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Teflon non stick coating
Teflon non stick coatings are formulated with special blends of fluoropolymers and other high performance resins to improve toughness and abrasion resistance. Because the film components stratify during baking, most of the fluoropolymer properties, such as low friction and nonstick are retained. The resins provide adhesion and abrasion resistance.
Various resins are used to enable the lubricant to bind to the part being coated. These coatings are formulated primarily for chemical and corrosion resistance, friction control, and lubricity for fasteners and OEM components. Teflon coatings are applied as a single-coat, thin film, non-stick finish.
Properties:
Non-stick, Non-wetting,
Anti-static, self-lubricating, heat-resistant properties, thickness
from 25 microns and above. Very low adhesion to most materials,
excellent water repellent, low-coefficient of friction, chemical
inertness, and unusual thermal stability. Temperature resistance
-1000C to +2600C. Not attacked by corrosive
chemical or strong solvent.
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| TYPICAL APPLICATION |
- Textile Cylinders
- Biscuit Rollers
- Conveyor Belt
- Volumetric Feeder
- Cylon Hopper
- Bolt and Nuts
- Filter Screen
- Xerox Roller
- Exhaust Fan
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Heater
body
Guide Rollers
Camera Parts
Instrumentation
Iron Sole Plates
Slurry Tanks
Valves
Mould Rotors
Cookware
Hooper
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| Tensile
Strength @ 77oF (psi) |
1550-3500 |
| Elongation
@ 77oF (percent) |
200-400 |
| Adhesion
to metal |
Good |
| Static
coefficient of friction against polished steel |
0.30-0.10 |
| Dielectric
Strength, short time, 4 mil film (volts/mil) |
800-2000 |
| Dielectric
constant @ 60 to 144 cycles |
1.9-2.2 |
| Dissipation
factor 60 to 104 cycles |
.001-0.1 |
| Volume
resistivity, 50% rel. humidity (ohm-cm) |
2 x 1017 |
| Surface
resistivity, 50% rel. humidity (ohm-cm) |
2 x 1014 |
| Water
absorption (percent) |
0.00 |
| Outdoor
weathering |
Nonsignificant
change after 15years** |
| Use temperatures |
-450 to
+ 500oF |
| Resistance
to abrasion (grams abrasive per mil thickness) test
method: Bell abrasion tester |
150 |
| Hardness
(in Knoop hardness units test method: Tukon hardness
tester |
2-3 |
| Hardness
(Sward rocker test) |
20 |
| Contact
angle (degrees) |
Water
105 hedadecane 40-50 |
| NON-STICK
Very few solid substances will permanantly adhere to
TefecotTM coating and while tacky materials
may show some adhesion, almost all substances release
easily. |
| NON-WETTING
TEFCOTTM surface are both oleophobic and
hydrophobic, they are not readily wet, clean-up is easier,
more through and in many cases self-cleaning. |
| HEAT-RESISTANCE
There is no decomposition of TEFCOTTM below
250oC, insignificant decomposition between 250o and
300o which requires no special precautions. |
| LOW
COEFFICIENT OF FRICTION.
The cofficient of friction of Tefoct© is
generally in the range of 0.05 to 0.20, depending on
the load sliding speed. |
| CRYOGENIC STABILITY
TEFCOT? will withstand severe temperature
extremes without loss of physical properties. |
| UNIQUE
ELECTRICAL PROPERTIES
Over a wide range of frequencies, TEFCOTTM
has high dielectric strength, a low dissipation factor,
and very high surface resistivity. |
| CHEMICAL RESISTANCE
TEFCOTTM is normally unaffected by chemical
enviorments. The only chemicals known to affect all
are the alkali metals and highly reactive fluorinating
agents. |
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