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It is recommended to apply BLUESIL PAST 4 onto clean and dry surfaces (degreased if necessary).
BLUESIL PAST 4 is applied with a brush, with a paint brush, with a spatula or with a paste gun.
BLUESIL PAST 4 can be diluted in aliphatic or chlorinated solvents to facilitate its application when being applied in thin coats.

STORAGE t < +40°C IN ITS ORIGINAL PACKNo special storage precautions noted. Material is stable under normal conditions. Avoid contact with oxidizing agents. Use container made of: Plastic lined steel drum. Suitable plastic material.Please consult the Safety Data Sheet of this product.ELV;RoHS;VOC;WEEE


BLUESIL PAST 4 is a polydimethylsiloxanic oil based silicone paste together with inert fillers. This paste is particularly adapted to the protection and insulation of electrical switchgear, notably in extreme temperature conditions.

Paste & Grease




  • Hydrophobic.
  • Chemically inert.
  • Good dielectric properties.
  • Stability of properties over a wide temperature range.
  • Resistance to extreme temperatures: –40°C to +200°C
  • In conformity with MIL and NATO standards.



  • Protection of electrical and electronic switchgear in the aeronautics industry.
  • Sealing of electric motors.
  • Protection of relays, cable connections, battery terminals, etc.
  • Static lubrication of small systems.


Asia Pacific;Europe Middle East Africa;Central and South America;North America

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Worked penetration<260MonocompASTM D 2171/10mm
Volatile Content<2Monocomp%