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Polyurethane

The results of the physical test performed on Bumper Specialties' polyurethane material are summarized in the table below. Please note, these tests were performed on hand mixed samples and the values are averaged. Values obtained from machine mixed samples would be better due to improved mixing and reduction or elimination of entrapped air.

The following were test methods done:

Tensile Strength, psi (g/cm2)

• Standard Durometer - 607psi (44,082)
• Soft Durometer – 750spi (52,730)

Elongation, %

• Standard Durometer - 192
• Soft Durometer – 607

Tear Strength pli (g/cm)

• Standard Durometer - 214 (38,216)
• Soft Durometer – 127 (22,680)

Hardness, Shore A

• Standard Durometer – 60-70
• Soft Durometer – 50-55

Bashore Rebound, %

• Standard Durometer - 27
• Soft Durometer – 35

Abrasion Resistance g/1000 cycles Tabor H18, 1kg

• Standard Durometer – 0.016
• Soft Durometer – 0.010

QUV (500 hours)

• Standard Durometer – Slight Yellowing
• Soft Durometer – No Data Available

UL-94 HBF Testing

• Self extinguishing time, seconds – passes 66.6 not heat aged – 72.0 heat aged
• Self extinguishing length, inches – passes 0.62 not heat aged – 0.52 heat aged
• Burn rate, inches per minute – 0.02 not heat aged – no data available

This data is based on laboratory flammability tests and should not be used to predict performance under actual fire conditions. Due to the many varying applications for our products, we recommend performing suitability tests on the original materials before use in each case. Our applications engineering service is available for you to consult.

Adhesive

Application Instructions

To obtain a maximum bond, su:rfaces need to be smooth, non-porous, clean, dry and free of all debris, oils and solvents. Clean the surface with a low strength solvent such as isopropyl alcohol (rubbing alcohol) or heptane. Follow solvent manufacturer's precautionary warnings and suggested handling procedures when using solvents. Bend pad slightly grasping bumper on sides without touching the adhesive. Apply with enough pressure to ensure a complete bond. Allow a dwell time of 24 hours before exposing to heavy force or weight. The composition of this product contains no migratory plasticizers of any kind, which would mar surfaces of contact. Users should evaluate the suitability of our Bumpers for a specific application under actual conditions.

BSI-94 - High Performance Acrylic Adhesive (Must be specified when ordering.)

ADHESIVE TYPE: Solvent Based, Low Temperature, High Shear, Quick Stick

SUBSTRATE: 2 mils polyester substrate on a 90lb release liner, PE coated bleached 2 mils polyester substrate on a 90lb release liner, PE coated, bleached, super bright white Kraft liner.

TYPICAL PROPERTIES

• Static Shear Test – 500+ hours* (PSTC**-07 Procedure A/ASTM***B 3654)
• Quick Tack Stainless Steel – 77 oz/in² (338 g/cm²)
• Peel Adhesion - 64 oz/in (714 g/cm) [PSTC-3** / ASTM*** D 3330]
• Substrate
• Thickness - 2 mils (50 microns)
• Basis Weight - 10,000 in²/lb (142,230 cm²/kg) typical value
• Tensile Strength - 28,000 psi MD (1,900,000 g/cm²)
• Liner
• Thickness – 6.2 mils (158 microns)
• Basis Weight - 92.0 lb (151 g/m²)
• Temperature
• Application - 65°F — 150°F (18°C — 65.6°C)
• End Use - -40°F — 300°F (-40°C — 149°C)
• Substrate Elongation - 120% MD
• Shelf Life - 24 months based on accelerated aging
• Storage - 73.4°F (23°C) and 55% relative humidity

BSI-95 - Aggressive Synthetic Rubber Adhesive (Standard Adhesive)

ADHESIVE TYPE: Solvent Based, High Shear

SUBSTRATE: 2 mils polyester substrate on a 90 lb release liner, PE coated, bleached, super-bright white Kraft liner.

TYPICAL PROPERTIES

• Static Shear Test – 300+ hours* [PSTC**-07 Procedure A / ASTM*** B 3654]
• Quick Tack Stainless Steel – 144 oz/in² (633 g/cm²)
• Peel Adhesion - 160 oz/in (1785 g/cm) [PSTC-3** / ASTM*** D 3330]
• Substrate
• Thickness - 2 mils (50 microns)
• Basis Weight - 10,000 in²/lb (142,230 cm²/kg) typical value
• Tensile Strength - 28,000 psi MD (1,900,000 g/cm²)
• Liner
• Thickness – 6.2 mils (158 microns)
• Basis Weight - 92.0 lb (151 g/m²)
• Temperature
• Application - 65°F — 150°F (18°C — 65.6°C)
• End Use - 0°F — 180°F (-18°C — 82.2°C)
• Substrate Elongation - 120% MD
• Shelf Life - 24 months based on accelerated aging
• Storage - 73.4°F (23°C) and 55% relative humidity

Adhesive testing for the acrylic and synthetic rubber was conducted using a polyester carrier. This information sheet is for typical values and is not a specification. End user assumes the responsibility for suitable testing and approval of this product's functionality. Adhesives are resistant to water and detergents. Not recommended for use with aliphatic or aromatic hydrocarbons.

Notice to purchaser:

Information and specifications contained herein are believed to be reliable by no assurance is given as to the accuracy or completeness of technical information or recommendations. The Sellers or Manufacturers sole undertaking with respect to the product in lieu of all warranties of any kind is to replace any of the products that is proved to be defective. Neither Seller nor Manufacturer makes any warranty or representation the product is suitable for any specific purpose, nor shall Seller or Manufacturer be liable for any incidental or consequential damages for breach of any expressed or implied warranty. No person is authorized to assume for Seller or Manufacturer any liability or obligation in regard to this product other than as expressly set forth in this paragraph.

Materials used by Bumper Specialties Inc. are in full compliance wit the European Standard for RoHS