MatWeb, The Online Materials Database
Advanced Elastomer Systems Santoprene® 261-87 Thermoplastic Rubber
Subcategory: Elastomer, TPE; Polymer; Thermoplastic
Material Notes:
A colorable thermoplastic elastomer for wet electrical wire and cable applications with good fluid resistance, formulated to replace thermoset elastomers such as EPDM, polychloroprene, and chlorosulfonated polyethylene. It can be processed using injection molding, extrusion, blow molding or other melt processing techniques.
Key Features: UL 62 Bulletin listed for flexible cord applications; Wire and cable rating: 105°C (221°F) dry, 75°C (167°F) wet and 60°C (140°F) oil; EM 60 at 75°C (167°F): 1 day SIC = 2.59; % change in SIC, 1 to 14 days = 1.00; % change in SIC, 7 to 14 days = 0.50; Stability factor, 14 days = 0.14; Power factor, %, 14 days = 1.11; Deformation at 150°C (302°F) (T-2/T-1) = 0.59
Additional processing comments: This thermoplastic rubber is a shear-dependent material that can be processed on conventional thermoplastic equipment for injection molding, extrusion, or blow molding. For extrusion, a general purpose screw with a compression ratio of 2.5 to 3.0 is recommended. Material can be recycled. SANTOPRENE rubber is incompatible with acetal and PVC.
Values below are for injection molded plaques, side gated, 82.6 mm x 117.5 mm x 3.0 mm. Tensile properties measured across flow. Data provided by Advanced Elastomer Systems.
| Physical Properties | Metric | English | Comments | |
| ||||
| Density | 0.96 g/cc | 0.0347 lb/in³ | TPE-0105 (ASTM D792) | |
Mechanical Properties | ||||
| ||||
| Hardness, Shore A | 87 | 87 | 5 Second; TPE-0169 (ASTM D 2240) | |
| Tensile Strength, Ultimate | 14.5 MPa | 2100 psi | TPE-0153 (ASTM D 412) | |
| Elongation at Break | 600 % | 600 % | TPE-0153 (ASTM D 412) | |
| 100% Modulus | 0.0069 GPa | 1 ksi | TPE-0153 (ASTM D 412) | |
Thermal Properties | ||||
| ||||
| Maximum Service Temperature, Air | 105 °C | 221 °F | Wire and Cable Rating Dry | |
| Brittleness Temperature | Max -59 °C | Max -74.2 °F | TPE-0089 (ASTM D 746) | |
Processing Properties | ||||
| ||||
| Processing Temperature | 177 - 232 °C | 351 - 450 °F | ||
| Drying Temperature | 82 °C | 180 °F | Desiccant drying for 3 hours recommended | |
| Dry Time | 3 hour | 3 hour | ||
Copyright 1996-2010 by Automation Creations, Inc. The information provided by MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from Automation Creations, Inc. No warranty, neither expressed nor implied, is given regarding the accuracy of this information. The user assumes all risk and liability in connection with the use of information from MatWeb.