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Amatrium Materials AI
Wacker Wacker® P Silicone Paste
Categories: Polymer; Thermoset; Silicone

Material Notes: Product description: WACKER® SILICONE PASTE P is a translucent, vaseline-like, relatively stiff, waterrepellent paste. WACKER® SILICONE PASTE P becomes softer when subjected to shear stress or other mechanical stress such as kneading, which in many instances makes processing easier. The pasty consistency is little affected by changes in temperature. The components of Paste P are on the positive lists of the following Regulations for food contact: Regulation (EU) No. 10/2011, Recommendation XV. Silicones of the BfR (Federal Institute for Risk Assessment) and the FDA Code of Federal Regulations Title 21 §175.3570 Lubricants with Incidental Food Contact.

Application: Assembly aid and lubricant for elastomers, especially O-rings. WACKER® SILICONE PASTE P is easy to apply. There is no dripping as when using oil. Larger parts are greased with the pure paste by hand or with abrush; smaller parts in large quantities are put into a plastic bag with some paste and kneaded until the paste has been distributed over their surfaces. Silicon pastes have only a slight swelling effect on most organic elastomers. For lubricating purposes and as assembly aid for materials with critical swelling characteristics we would, however, recommend using silicone product WACKER®POWERSIL® PASTE AP, which is especially designed for causing low swelling of bordering elastomers. Heat-resistance release agent for

  • extruder die rings
  • slightly porous surfaces of moulds for demoulding rubber and plastics mouldings and cast resin parts
  • heat-sealing instruments such as used for Packaging Film, where a thin film of WACKER® SILICONE PASTE P applied to the welding bars prevents sticking

Information provided by Wacker Chemie AG.

Available Properties
  • Density, ISO 1183-1 A
  • Volatiles, FED-STD 791 M 321
  • Penetration, DIN ISO 2137, [1/10 mm], unworked
  • Penetration P(60), 1/10 mm, DIN ISO 2137, worked
  • Dielectric Constant, IEC 60250
  • Dielectric Strength, DIN 53481
  • Dissipation Factor, IEC 60250
  • Solidus
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
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