OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE) PC)

Tel: (08) 9412 3999 17 Biscayne Way, JANDAKOT WA 6164 Email: polytech@acrifabmanufacturing.com.au

www.polytech-plastics.com.au

OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE) – originally given the trade name of Teflon. OMEGAGLYDE ® PTFE Sheet, Rod

and Tube is resistant to practically every chemical and has a surface as slippery as ice on ice to which no substance will adhere. The fluorocarbon plastics include Polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE). Polyvinylidene (PVDF), polyvinyl fluoride (PVF) and a copolymer of tetrafluoroethylene and hexafluoropropylene (FEP) form a relatively new group of plastics remarkable for their extreme chemical resistance, excellent dielectric properties and wide working temperature range.

MAIN ADVANTAGES OF OMEGA-GLYDE ® PTFE SHEET, ROD AND TUBE

• Very high chemical resistance • Lowest co-efficient of friction • Continuous operating use at high temperature • Physiologically inert – unaffected by almost all chemicals • Low flammability • Excellent dielectric properties • Easy machinability

WEAKNESSES OF OMEGA-GLYDE ® PTFE SHEET, ROD AND TUBE

• Low mechanical properties • Relatively high cost • Poor dimensional stability due to the high elastic deformation and high coefficient of thermal expansion • PTFE extrusions are likely to contain residual stresses • Non-stick surface because adhesives cannot be used

OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE)

SHEET, ROD AND TUBE

APPLICATIONS

In The Chemical Industry: Solid

pipe and fittings; Liner for steel pipe and fittings, hoses, pumps, valves; Glass backed sheet for lining vessels; Mass transfer tower packing; Gaskets and spacers; Valve components; Expansion bellows; Shaft packing; Tubing; Heat shrinkable tubing; Sample collection media.

In The Mechanical And Architectural

Industry: Seals; Piston rings;

Bushings; Bearings; Slide bearings; Coated fabrics for water repellency, stain protection; Coating films for panels, signs etc.

Electrical Industry: Wire and cable

insulation; Fibre optics coating.

PTFE Chemically Modified PTFE modified with hexafluoropropylene (HFP) and perfluoropropylvinylether (PPVE) results in a reduced crystalline phase and an increased

amorphous phase. It has enhanced mechanical performance, with a very high recovery and ultra-low deformation under load. Chemically modified

PTFE has reduced permeability, no polymerisation and a longer in-service life. It can outperform PTFE, filled PTFE, PFA and FEP.

Key Points

• Lowest coefficient of friction

• Very high chemical resistance

• High operating temperature

• Physiologically inert

• Low flammability

• Excellent electrical properties

• Easy machinability

Ethylene Tetrafluoroethylene (ETFE)

FEP (Fluorinated ethylene propylene) is extruded and injection moulded. It has the chemical resistance, mechanical and electr ical properties of PTFE but a more narrow temperature range – maximum temperature is 205ºC. FEP has better clarity than PTFE and is used in tubing and bag applications. A plastic converter can apply knit fiberglass to one side of an FEP sheet. Fabricator can weld glass backed sheets together over cylindrical moulds and vessel closure moulds (flat or dished or conical heads). They then overwrap this liner with fiberglass reinforced thermoset resin to make chemical resistant tanks, vessels and columns for the corrosive chemical

industry.

APPLICATIONS

• Chemical Industry: Solid

pipe and fittings; Liner for

steel pipe and fittings, hoses,

pumps; Mass transfer tower

packing; Gaskets and spacers;

Valve components; Shaft

packing.

• Mechanical and

Architectural Industry: Seals; Piston rings; Bushings;

Bearings; Slide bearings.

APPLICATIONS

• Chemical industry: - Solid pipe

and fittings; Liners for steel pipe

and fittings, Glass backed sheet

for lining vessels; Tubing; heat

shrinkable tubing

• Mechanical and Architectural

Industry: - Coated fabrics for

water repellency stain protection;

Coating films for panels, signs

etc.

• Electrical Industry: - Wire and

cable insulation.

Fluorinated Ethylene Propylene (FEP)

Perfluoroalkoxy (PFA) is melt processable. Its properties are similar to those of PTFE and include resistance to practically all chemicals, a useful temperature range, resistance to weathering, low coefficient of friction and excellent electrical insulation characteristics. It is, however, more expensive than PTFE and FEP resins. High purity grades are also available. It is not attacked by inorganic acids, bases, halogens, metal salt solutions, organic acids or anhydrides. Aliphatic and aromatic hydrocarbons, alcohols, aldehydes, ketones, ethers, amines, esters, chlorinated compounds and other polymer solvents have little effect.

Perfluoroalkoxy (PFA) Perfluoroalkoxy (PFA) is melt processable. Its properties are similar to those of PTFE and include resistance to practically all chemicals, a useful temperature range, resistance to weathering, low coefficient of friction and excellent electrical insulation characteristics. It is, however, more expensive than PTFE and FEP resins. High purity grades are also available. It is not attacked by inorganic acids, bases, halogens, metal salt solutions, organic acids or anhydrides. Aliphatic and aromatic hydrocarbons, alcohols, aldehydes, ketones, ethers, amines, esters, chlorinated compounds and other polymer solvents have little effect.

