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.
Contact
us today.
Large Inventory, Fast Service.
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