General Information
Chemical Properties Of Fluroethylenepropylene (FEP)
As stated by E.I. du Pont de Nemours
FEP fluorocarbon resins are attacked by certain halogenated complexes containing fluorine including:
chlorine trifluoride, bromine trifluoride, iodine pentafluoride and fluorine itself.
FEP is also attacked by such metals as sodium or potassium, especially in their molten states. Great care
should be used when mixing finely divided fluorocarbon polymers with finely divided metals, such as
aluminum, magnesium or barium, since these can react violently if ignited or heated to a high temperature.
Certain complexes of these metals with ammonia or naphthalene (in either solvent) also attack the
products. Certain metal hydrides such as boranes, aluminum chloride and certain amines have also been
observed to attack fluorocarbon resins at elevated temperatures.
The following materials are inert to FEP:
›
Alcohols
›
Aldehydes
›
Aliphatic Hydrocarbons
›
Anhydrides
›
Aromatics
›
Chlorocarbons
›
Esters
›
Ethers
›
Fluorocarbons
›
Inorganic Bases
›
Inorganic Oxidizing Agents
›
Ketones
›
Organic Acids
›
Salt Solutions
›
Strong Mineral Acids
FEP is a registered trademark with E.I. du Pont de Nemours.
Method For Steam Cleaning Continental ContiTech Products
(
Chem One™, Viper™, Fabchem™ and Fabchem™ Arc)
5
Important Requirements:
1)
Hose must be open-ended during steam cleaning.
2)
Temperature of Steam – Maximum 288˚F (142˚C).
3)
Length of Cleaning Time – 5 to 10 minutes...Not more than 15 minutes.
4)
Care must be taken not to score the tube (liner) with the nozzle or wand end.
5)
Prolonged steam jet contact on a specific area of the tube (liner) could cause tube damage.
320
Appendix
C
Air & Multipurpose
General Purpose
Heavy Duty
Push-on
Chemical Transfer
Cleaning Equipment
Food
Transfer
Washdown
Marine
Material Handling
Abrasives
Bulk Transfer
Cement & Concrete
Mining
Petroleum
Aircraft Fueling
Dispensing
Dock
Transfer
Spray
Steam
Vacuum
LPG Delivery
Water
Discharge
Suction & Discharge
Washdown
Welding
Coupling Systems
Equipment
Appendix