Products
Home / Products / Fine Chemical /

Fluorocure #5 VC-50 FFKM Curing Agent with ≥ 99.5% Purity and 70°C~80°C Melting Point for Low Volatile Applications

Fluorocure #5 VC-50 FFKM Curing Agent with ≥ 99.5% Purity and 70°C~80°C Melting Point for Low Volatile Applications

Brand Name: ​Fluorocure #5(VC-50)
Model Number: 75768-65-9
MOQ: 1KG
Payment Terms: L/C,D/A,D/P,T/T,
Supply Ability: 1 Weeks
Detail Information
Place of Origin:
China
Certification:
ISO 12856
Cas No:
75768-65-9
EINECS:
278-305-5
Appearance:
Light Yellow
Purity:
≥ 99.5%
Melting Point:
70°C~80°C
Volatile:
≤ 0.2%
Content Bisphenol-AF:
77.5%-79%
Content Chlorine-free BPP:
20.5%-22%
Packaging Details:
25KG/bag
Highlight:

CAS 75768-65-9 ​Fluorocure #5

,

​Fluoroelastomers Fluorocure #5

,

CAS 75768-65-9 HFP Chemical

Product Description
Fluorocure #5 (VC-50) - For FFKM/Binary Ternary Fluoroelastomers/Oil Seals/Gaskets
CAS No: 75768-65-9
Product Description
Fluorocure #5 (VC-50): A high-performance organic phosphonium salt curing agent specifically designed for vulcanization of perfluoroelastomer (FFKM).
Functional Components in FFKM Production
  • PMVE: Provides flexibility and low-temperature resilience
  • TFE: Builds polymer backbone for chemical resistance
  • HFP: Improves processing performance
  • VC-50: Establishes crosslinked networks between polymer chains
Technical Parameters
Item Specification
Chemical Formula Organic Phosphonium Salt Compound
Appearance White to light yellow powder
Storage Conditions Cool, dry place, sealed storage
Safety Classification Non-hazardous chemical (standard handling required)
Performance Characteristics
  • High Efficiency Curing: Reduces curing time, improves production efficiency
  • Excellent Thermal Stability: Withstands temperatures above 300℃
  • Compression Set Resistance: Ensures long-term stability of sealing components
  • Broad Processing Window: Provides good processing safety
  • Low Extractables: Meets semiconductor-grade cleanliness requirements
Application Fields
  • Semiconductor Manufacturing: Wafer processing equipment seals, CVD chamber seals
  • Aerospace: Engine sealing systems, fuel system seals
  • Chemical Processing: Pump and valve seals, reactor equipment seals
  • Energy Sector: Oil/gas extraction equipment seals, battery equipment seals
Packaging
Standard packaging includes double-layer sealed plastic bags or sealed HDPE plastic drums, suitable for all transportation methods. Custom packaging options available.
Frequently Asked Questions
What are the main advantages of VC-50 compared to ordinary fluoroelastomer curing agents?
VC-50 offers higher crosslinking efficiency and thermal stability, withstanding continuous use above 300℃ while providing superior compression set resistance, making it ideal for high-end applications.
What process parameters require special attention when using VC-50?
Focus on curing temperature (280-330℃), curing time (adjusted by product thickness), and dispersion uniformity during mixing. Specific processes should be optimized based on equipment and formulation.
What is the shelf life of VC-50 and what storage precautions are necessary?
Shelf life is 24 months when stored cool, dry, sealed, and light-proof. After opening, prompt use is recommended to avoid moisture absorption and contamination.
Is VC-50 compatible with existing fluoroelastomer production equipment?
Yes, VC-50 works with universal fluoroelastomer processing equipment including internal mixers, open mills, and extruders, though settings may require fine-tuning.
Do you provide technical support for using VC-50?
We offer comprehensive technical support including formulation optimization, process parameter guidance, and problem diagnosis from our professional team.
Does the dosage of VC-50 vary across different application fields?
Yes. Semiconductor applications typically use 1-2%, while heavy industrial applications may adjust within 1-3% range. Our technical staff can provide specific recommendations.