|
Duron
CODE
|
Duron COMPOSITIONS
|
Color
|
PRACTICAL
TEMPERATURE SPAN
|
Fahren-
heit
|
Centi-
grade
|
|
FRICTION
COEFFICIENT
|
U.S.
FOOD
&
DRUG
APPROVAL
|
|
01
|
Premium grade unfilled
polytetrafluoroethylene (PTFE). Superb chemical resistance. Good for static
and slow motion applications when temperature/pressure relationships are moderate.
Limited radiation resistance.
|
White
|
|
.05 to .08
|
Yes
|
|
02
|
Premium grade pigmented
PTFE. Superb chemical resistance. Better wear quality than code 01 basic
material. Limited radiation resistance.
|
Brick
|
|
.05 to .08
|
Yes
|
|
03
|
PTFE reinforced with
molybdenum disulfide. Good general purpose composition. Good for dry gas
applications.
|
Grey
|
|
.05 to .10
|
No
|
|
04
|
PTFE reinforced with
calcium silicate mineral. Like code 01 material but greater wear and
extrusion resistance in addition to better heat tolerance. Food contact
approved.
|
Cream
|
|
.06 to .08
|
Yes
|
|
05
|
PTFE reinforced with
graphite powder. Long wearing in fluids that provide at least a slight
degree of lubrication. Good elasticity. Not abrasive. Low
gas-permeability.
|
Black
|
|
.06 to .10
|
No
|
|
06
|
PTFE reinforced with
graphite and carbon powders. Less elastic than code 05 composition but
slightly tougher.
|
Black
|
|
.08 to .12
|
No
|
|
07
|
PTFE reinforced with a higher
percentage of graphite and carbon powders than code 06 composition for
better wear resistance. Performs well in water and steam applications.
|
Black
|
|
.08 to .12
|
No
|
|
08
|
PTFE reinforced with polyimide
resin. Very good heat tolerance. Won't harm soft metals.
|
Beige
|
|
.08 to .12
|
No
|
|
09
|
PTFE reinforced with
polyester additive. Good wear characteristics and exceptionally good heat tolerance.
Not well suited for steam service.
|
Tan
|
|
.08 to .12
|
No
|
|
10
|
PTFE reinforced with
carbon fiber. Superior wear resistance in water and steam service. Performs
well at high rubbing speeds. Mating dynamic surface should be 55 Rockwell C
or higher.
|
Black
|
|
.08 to .12
|
No
|
|
11
|
PTFE reinforced with
glass fibers and molybdenum disulfide. Excellent wear resistance in all system
media. Can abrade soft metals.
|
Dark Grey
|
|
.08 to .12
|
No
|
|
12
|
PTFE reinforced with
bronze particulate additive. Exceptionally good for high rubbing speeds. Moderately
conductive in an electrical sense. Can react to certain chemicals.
|
Bronze
|
|
.12 to .20
|
No
|
|
13
|
PTFE reinforced with
bronze particulate additive and molybdenum disulfide. Like code 12 composition
but greater wear and extrusion resistance and lower friction.
|
Dark Bronze
|
|
.10 to .18
|
No
|
|
14
|
Enhanced ultra-high
molecular weight polyethylene (UHMWPE). Superior wear and extrusion resistance.
Excellent performance in abrasive and/or tacky substance applications.
Resists high radiation. Superb for cryogenic and small molecular size gas
applications. Limited high temperature Capabilities.
|
Pumpkin
|
|
.18 to .22
|
No
|
|
15
|
Ultra high molecular
weight polyethylene (UHMWPE). Excellent wear and extrusion characteristics,
but not quite as good as code 14. FDA-approved for contact with food
products. All other properties are the same as code 14.
|
Trans-
lucent
White
|
|
.18 to .22
|
Yes
|
