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Expanded PTFE Sheets

Expanded PTFE Sheets

Expanded PTFE Sheets

Product catalog summary
Overview:
UNISIL Soft-Chem is a 100% pure expanded PTFE material known for its uniform and highly fibrillated microstructure. It is designed to provide universal resistance against most chemicals, excluding molten alkali metals and fluorine in liquid and gas states. The material is asbestos-free, meets FDA requirements, and is suitable for oxygen applications.
Specifications:
  • Color: White
  • Thickness: 1.5mm and 3mm (other thicknesses available on request)
  • Size: 1500mm x 1500mm (other sizes available on request)
  • Temperature Range: -240°C to +260°C, short periods up to 315°C
  • Operating Pressure: From vacuum to 3,000 psi
  • Chemical Resistance: Inert against all substances (pH 0-14), except molten alkali metals and elemental fluorine at high temperature and pressure
Properties:
  • Good sealability and flexibility
  • Highly compressible and resistant to creep and cold flow
  • Easy to cut and install
  • Low compressive load to seal
  • Can seal rough or damaged flanges
Performance Metrics (for 1.5mm thickness):
  • Compressibility: 60% (ASTM F 36)
  • Recovery: 12% (ASTM F 36)
  • Stress Relaxation: 38% (ASTM F38)
  • Tensile Strength: 11 MPa (ASTM F – 152)
  • Sealability: 0.16 ml/hr (ASTM F 37-B, nitrogen @60psig)
  • Density: 0.85 gm/cm3
Application Guidelines:
The document provides a decision field chart indicating when a technical examination is necessary based on operating temperatures and pressures. If conditions fall within certain fields, a technical examination is recommended to ensure suitability.
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Catalog excerpts

Expanded PTFE Sheets-1

U<L UNISIL soft-chem is a 100% pure expanded PTFE Material manufactured with special process that produces a uniform and highly fibrillated microstructure with a lot of fibers running in multidirection. UNISIL soft-chem possesses universal resistance against common chemicals, except melted alkali metal, fluorine at liquid and gas states. It is free from asbestos and other lung-intruding materials. UNISIL Soft-Chem The Softest PTFE material for applications where just minimal surface pressure are possible. Excellent compensation of irregularities of the Sealing Surface. UNISIL soft-chem is an asbestos free material and meets the FDA requirements, doesn't have any corrosion and is able to be stored without any time limits. Also suitable for oxygen applications. Properties: Color: White Thickness: 1.5mm and 3mm (other thicknesses available on request ) Size: 1500mm x 1500mm (other sizes available on request) Temperature range: Suitable for -240°C up to +260°C. for short period up to 315°C Operating pressure: From vacuum to 3,000psi Chemical resistance: Chemically inert against all substances (pH 0- 14), including the most aggressive acids and strong caustic alkaline solution (lyes). The only exceptions are molten alkali metals and elemental fluorine at high temperature and pressure. UNI KLINGER LIMITED. AN ISO 9001:2008 COMPANY

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Expanded PTFE Sheets-2

U<L General Features: • 100% Pure PT.F.E. • Good sealability • (Good flexibility • Highly compressible • RResistant to creep and cold flow • Easy to cut and install • Lowcompressive load to seal • Can seal rough or damaged flanges. (3 Typical values for 1.5mm thickness Compressibility ASTM F 36 Recovery ASTM F 36 Stress relaxation ASTM F38 Tensile strength ASTM F - 152 Sealability ASTM F 37-B (nitrogen) @60psig Density The fields of decision d If your operating temperatures and pressures fall within this field, a technical examination is normally unnecessary @ If your operating temperatures and...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.