Product Description

PTFE gasket is manufactured by molding method with PTFE powder.
PTFE compared with other plastics, it has a best chemicals rsistance and temperature resistance.so PTFE is widely use as a sealing material.
and it can filled bronze/MoS2/carbon fibre/glass fibre and get the special proerties

Specifications︰ Filled PTFE
[ Features ]
Filled PTFE article is manufactured by moding method with filled PTFE resin. Filled PTFE resin is manufactured by compounding PTFE granular resin with fillers of many differents kinds. Amongst the many fillers suitable for compounding with PTFE, glass fiber, carbon fiber, Bronze and also lubricating materials like graphite, molybdenum disulphide, have been widely used in large scale production, Broadly speaking PTFE compounds have the following advantage over unfilled.

PTFE. Improved compression strength
Improved thermal conductivity
Dereased thermal expansioin
Improved abrasion resistance


[ Specifications ]
outside diameter ／Inside diameter ×High
(mm)
outside diameter ／Inside diameter ×High
(mm)
outside diameter ／Inside diameter ×High
(mm)
outside diameter ／Inside diameter ×High
(mm)

15/10×40 71/55×90 115/65×100 170/100×100
30/19×70 75/42×150 115/75×100 172/135×50
36/24×50 77/55×100 117/80×110 172/145×115
40/18×100 79/65×80 120/98×70 187/159×70
40/20×100 83/30×100 122/102×60 205/162×90
42/25×100 83/60×100 125/60×100 213/189×100
48/36×100 84/53×70 125/80×85 220/170×40
49/39×50 64/60×100 127/86×100 229/185×70
50/28×100 90/68×100 129/112×62 250/214×100
57/40×50 93/60×100 135/92×65 284/250×95
60/30×50 93/65×100 140/100×100 290/240×120
64/30×50 100/60×100 141/112×100 304/364×50
66/45×50 100/65×100 142/112×100 325/285×100
66/51×50 100/75×100 148/118×100 390/354×120
66/55×50 100/84×50 150/110×100 395/355×50
68/42×60 102/65×100 160/130×65 516/468×80
69/42×100 107/65×100 162/126×100 578/530×90
70/45×50 110/50×70 164/137×62
110/65×125 164/124×60

[ Main properties ]
Produc No. Filled compound and Content by wt Tensie strength MPa(min) Ultimate strength %(min) Compresive strength MPa(min)
1 20% glass fiber 10 120 16
2 25% glass fiber 10 100 16
3 20% glass fiber 5% graphile 10 120 16
4 60% Bronze 10 80 20
5 15% carbon fiber 11 130 16
6 24% Bronze 12% glass fiber 6% graphile 9 100 16
7 15% glass fiber 10% Polyikmide 5% graphile 10 120 16.7

[ Application of filled PTFE ]
Application Necessary proerties Suggested grades of filled PTFE
Gaskets Creep resistance, chemical resistance #1 #2 #3 #5
Valve seas Creep resistance, Lowfriction, chemical resistance #1 #2 #3 #5
Packings Creep resistance, Lowfriction, Low wear, chemical resistance, stiffness #1 #3 #5 #7
Bearings Low wear, Lowfriction、Creep resistance #1 #4 #5 #6
Bearing Pads Creep resistance, Lowfriction, resistant to weathering #3
Piston rings Creep resistance, Lowfriction，chemical resistance, stiffness #1 #2 #3 #5

Advantages︰ Note: Filler: glass fiber; carbon fiber; MoS2; graphite; PI; PPS; SiO2 ; bronze powder; polyphenyl, etc

Main properties
Item unit value
Density g/cm3 2.10-2.30
Tensile strength (min) MPa 15.0
Ultimate elongation (min):% 150

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