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All Seals Incorporated
The Sealing Specialists
2110 S. Yale Street
Santa Ana, CA 92704
Phone: (714) 556-4931
Fax: (714) 557-3257


RUBBER PRODUCTS -3M Bumpons


Bumpers/Grommets
3M Bumpon
Atlantic India Products
Custom Molded and Rubber to Metal

 

 

3M Bumpons

Bumpon Protective Products
Bumpon protective products 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.

Features
Bumpon protective products feature a plasticizer-free urethane composition which exhibits:

  • Excellent skid resistance
  • Long aging resiliency - will not crack or harden
  • Abrasion resistance
  • Resistance to marring and staining

Application Ideas
Used 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.

    Transparent and True White
    Hemisphere
    Cylindrical
    Tapered Square
    Others
    Special Products

Custom Shape and Color
We can match most colors and customize shapes to your specifications. Call us to discuss custom Bumpon products to meet your specific needs.

Adhesives for Special Applications
Foam tape and other special adhesives are available for custom applications.

Special Easy Strip Packaging
Packed into strips or die cut and perforated pads can help simplify some assembly operations. Products currently available:

  • SJ-5518 Die cut and perforated on pads of 64
  • SJ-5523 4 x 1 matrix separated by perforations
  • SJ-5508 Die cut and perforated on pads of 64
  • SJ-5514 4 x 1 matrix separated by perforations

Note: Custom Bumpon products may require a qualifying minimum and/or a one-time set-up charge. Call us for more information.

Environmental Exposure
Colored and transparent Bumpon products are intended for interior applications where resilience and other physical properties will remain unchanged. When exposed to UV light for extended periods some slight discoloration or yellowing may occur.

Bumpon products may be used outdoors in a protected area with some discoloration possible; colored Bumpon products may chalk.

Simulaneous exposure to high humidity and temperature may degrade (soften) the Bumpon product urethane.

Shelf Life
Shelf life is 18 months from date of manufacture when stored in original cartons at 60 - 80 degrees F (15 - 27 degrees C) and 40 - 50% relative humidity.

Bumpon Protective Products
Top-Hat Design
SJ-6115
SJ-6125

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.

Advantages of Top-Hat Design

  • Virtually impossible to remove when attached in recess cavity
  • Ideal for many permanent applications

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.

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

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. Note: Be sure to follow the manufacturer's precautions and directions for use when using solvents. Apply firm pressure to help increase the contact of the adhesive with the substrate. Allow time (dwell) to increase adhesion. Application Temperature: +40 degrees F (5 degrees C) to 125 degrees F (52 degrees C).

Service Temperature
-30 degrees F (-34 degrees C) to 150 degrees F (66 degrees C); 225 degrees F (107 degrees C) 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 60-80 degrees F (15-27 degrees C) and 40 - 50% relative humidity.
  • Adhesive Stress - Types of Definitions
  • Top-Hat Design versus
  • Standard Design

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 plane. Stress is distributed over the entire bond area. All the adhesive contributes to the bond strength.
  • 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.

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.
Custom Top-Hat
Design Products
Through the
Design-A-Bump
Program
Custom Shapes
We can customize Top-Hat Design Products to meet your specific requirements.

Top-Hat Design
Custom Shape Suggestions

To obtain best results with the Top-Hat Deisgn:

  • The product must be attached in a recess cavity.
  • The depth of the recess cavity should be equal to or slightly 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
We can match most colors to your specifications.

Bumpon Protective Products
Resilient Rollstock
6200 Series

Product Description

Bumpon Resilient Rollstock Products are polyurethane sheet materials produced with aggressive pressure sensitive adhesives.
6200 series - 65 durometer polyurethane with a synthetic rubber (R-25) adhesive.
SJ-6232 1/32 in. 0.8 mm
SJ-6216 1/16 in. 1.6 mm
SJ-6208 1/8 in. 3.2 mm

Features

  • Very high tack adhesive system.
  • Can be die cut to a variety of shapes and sizes.
  • Excellent skid-resistance, high coefficient f friction.
  • Excellent resistance to marring or staining.*
  • Long aging resiliency - will not crack or harden.*
  • Excellent cushioning properties.
  • Excellent abrasion resistance.
  • Vibration and shock damping.
  • Easy application - pressure sensitive adhesive backing.

*Resulting from a urethane composition which contains no plasticizers.

Application Ideas

  • Die cut to circles or squares for use as skid-resistant feet on computers, calculators, electric housewares, electronic equipment, desk top equipment, etc.
  • Die cut for gasket application.
  • Skid-resistant surface on floor.
  • Cushions or spacers within electronic devices.
  • Selective masking for sandblast operation.
  • Anti-chafe protection.
  • Door kick pads.
  • Corner protection strips.
  • Roll covering for textile industry and other web feed machinery.

Application Information
Application Temperature: 40 degrees F (5 degrees C) to 125 degrees F (52 degrees C)
Service Temperature: -30 degrees F (-34 degrees C) to 150 degrees F (66 degrees C)
225 degrees F (107 degrees C) intermittent exposure

To obtain maximum adhesion, surfaces must be unified, dry, and free of contaminants. Surface contact is essential to adhesive performance. To maximize contact on a substrate:

Clean surfaces with low strength solvent such as isopropyl alcohol (rubbing alcohol) or heptane. Note: Be sure to follow the solvent manufacturer's precautions and directions for use when using solvents.

Apply firm pressure to help increase the cold flow and contact of the adhesive with the substrate.
Allow time (dwell) to increase the surface contact and adhesion.

Note: Product selection is ultimately the user's responsibility. Users should conduct their own tests under actual use and storage conditions to determine whether product is fit for a particular purpose and user's method of application.


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