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NuSil™ CF3-3521

1 of 565 products in this brand
NuSil™ CF3-3521 is a liquid injection molding fluorosilicone elastomer. For applications requiring a medium hardness silicone and solvent resistance.

Polymer Name: Fluorosilicone

Processing Methods: Injection Molding

End Uses: Gaskets, O Rings

Features: Corrosion Resistant, Excellent Solvent Resistance, Good Thermal Stability, Low Moisture Absorption, Low Shrinkage, Wide Temperature Operating Range

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Identification & Functionality

Polymer Name
CAS No.
68909-20-6
Technologies

Features & Benefits

Product Highlights
  • Two-part, translucent fluorosilicone elastomer used with liquid injection molding equipment
  • 1:1 Mix Ratio (Part A:B)
  • Cures at room temperature or rapidly with heat
  • 50 mole % fluorosilicone

Applications & Uses

Cure Method
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • For applications requiring a medium hardness silicone and solvent resistance
  • Some typical applications include O-rings, gaskets, seals, and precision molded parts
  • Excellent for molding high quality parts at rapid rates
  • For applications requiring an operating temperature range of -65 to 240°C (-85 to 465°F)
Instructions for Use

Mixing

Mix in a 1:1 ratio by weight.

Vacuum Deaeration

Remove air entrapped during mixing by common vacuum deaeration procedure, observing all applicable safety precautions. Slowly apply vacuum, up to 28 inches Hg, to a container rated for use and of volume at least four times that of material being deaerated. Hold vacuum until presence of air is no longer evident.

Substrate Consideration

Cures in contact with most materials. Exceptions include butyl and chlorinated rubbers, some RTV silicones containing organotin and/or amines, and unreacted residues of some curing agents. Note: Some bonding applications may require the use of a primer. NuSil Technology LLC CF1-135 is recommended.

Adjustable Cure

Schedule Product cures at room temperature and a wide range of elevated temperatures and cure times to accommodate different production needs

Properties

Appearance
Translucent
Typical Properties
ValueUnitsTest Method / Conditions
Durometer Type A30.0
Tensile700 (4.83 )psi (MPa)
Elongat ion360.0%
Extrusion Rat e120.0g/minute
Mix Rat io0.042361111
Specific Gravity1.26
Work Time12.0hours
Cured Properties
ValueUnitsTest Method / Conditions
Cure SystemPlatinum
Cure at 150 °C30.0minutes

Packaging & Availability

Regional Availability
  • Asia Pacific
  • Europe
  • Latin America
  • North America