Key Points

• Maximum working temperature 260°C • Low gas permeability • High purity • Smoother surface texture than FEP or PTFE • High mechanical strength at elevated temperatures • UL94 V0 flame rating • Excellent electrical properties • Limiting oxygen index 95 • Gamma, ETO, e-beam autoclave sterilisable

APPLICATIONS

• Chemical industry: - Solid pipe and

fittings; Liners for steel pipe and

fittings, Glass backed sheet for lining

vessels; Tubing; heat shrinkable tubing

• Mechanical and Architectural

Industry: - Coated fabrics for water

repellency stain protection; Coating

films for panels, signs etc.

• Electrical Industry: - Wire and

cable insulation.

APPLICATIONS

• Chemical industry: - Solid pipe and

fittings; Liners for steel pipe and

fittings, Glass backed sheet for lining

vessels; Tubing; heat shrinkable tubing

• Mechanical and Architectural

Industry: - Coated fabrics for water

repellency stain protection; Coating

films for panels, signs etc.

• Electrical Industry: - Wire and

cable insulation.

Polyvinyl Fluoride (PVF) PVF (polyvinyl fluoride) is a member of the fluorocarbon family. It has outstanding resistance to weathering and good resistance to abrasion and steaming. It is used as a surfacing film for industrial, architectural and decorative building materials.

DELIVERY PROGRAM

Sheet: Normal Sheet sizes 1200 x 1200mm; 2000mm x 1000mm; 600mm x 600mm

Available Thicknesses: 1mm; 1.5mm; 2mm; 2.5mm 3mm; 4mm; 4.5mm; 5mm; 6mm; 8mm; 10mm; 12mm; 15mm ; 20mm; 25mm;

30mm; 40mm;50mm; 60mm; 70mm; 80mm; 90mm; 100mm; 110mm; 120mm;

Also Available In Rolls: 1200mm wide – Plain and Etched 1 side

Available Thicknesses: 0.25mm; 0.40mm; 0.50mm; 0.76mm; 1mm; 1.5mm; 2mm ; 2.5mm 3mm;

Rod: Normal lengths 3000mm; 2000mm & 1000mm

Available Diameters- 6mm; 8mm; 10mm; 12mm; 15mm; 16mm; 20mm; 25mm; 30mm; 35mm; 40mm; 45mm; 50mm; 55mm; 60mm; 65mm; 70mm; 75mm; 80mm; 85mm; 90mm; 95mm; 100mm; 110mm; 120mm; 130mm; 140mm; 150mm; 160mm; 170mm; 180mm; 200mm;

Tube: Normal lengths - 2000mm & 1000mm

Available Diameters: 10mm; 12mm; 15mm; 16mm; 20mm; 25mm; 30mm; 35mm; 40mm; 45mm; 50mm; 55mm; 60mm; 65mm; 70mm;

75mm; 80mm; 85mm; 90mm; 95mm; 100mm;105mm; 110mm;115mm; 120mm; 125mm; 130mm; 135mm; 140mm; 145mm; 150mm; 155mm; 160mm; 165mm; 170mm; 175mm; 180mm; 185mm; 190mm; 195mm; 200mm; 205mm; 210mm; 215mm; 220mm; 225mm; 230mm; 240mm; 245mm; 250mm; 255mm; 260mm; 265mm; 270mm; 280mm; 285mm; 290mm; 295mm; 300mm; 310mm; 320mm; 330mm; 340mm; 350mm; 360mm; 370mm; 380mm; 390mm; 400mm; 410mm; 425mm; 440mm; 450mm; 465mm; 480mm; 490mm; 500mm; 515mm; 530mm; 545mm; 560mm; 570mm; 590mm; 610mm; 620mm; 640mm; 655mm; 670mm; 680mm; 690mm; 700mm; 720mm; 740mm; 750mm; 770mm; 790mm; 815mm; 840mm; 880mm; 900mm; 910mm; 930mm; 950mm; 965mm; 1000mm; 1050mm; 1120mm; 1215mm; 1260mm; 1300mm; 1320mm; 1340mm; 1380mm; 1440mm;

APPLICATIONS

• Sample collection media

(chemical industry)

• Coating films for panels, signs

etc. (mechanical and

architectural industry)

• Release film, printed circuits

(electrical industry)

PROPERTIES of OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE)

CriteriaTest

MethodUnits PTFE PTFE - G PTFE -LG

PTFE -

HGPTFE - C PTFE -B PTFE - GR

PTFE -

CERFEP PFA Mod ETFE

Specific Gravity ISO 1183 g/cm³ 2,18 2,22 2,20 2,27 2,17 3,90 2,20 2,34 2,2 2,2 2,1

