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Ensinger PEI

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CHT ALPA-SIL 18201 Silicone Molding Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber

Material Notes: Description: This is a pourable 2-part addition cure silicone elastomer system. After mixing parts ‘A’ and ‘B’ in the correct proportions, the system will cure at ambient temperatures within 24 hours, but the rate of cure can be accelerated by heat. The cured rubber exhibits excellent physical and electrical properties.

Key Features

  • Crosslinks at temperatures as of 23 °C/77°F
  • Easy mixing of the components
  • Simple processing
  • Very good alkali stability and therefore excellently suited for concrete moulds
Application: Two component silicone elastomer which crosslinks through polyaddition reaction at room temperature. Due to its excellent alkali stability the product is particularly suited for producing moulds for concrete.

Information provided by CHT Group

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Physical PropertiesOriginal ValueComments
Brookfield Viscosity 10000 cPA
 10000 cPB
 10000 cPMixed
Linear Mold Shrinkage 0.0010 cm/cm
Storage Temperature <= 30.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 18DIN 53 505
Tensile Strength 435 psiISO 37
Elongation at Break 300 %ISO 37
Tear Strength 29.0 pliBS ISO 34-1
 
Processing PropertiesOriginal ValueComments
Cure Time 8.00 - 12.0 hourTack Free Time / Skin Formation
 24.0 hourDe-mould Time / Full Cure
Pot Life 60.0 - 90.0 min
Shelf Life 12.0 Month
 
Descriptive Properties
AppearanceWhite
ColorWhiteA
 WhiteCured Product
Cure typeAddition
Mix Ratio1:1By Weight

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PCHTSIL083 / 314566

Proto3000 – 3D Engineering Solutions

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