Straight Esters

SierraEster BO

Chemical Name / INCI:

Butyl Oleate

CAS #:

142-77-8

Chemical Family:

Esters > Straight Esters

OVERVIEW

SierraEster BO (Butyl Oleate) is an ester formed by the reaction of oleic acid with butanol, resulting in a clear, light-colored liquid. It is widely used as a plasticizer in both natural and synthetic rubber polymers, where it enhances low-temperature flexibility, particularly in materials such as polychloroprene and chlorosulfonated polyethylene. Beyond rubber applications, SierraEster BO is employed as a lubricant in metalworking processes, reducing friction and wear. In cosmetics and personal care formulations, it functions as an emollient, delivering moisturizing properties and improving skin feel.

CERTIFICATIONS & REGULATORY

  • Biodegradable

APPLICATIONS

  • Cosmetics
  • Hair Care
  • Inks
  • Lubricants
  • Rubber & Tires
  • Skin Care

TYPICAL PROPERTIES

Appearance: Clear Amber Liquid
Specific Gravity @25C: 0.872 g/ml
Viscosity @25C: 10 cps

FUNCTIONS

  • Emollient
  • Lubricant
  • Plasticizer