Fluorinated Ethylene Propylene FEP Dispersion White Or Yellowish Liquid SF-221
FEP Dispersion SF-221
Product Description
FEP concentrated dispersion, copolymerized by tetrafluoroethylene and hexafluoropropylene, is stable in aqueous solution or in granular form. It is milky white or light yellow, and the products from it features excellent temperature durability, corrosion resistance, prominent chemical inertness, extraordinary electric insulation, and low friction coefficient, and can be used secularly under 200℃. Besides, FEP offers low temperature flexibility and unique flame retardance. It can be applied to coatings, plastic melt extrusion, dip lye, and spray painting.
Grades and technical properties:
| Item | Nominal Value | ||||
| SF-221 | SF-222 | SF-223 | SF-224 | SF-225 | |
| Appearance | white or yellowish liquid | ||||
| PH | 7.5-10.5 | 8.0-10 | 7.5-10.5 | 8.0-10.0 | 8.0-10.0 |
| Solid content, % | 50±2 | 60±2 | |||
| Surfactant, % | 5±2 | ||||
Application:
Can be used for coating, impregnation, and processing of many products, including surface coatings for heat-resistant PTFE impregnated fibers, printed wiring boards, or electrical insulating materials, injection molded films, or chemically isolated materials, as well as PTFE and FEP interconnected melt adhesive. It can also be used to prepare a primer for a metal substrate, or to form an anti-stick coating with a glass cloth, and a high insulating film with a polyimide.
Packing ,Storage & Transportation:
1,Not classified as hazardous for transport. During transportation and storage, avoid heavy shaking, high temperature and below 0℃；
2,After three months, shaking the drum every week to avoid the deposition
3,Package: 25kgs, and 1000kgs per drum.
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