ELASTOSIL® R 500/70 OH IN

High Consistency Silicone Rubber (HCR)
Peroxide cured vulcanizates made from this compound exhibit a unique combination of characteristics. They are noted
for their good flexibility, high transparency, and mechanical properties. The compounds are easily pigmented with
ELASTOSIL® Color Paste PT and have good processing characteristics.

Properties
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
• Food-contact
• General purpose

Technical data
General Characteristics

Applications

• Cables for Household Appliances
• Calendared Sheets
• Dairy & Food Applications
• Exhaust-Pipe Suspensions
• General Automotive Parts
• Wire & Cables
• Measurement & Control Cables
• Molded Parts
• Profiles & Tubing
• Sanitary
• Spark-Plug Boots
• Vibration Damping

Application details

ELASTOSIL® R 500/70 OH IN is a general-purpose grade that may be used for producing molded, extruded or
calendared articles like seals, gaskets, sheets, tubing and profiles.

Post cured parts can be used for food contact applications and are suitable for use under the Recommendation
“XV. Silicones” of the BfR and FDA § 177.2600 under observance of any given limitations on extractable and
volatile substances.

Processing

The raw rubber requires the addition of peroxides for vulcanization at elevated temperatures. A homogeneous
incorporation is a must, but please avoid temperatures >30°C along the incorporation process in order to maintain best
processing behavior. Pot life is depending on the used peroxide and storage condition.
For detailed information refer to our latest brochure “SOLID AND LIQUID SILICONE RUBBER – MATERIAL
AND PROCESSING GUIDELINES”.

Packaging and storage

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.

Safety notes

Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request
from WACKER subsidiaries or may be printed via WACKER web site http://www.wacker.com.