italiano  english  english   

HOME

GROUP

PRODUCTS

CONTACT US

       

Gapi Group  Home

Group

Products
    O-Rings - rubber
    O-Rings - FEP
    O-Rings - PTFE
    Rubber Cords
    Back-up - PTFE
    PTFE Stock Shapes
         Virgin PTFE
           Virgin PTFE
           Properties
           Datasheet
         Filled PTFE
           Filled PTFE
           Properties
           Datasheet1
           Datasheet2
         Products
           Extruded rods
           Moulded rods
           Extruded tubes
           Moulded tubes
           Skived tapes
           Sheets
           Spaghetti tubings
           Saturflon glass
           Unsintered rods
           Expanded PTFE
           Anticorrosion linings
           Flexible-braided
     Oil Seals
    Lip seals - polyurethane
    Lip seals - rubber
    Wiper rings
    Composite - Rubber
    Composite - PTFE
    Thin Walled Tubes PTFE
    Finished Parts Rubber
    Finished Parts PTFE
    Polyurethane Parts
    TORLONŽ (*)
    Bonded Seals
    VulkollanŽ (**)
    Braided Packings
    Metal gaskets

Contact us

gapigroup@
gapigroup.com

(*) TorlonŽ Trademark
Solvay Belgium

(**) VulkollanŽ Trademark Bayer Leverkusen Germany

GapiŽ Trademark Gapi Italy

Produced by:

Terms and use of our Web-site
Copyright Š 1998-2007
All Rights Reserved


Filled PTFE datasheet (page1)
 
Properties Method Unit Unfilled typical values - FILLED
LV 2030 LVG 2030 LCG 3030 LCG 3040
Type of filler - % approx. - - - 25 glass 20 glass +
5 graph		 25 carbon 35 carbon
Specific gravity ASTM D792 - 2,17 2,23 2.18 2,10 2,10
Tensile strength ASTM D1457 N/mm2 30 16 15 15 15
Elongation at break ASTM D1457 % 300 260 200 180 80
Compressive strength 1% deformation ASTM D695 N/mm2 4,5 7,0 7,0 10,0 11,0
Deformation under load 14N/mm2 for 24h - Total P ASTM D621(2) % 14,5 9,5 6,8 6,5 3,7
Deformation under load 14N/mm2 for 24h - Total T ASTM D621(2) % 16,5 13,5 7,0 5,5 3,4
Deformation under load 14N/mm2 for 24h - Permanent P ASTM D621(2) % 8,0 5,0 5,0 3,0 1,0
Deformation under load 14N/mm2 for 24h - Permanent T ASTM D621(2) % 8,5 7,8 4,0 2,8 1,1
Hardness (shore D - 15 sec) ASTM D2240 - 55 63 60 63 65
Friction coefficient dynamic ASTM D3028 (1) - 0,05 0,07 0,06 0,06 0,06
Wear factor (K) - mm3sec/Nmh 1 0,00071 0,00106 0,00082 0,00070
PV limit at 0,05 m/sec - Nm/mm2sec 0,040 0,365 0,400 0,365 0,330
PV limit at 0,50 m/sec - Nm/mm2sec 0,070 0,475 0,545 0,460 0,400
PV limit at 5,00 m/sec - Nm/mm2sec 0,095 0,590 0,800 0,545 0,500
Coefficient of linear thermal expansion from 25 to 100°C ASTM E831 °C-1 16x10-5 10x10-5 11x10-5 9,5x10-5 9x10-5
Thermal conductivity ASTM D2214 W/mK 0,23 0,43 0,62 0,64 0,68
Dielectric strength (short-time air thickness 0,5 mm) ASTM D149 kV/mm 55 13 2,5 - -
Dielectric constant (50-109 Hz) ASTM D150 - 2,1 2,5 3,3 - -
Dissipation factor ASTM D150 - <0,0002 0,003 0,0025 - -
Volume resistivity ASTM D257 Ohm/cm 1017 1016 1015 103 103
Surface resistivity(3) ASTM D257 Ohm 1017 1016 1014 103 103

Note:
P - Designates properties parallel to moulding direction
T - Means perpendicular to moulding direction
(1) Speed 0,08 m/sec; load 0,1 N/mm2, sliding surface steel roughness Ra = 0,5 micron
(2) Superseded standard
(3) 100% relative humidity
All the determinations have been made at 23°C