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methyl terminated fluorosilicone fluid
methyl terminated fluorosilicone fluid

LF-HF12 Hydrogen-Containing Fluorosilicone Fluid

Silfluo LF-HF12 is a series of hydrogen-functional fluorosilicone fluids (Si-H-functional fluorosilicone oils) containing trifluoropropyl groups and reactive Si-H functionality. Depending on the grade, Si-H groups are  terminal, pendant, or both terminal and pendant.

The incorporated trifluoropropyl groups contribute to oil and solvent resistance and to water- and oil-repellent properties, while the Si-H groups react with vinyl-functional fluorosilicone polymers through platinum-catalyzed hydrosilylation. LF-HF12 can therefore be evaluated as a crosslinker for addition-cure fluorosilicone systems.

Five grades cover three Si-H distributions and nominal Si-H contents from 0.03 to 0.80 wt%. Grade selection and the Si-H-to-vinyl ratio influence crosslink density, cure response and final properties; the complete formulation must be validated by the customer.


Typical Technical Properties of LF-HF12 Hydrogen-Containing Fluorosilicone Fluid

Silfluo Code:

LF-HF12-M20

LF-HF12-M80

LF-HF12-TS45

LF-HF12-TS40

LF-HF12-T03

Functional Type:

Methyl-terminated, pendant Si-H fluorosilicone fluid

Terminal and pendant Si-H fluorosilicone fluid

Hydrogen-terminated fluorosilicone fluid

Si-H Content (wt%)

0.20

0.80

0.45

0.40

0.03

Kinematic Viscosity (25°C, mm²/s [cSt])

20-100

200

Appearance

Colorless transparent oily liquid

Density (25°C, g/cm³)

1.00-1.30

Refractive Index (25°C)

1.380-1.400

Notes:

Viscosity and Si-H content can be customized. Code suffix: M = methyl-terminated/pendant Si-H; TS = terminal + pendant Si-H; T = terminal Si-H; number = nominal Si-H content (wt%) x100.


Applications of LF-HF12 Hydrogen-Containing Fluorosilicone Fluid

1. Addition-Cure Fluorosilicone Systems

Crosslinker for platinum-catalyzed fluorosilicone rubber, fluorosilicone potting compounds, fluorosilicone gels, fluorosilicone adhesives and fluorosilicone release-coating or release-liner formulations. Compatibility, catalyst inhibition, Si-H-to-vinyl ratio and cure conditions must be confirmed in the final formulation.

2. Water- and Oil-Repellent Surface Treatment

After suitable formulation and catalysis, LF-HF12 may be evaluated for water- and oil-repellent treatment of rubber, textiles, glass, ceramics, paper, leather, metals, cement and marble. Application-specific testing is required to confirm film formation, repellency and substrate compatibility.

3. Reactive Intermediate for Hydrosilylation

Reactive Si-H functionality allows hydrosilylation with vinyl or other compatible unsaturated groups, supporting the development of fluorosilicone networks and modified materials. Reaction design and safety controls must be established by qualified formulators.


Package & Storage of LF-HF12 Hydrogen-Containing Fluorosilicone Fluid


  • In 5kg, 25kg and 50kg drum

  • Keep in cool, dry and ventilated place. Keep in unopened containers, shelf life is 12 months from the date of production. Storage beyond the shelf life does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

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