Teflon® FEP D 121

About
DuPont™ Teflon ® FEPD 121 is an off-white aqueous fluorinated ethylene propylene (FEP) dispersion stabilized with a non-ionic surfactant. It is a general-purpose dispersion that can be used to impart some the unique properties of FEP to end products that would be difficult to make using traditional melt extrusion processes. It can be used to coat or impregnate porous structures or to make thin films. It can be coated and melt bonded to polytetrafluoroethylene (PTFE) resin or used as a hot melt adhesive. The FEP resin in FEPD 121 is a melt flowable thermoplastic, providing superior properties typical of fluoropolymer resins: retention of properties after service at 204 °C (400 °F) and useful properties at -240 °C (-400 °F). FEPD 121 aqueous dispersion provides: inertness to nearly all industrial chemicals and solvents stability at high temperatures excellent dielectric properties excellent weatherability Typical Applications Heat-sealable top coatings for PTFE-coated fabrics for belting, circuit boards, architectural fabrics and electrical insulation Cast film for capacitor dielectrics or chemical barriers Hot melt adhesive for PTFE, PFA and FEP parts Metal coatings&&

About

DuPont™ Teflon ® FEPD 121 is an off-white aqueous fluorinated ethylene propylene (FEP) dispersion stabilized with a non-ionic surfactant. It is a general-purpose dispersion that can be used to impart some the unique properties of FEP to end products that would be difficult to make using traditional melt extrusion processes. It can be used to coat or impregnate porous structures or to make thin films. It can be coated and melt bonded to polytetrafluoroethylene (PTFE) resin or used as a hot melt adhesive. The FEP resin in FEPD 121 is a melt flowable thermoplastic, providing superior properties typical of fluoropolymer resins: retention of properties after service at 204 °C (400 °F) and useful properties at -240 °C (-400 °F). FEPD 121 aqueous dispersion provides: inertness to nearly all industrial chemicals and solvents stability at high temperatures excellent dielectric properties excellent weatherability Typical Applications Heat-sealable top coatings for PTFE-coated fabrics for belting, circuit boards, architectural fabrics and electrical insulation Cast film for capacitor dielectrics or chemical barriers Hot melt adhesive for PTFE, PFA and FEP parts Metal coatings&&

Product Description
Supplier	Chemours
Generic	FEP
Material Status	Commercial: Active
Features	Weather resistance is good,Good Electrical Properties,Food contact compliance,Solvent resistance
Availabilitys	North America,Latin America,Asia Pacific,Europe
Process Methods	Dipping coating method

Technical Data
THERMAL	Nominal value	Unit	Test method
Melting temperature	260	℃	ISO 12086，ASTM D2116

Supplementary information	Nominal value	Unit	Test method
Surfactant content – based on FEP solids
—	5.5	%	ISO 12086
—	5.5	%	ASTM D4441

PHYSICAL	Nominal value	Unit	Test method
Density	1.41	g/cm³	ISO 12086, ASTM D4441
Melt Flow Rate
372℃，5.0kg	8.0	g/10min	ASTM D2116, ISO 12086
PH value
—	10.0		ASTM E70
—	10.0		ISO 1148
Solid content -% FEP by weight
—	55	%	ASTM D4441
—	55	%	ISO 12086
Average particle size	180	nm	Internal Method
Brookfield viscosity
25℃	25	mPa·s	ASTM D2196
25℃	25	mPa·s	ISO 2555

Notes
1. Products made from unsintered dispersion do not comply.
2. Typical properties: these are not to be construed as specifications.
3. at 55% solids
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