East Materials
MESIL®

MESIL 201 — Polydimethylsiloxane Fluid

MESIL 201 is a 100% polydimethylsiloxane synthetic oil available in 50, 100, 200, 350, 500, and 1,000 cSt grades, ranging from water-like free-flowing fluids to syrup-like fluids.

CAS
63148-62-9
Category
silicone-oils
Updated
2026-05-14

Overview

MESIL 201 is a 100% polydimethylsiloxane synthetic oil. Products range from water-like, free-flowing fluids to syrup-like fluids, depending on viscosity grade. CAS numbers: 9006-65-9 / 9016-00-6 / 63148-62-9.

Technical Specifications

PropertyUnitValue
CAS No.9006-65-9 / 9016-00-6 / 63148-62-9
Color and AppearanceColorless transparent liquid
Specific Gravity (25°C)0.958–0.975
Refractive Index (25°C)1.4020–1.4100
ViscositycSt50 / 100 / 200 / 350 / 500 / 1,000 (custom available)
Flash Point°Cabove 310
Ignition Point°Cabove 400
Freezing Point°C−55
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Applications

  • Insulation, lubrication, shockproof, dustproof, dielectric fluid, heat carrier, paint and chemical additives
  • Release agent for rubber, plastics, and metal die-castings
  • Anti-foam agent in non-aqueous systems
  • Mechanical and hydraulic fluid
  • Lubricant for plastic and elastomeric surfaces
  • Automobile and furniture polishes
  • Electrical and electronic equipment insulation

Packaging & Storage

Supplied in 200 kg steel drums or 950 kg IBC drums. 20' GP FCL capacity: 80 steel drums (16,000 kg) or 18 IBC drums (17,100 kg). Shelf life: 36 months at ambient temperature in original unopened packaging.

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