shock, prevents slipping, and protects surfaces. The set includes 100 hemispherical bumpers in three sizes—50 pieces of SJ5302 (7.9 mm diameter, 2.2 mm height), 30 pieces of SJ5312 (12.7 mm diameter, 3.6 mm height), and 20 pieces of SJ5344 (19.1 mm diameter, 7.6 mm height). Each bumper features an acrylic adhesive backing for secure attachment to clean, dry surfaces.

Key specifications

• Material: Polyurethane
• Adhesive type: Acrylic
• Colour: Transparent
• Shape: Hemispherical
• Total pieces: 100
• Set composition: 50x SJ5302 (7.9 mm x 2.2 mm), 30x SJ5312 (12.7 mm x 3.6 mm), 20x SJ5344 (19.1 mm x 7.6 mm)
• Operating temperature range: -34°C to 65°C

Why choose it

The transparent polyurethane material blends discreetly with most surfaces, while the hemispherical shape provides a low-profile cushion. The acrylic adhesive offers reliable bonding on metal, glass, plastic, and painted surfaces. The mixed set covers a range of contact areas and load requirements, making it versatile for prototyping or maintenance tasks.

Ideal use cases

• Anti-slip feet for small appliances, electronics, or office equipment
• Vibration damping for panels, enclosures, or machinery
• Spacers to maintain clearance between components
• Surface protection on furniture, cabinets, or glass tops
• Noise reduction for doors, drawers, or lids

Good to know

For best adhesion, clean the surface with isopropyl alcohol and allow it to dry before applying the bumper. The bumpers are RoHS compliant and suitable for indoor use within the specified temperature range.