Technical Information
Polyurethane Physical Properties
| Property | Test Method | Transparent | Coloured | |||
| Hardness (shore A) | ASTN D-2240 | 66-70 | 66-70 | |||
| Tensile Strength (Mpa) | BS903 | 3.6 MN/m2 | 3.5 MN/m2 | |||
| Elongation (%) | BS903 | 190% | 150% | |||
| Tear Strength (KN/m) | BS903 | 14.0 kN/m | 13.0 kN/m | |||
| Abrasion Resistance | BS EN 5470-1:1999 | 0.35g loss | 0.45g loss | |||
| Flame Retardancy | UL94HB | Pass | Pass | |||
| Application Temperature | -20ºC to 80ºC | -30ºC to 65ºC | ||||
| Kinetic coefficient of friction | ASTM D-1894-78 | |||||
| Shelf Life—12 months when stored in original packaging at room temperature | A. Stainless Steel B. Glass C. Smooth PVC floor Tile D. High impact polystyrene |
2,52 2,7 2,5 2,37 |
5,69 2,9 2,62 2,53 |
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Adhesive Data
| 6000 Series Rubber Adhesive The 6000 series adhesive is an aggressive high tack adhesive system, which displays good instant tack, high peel and shear properties. Usually chosen for applications which require high levels of initial tack. Unless otherwise specified, standard on all coloured BumperStops. |
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| 4000 Series Acrylic Adhesive This is an adhesive with good shear strength and a higher end use temperature. Usually preferred for applications where good ageing properties are a required feature. Unless otherwise specified, standard on all transparent BumperStops. |
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| Properties | 6000 Series | 4000 Series | ||||
| Adhesive Characteristics | System Thickness Backing Liner Adhesive Feature |
Solvent Rubber 0.002 120 gsm paper High initial tack |
Solvent Acrylic 0.002 120 gsm paper Good ageing properties |
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| Adhesive Performance | Shear Strength @ 21°C Shear Strength @ 49°C |
Excellent Excellent |
Excellent Excellent |
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| Application Temperature | 15°C to 65°C | 10°C to 65°C | ||||
| End Use Temperature | -10°C to 80°C | -20°C to 80°C | ||||
| Recommended Storage Temperature |
21°C | 21°C | ||||
Exposure to the Environment
BumperStops are intended for interior applications where physical properties will remain unchanged. When used externally for extended periods, some discolouration as well as loss of adhesion may occur.
Load Tolerance Information
In the event of using BumperStops for applications involving the support of heavy plate glass, laboratory tests have shown that cylindrical shapes perform better than hemispherical.
A heavy load supported by the wrong style of BumperStop could result
in fracturing or "crumbling" of the urethane material.
Please refer to the chart for weight loading guidance.
Compression tests were carried out at ambient temperature (24ºC)
| Product | colour | Profile | Kg per bumper | |||
| PD. 2115C | Transparent | Hemispherical | 5 |
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| PD.2150C | Transparent | Hemispherical | 10 |
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| PD.2127C | Transparent | Square | 12 |
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| PD.2205C | Transparent | Square | 24 |
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| PD.2120C | Transparent | Cylindrical | 10 |
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| PD.2125C | Transparent | Cylindrical | 15 |
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| PD.2191C | Transparent | Cylindrical | 26 |
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| PD.2019C | Transparent | Cylindrical | 24 |
Adhesive Considerations
Please refer to the chart which illustrates the relative adhesion properties of the adhesive systems used in BumperStops.
In general terms, allow time (dwell) to increase the surface contact and adhesion. Please note that acrylic based adhesives generally require longer dwell times than rubber based adhesive.
Applying BumperStops
It is important to remember that, as with any self adhesive product, the surface to which you are applying BumperStops must be clean, dry and free from dust and dirt. Therefore, to gain maximum adhesion, clean the surface with low strength solvent and allow to dry thoroughly. Please
follow solvent manufacturers’ instructions for safety. The information provided above have been gained under laboratory conditions, therefore customers must test BumperStops themselves to ensure suitability for intended applications.
All BumperStops are RoHS and Wee compliant.