Specific Volume ISO 1183 cm³/g 0,46 0,45 0,46 0,44 0,46 0,26 0,46 0,43 0,46 0,46 0,48

Min Service Temp ⁰C -200 -200 -200 -200 -200 -200 -200 -200 -100 -100 -190

Max Service Temp ⁰C 260 260 260 260 260 260 260 260 205 240 150

Max Service Temp Short Term ⁰C 310 310 310 310 310 310 310 310 220 260 170

Melting Point ⁰C 327 327 327 327 327 327 327 327 240 280 185

Thermal Conductivity ISO 8302 W/(mK) 0,25 0,41 0,35 0,42 0,58 0,57 0,38 0,3 0,25 - 0,23

Deflection temperature at 1.80Mpa ISO 75 ⁰C 56 51 48 74

Deflection temperature at 0.45Mpa ISO 75 ⁰C 121 70 73 104

Specific Heat ISO 22007 J/g.K 1,00 1,00 0,85 0,95 0,80 0,80 1,00 0,85 1,12

Flammability UL-94 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0

Oxygen Index ASTM D621 % 530 280 530 630 530 530 35 94 30

Coefficient of Thermal Expansion ISO 11359 10ˉ⁵m/m⁰C 12,5 13,6 13,6 13,6 11,4 13,4 11,2 13,0 9,9 12,0 12,0

Impact resistance ISO 179 KJ/m² 0,16 0,173 0,17 0,18 0,169 0,161 0,17 0,2 no br.

Ball Indentation Strength ISO 2039 Mpa 30 30 32 45 30 50 35 60 28

Hardness ISO2039 Shore (D) 57 64 60 65 68 67 59 62 55 (D) 60 (D) -

Notched Izod Impact Strength ISO 180 J/m 187 no br. no br. no br.

Moisture Absorption ISO 62 % 0,05 0,05 0,05 0,05 0,05 0,05 0,05 0,05

Moisture Absorption at Saturation ISO 62 % 0,08 0,08 0,08 0,08 0,08 0,08 0,08 0,08

Resistance to UV/ Weathering NO YES YES

Wear 9 10 8 10 9 9 10 10 9 10 11

Friction Sliding Coefficient vs steel ISO 8295 Mpa 0,06 0,12 0,11 0,12 0,12 0,13 0,07 0,13 0,13 0,08 0,14

Friction Sliding Coefficient vs self ISO 8295 Mpa 0,06 0,12 0,11 0,12 0,12 0,13 0,07 0,13 0,15 0,12 0,16

Tensile Strength ISO 527 Mpa 22 17 25 12 14 16 17 20 21 27 45

Compressive Strength ISO 604 Mpa 4,5 7 6,5 7,5 8,8 8,2 7 6,8

Compressive Modulus ISO 604 Mpa 700 860 780 920 970 1050 870 990

Elongation ISO 527 % 300 225 275 230 138 175 225 190 300 300 275

Creep Strength Mpa 14 12 12 12 5 8 6 6

Flexural Strength ISO 178 Mpa no br. no br. no br. no br. no br. no br. no br. no br. no br. no br. no br.

Flexural Modulus ISO 178 Mpa 345 450 420 620 655 655 1378

Dielectric Strength, 3mm thk IEC243 kV/mm 19-23 12,6 N/A 95 15 19-23 19-23 15-19

Dielectric Constant at 1kHz IEC 250 2,1 2,1 2,1 2,6

Surface Resisitivity IEC 60093 Ω > 10⁷ > 10¹⁶ > 10¹² >10¹⁴ > 10⁷ > 10¹⁶ > 10⁵ > 10¹²

Volume Resistivity at 23⁰C, 50% RH IEC 093 Ω. Cm > 10¹⁸ > 10¹⁸ 2 x 10¹⁴ 10¹⁶

Dissipation Factor at 1kHz IEC 250 5E-05 0,0002 0,0002 0,0002 0,0002 0,0002 0,0002 0,0002 0,00005 0,0003 0,0008

Arc Resistance ASTM D495 s > 300 > 180 > 180 75

Refractive index ISO489 1,35 1,344 1,35 1,403

Transmittance ASTM D1003 (%) - >95 >95 -

Acids VG VG VG VG VG

Alkalis VG VG VG VG VG

Oils / Petroleum VG VG VG VG VG

Good Resistance

organic

solvents,

alcohols,

hydron

carbons,

fuels

hot water,

washing

soda,

organic

solvents,

alcohols,

hydron

carbons,

fuels

hot water,

washing

soda,

organic

solvents,

alcohols,

hydron

carbons,

fuels

Food Safe FDA YES YES YES YES NO NO NO NO YES YES YES

PHYSICAL

THERMAL

MECHANICAL

ELECTRICAL

CHEMICAL

OPTICAL

Tel: (08) 9412 3999 17 Biscayne Way, JANDAKOT WA 6164 Email: polytech@acrifabmanufacturing.com.au

www.polytech-plastics.com.au