EN
Polyether Modified Silicone SF8427
SF8427 is a primary hydroxyl-functional polydimethylsiloxane polyoxyethylene copolymer supplied as a 100% active fluid. Its structure is linear with functionality only on the ends of the polymer chain. It is designed as an organic resin modifier to impart lubricity and anti-blocking characteristics, and as a lubricant for synthetic fiber processing.
SF8427 can be used as supplied or diluted before application or addition to a resin system. Dilution can be accomplished by organic solvents or water.
Introduction
Application
Organic resin modifier.
Thread lubricant.
Typical Physical Properties
(These values are not intended for use in preparing specifications.)
Appearance: Hazy-clear straw
Active ingredients, %: 100
Viscosity (25°C/77℉), cSt : 320
Primary hydroxyl, %: 1.7
Number of OH sites/molecule: 2
Average hydroxyl equivalent weight: 1000
Flash point (closed cup): 203°C（397℉）
Refractive index: 1.44
Pour point: 18°C（64℉）
Key Features
1.Greater solubility with organic lubricant components than conventional polydimethylsiloxane
2.More scourable than conventional polydimethylsiloxane
3.More thermally stable than conventional lubricants such as butylstearate, mineral oils or organic copolymers
4.More thermally stable than conventional graft-structure polydimethylsiloxane polyoxyethylene copolymers
5.Improved flow-out of resin coating
6.Improved abrasion resistance
7.Antiblocking performance
Package
The SF8427 polyester Modified silicon is available in 25kg(55lb) & 200kg(440lb) drums.
Storage and Expiration Date
When stored in an unopened container at or below 32°C (90°F), the SF8427 polyester Modified silicon has a usable life of 24 months from the production date.