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ELASTOSIL® R 501/75 OH

ELASTOSIL® R 501/75 OH is a peroxide curing HCR silicone rubber for the manufacture of flame retardant products.


Properties

The color of the rubber base is white. Colors will not match the RAL color codes of the masterbatches used in paste or pellet form in the compound (pastel colors).

 

This product can be used within a temperature range of - 55 °C to + 210 °C. The addition of heat stabilizers at service temperatures of more than 180 °C is recommended. Further information to improve the heat stability by use of specific ELASTOSIL® AUX Heat Stabilizers can be obtained from the Technical Information Sheet "ELASTOSIL® AUX Stabilizers H" or from the latest brochures.

Specific features of ELASTOSIL® R 501/75 OH

  • Flame retardant
  • Heat resistant
  • High LOI
  • High tear-resistant

Cable insulations for household, automotive, railway, marine and aerospace applications where high flame retardancy is required.

The raw rubber requires the addition of peroxides for vulcanization at elevated temperatures. A homogeneous incorporation is a must to maintain best processing behavior. Pot life is depending on the used peroxide and storage condition. Please consider the technical data sheet of the corresponding curing agent.

 

For detailed information refer to our latest brochure "SOLID AND LIQUID SILICONE RUBBER - MATERIAL AND PROCESSING GUIDELINES".

Packaging

This product is available in 20 kg and 540 kg cardboard packaging.

Special delivery forms are possible but depend on several technical and commercial aspects. Please contact your local sales manager in such cases.

Storage

Please store the cardboard boxes in a dry and cool place. Already opened boxes should be closed again to avoid any contamination. The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemicals Middle East
Dubai Silicon Oasis s/n
0001 Dubai
United Arab Emirates
+971  4  709-9999 (Phone)
+971 4 709-9911  (Fax)
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Products Technical data
Appearance Hardness Shore A Tensile strength Elongation at break Tear strength Compression Set
ELASTOSIL® R 501/75 OH white white 68[1] 68[1] 7.3 N/mm²[2] 7.3 N/mm²[2] 500 %[3] 500 %[3] 34 N/mm[4] 34 N/mm[4] 89 %[5] 89 %[5]
ELASTOSIL® R 770/50 OH white white 45[1] 45[1] 9.0 N/mm²[2] 9.0 N/mm²[2] 670 %[3] 670 %[3] 40 N/mm[4] 40 N/mm[4] 15 %[5] 15 %[5]
ELASTOSIL® R 770/60 OH white white 63[1] 63[1] 4.0 N/mm²[2] 4.0 N/mm²[2] 420 %[3] 420 %[3] 14 N/mm[4] 14 N/mm[4] 56 %[6] 56 %[6]
ELASTOSIL® R 770/75 OH white white 72[1] 72[1] 3.8 N/mm²[2] 3.8 N/mm²[2] 350 %[3] 350 %[3] 15 N/mm[4] 15 N/mm[4] 59 %[6] 59 %[6]
Legend
[1] Hardness Shore A | DIN ISO 48-4,  [2] Tensile strength | ISO 37 type 1,  [3] Elongation at break | ISO 37 type 1,  [4] Tear strength | ASTM D 624 B,  [5] Compression Set | 22 h | 175 °C | DIN ISO 815-1 type B method A,  [6] Compression Set | 22 h | 175 °C | DIN ISO 815-1 type B method A | post-cured 4 h / 150 °C 

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Wacker Chemie AG
Gisela-Stein-Strasse 1
81671 Munich
+49  89  6279-0 (Phone)

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