This website uses cookies.

We use cookies for basic operations only and to analyse traffic. Click "Accept" or close this notice and continue to browse our site, without changing your cookie settings.

Accept
SI 4 (621)
SI 4 (621)
More Products
Product Description
WATER-REPELLANT SILICONE GREASE

DEFINITION
Insulating,  non-adhesive,  water-repellent  paste  formulated  from  silicone  for  assembling  and  various greasing. 

ADVANTAGES
  • Non-adhesive.
  • Water-repellent  grease demonstrates  excellent  hold  in liquids. Lubricates, and  provides  optimal  sliding. 
  • Reinforced  resistance to rusting;  withstands  solvents  and  chemical  agents  extremely  well.
  • Demonstrates  reinforced  dielectrical  characteristics, even  in humid environments.
  • Chemically  inert; does  not  corrode metals.
  • Compatible  with  plastics,  rubber  materials,  nitrile  and EPDM. 
APPLICATION  FIELDS
  • SI 4  is  especially  recommended  as  an  insulating  water-repellent.
  • Protects  against electrolytic  corrosion.
  • Electrical  equipment, relays, connectors, antennas  and  more.
  • Battery  terminals, pin head  adaptors  for lamps, and  all  equipment requiring protection  from  water.
  • Lubrication  during  assembly  of  parts  when  there  is  very  little  backlash.  
  • Facilitates  sliding.
  • Lubricant  for metal/plastic, metal/elastomer  surfaces.
  • Treat rubber  O-rings.
  • Suitable for greasing  devices  in  vacuum

TECHNICAL CHARACTERISTICS
Aspect : Colourless, translucent
Grade N.L.G.I : 2
Drop  point : None
Evaporation in 24 hours  at  200°C : 3%
Worked  penetration  after 60 strokes  at  25°C : 225-250
Freezing  point : <-50°C
Operating  temperature : -40°C to 200°C 
Di-electrical  strength kV/mm : 20
Dielectric  constant  at 25°C  (10²  cycles/s) : 2 85
Loss  tangent  at  25°C (10²cycles/s) : 0.0006
Volume resistivity  at  25°C  ohm/cm : 1.10
Arc  resistance,  in seconds,  minimum : 80 

INSTRUCTIONS  FOR  USE
Surfaces  that  have  been  previously  lubricated  with  a  mineral-based  grease  must  be  perfectly  clean  before application  of  SI  4. 

PACKAGING
100  g tube : Ref. 3621T3 x 12
1 kg box : Ref. 3621B7 x 6 
25  kg drum : Ref 3621O2 x1

AUTHORISATION
  • Complies  with Army  –  NATO  G  392
  • Complies  with ATEX  94/9/CE  Directive