Ambersil AMS4 Silicone Grease

Ambersil AMS4 Silicone Grease
Caution This is a Hazardous Product

Ambersil AMS4 Silicone Grease

Code : 31566-AA

Ambersil AMS4 is an inert, military & aviation grade XG250 silicone grease for use on rubber seals to prevent cracking, on 3-phase connectors to prevent moisture ingress and for general lubrication.


(RRP £17.08 Save 10%) From £15.37 Inc VAT (£12.81 Ex VAT)
Availability: Out of Stock but Available for Back Order
Bulk Discounts Available
Qty 1+ 12+ 24+
Unit Price £17.08 Inc VAT (£14.23 Ex VAT) £16.22 Inc VAT (£13.52 Ex VAT) £15.37 Inc VAT (£12.81 Ex VAT)

AMS4 Silicone Grease provides a smooth, non-melting coating with a broad spectrum of applications. Meets military and aviation specifications.


  • Electronics and Telecommunications: insulates high voltage parts against leaking and arcing; protects switch gear against oxidation; waterproofs components in damp or humid conditions.
  • Transport: lubricates door strips, door runners and curtain side tracks; prevents freezing of locks; preserves seals against cracking and hardening.
  • Aviation: seals exposed components against moisture ingress; helps to prevent ice build-up.
  • Mechanical, Engineering and Production: lubricates slow running gears, metal to metal surfaces and other moving parts; assists assembly of tight fitting components (e.g. installation of cables through conduits); prevents seizing on connections and fittings; aids release of epoxy resin and other types of plastic moulding.


  • Appearance: Cloudy white liquid
  • Odour: Hydrocarbon solvent
  • SG @ 25°C: 0.81
  • Pressure @ 25°C: 3.4 Bar
  • Discharge rate: 0.8 g/sec
  • Temperature range: -50°C to +200°C
  • Solubility Soluble in most solvents, insoluble in water
  • Flammability: Classified as extremely flammable under current EC Regulations
  • NLGI Grade: NLGI 3
  • Specifications / Approvals: Formulated using grease which conforms to Def. Stan 68-69/1(Grease XG-250, NATO Code S-736) and to MIL-S-8660B, Nato Stock No. 5970-99- 224-4975, Service Management Code. RAF-34B


The product may be stored at normal ambient temperatures and has a shelf life of not less than 6 years with correct storage. Aerosols should always be stored below 50°C, away from direct heat and naked flame.


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