Technical Specifications | APG

Soft-Chem - 100% Virgin PTFE Sheets

Written by APG | Nov 28, 2022 9:34:24 PM

APG’s soft-chem - 100% Virgin PTFE Sheets provide excellent corrosion resistance and impermeability along with superior creep resistance and sealability for use in all types of applications. A proprietary manufacturing process results in a uniform and highly fibrillated micro-structure with equal tensile strength in all directions. And its superior memory characteristics ensure that bolts remain tight, so re-torquing is not necessary. The material’s high compressibility enables it to deform under load and conform to irregularities in flange faces for a tight seal with low, minimum sealing stress. Standardizing with it also helps to reduce maintenance, simplify inventory, and save money.

Benefits & Features

Features

  • Max Pressure: 2900 psi

  • Mechanically bonded tanged stainless-steel insert

  • Temperature Range: -450℉ - 500℉

  • Excellent resistance to chemical attack

  • Flexibility makes it easy to hand or die cut and simple to install

  • Indefinite shelf life

  • Dimensionally Stable

Applications

  • High temperature water & steam

  • Chemical

  • Alkalis / Ketones / Aldehydes

Certifications

  • DIN-DVGW

  • KTW-Guideline

  • Fire-safe acc. to DIN EN ISO 10497

  • German Llyod

  • BAM tested

Product Specifications

Typical Values Refer to 1/16'' Thick Material Unless Noted

Pressure limit 2900 psi
Temperature range -450℉ to 500℉
Compressibility ASTM F36A
45 %
Recovery ASTM F36A
14 %
Stress relaxation DIN 52913 15 MPa
Tensile ASTM F152 > 20 MPa
Density 56 lb/ft3 (0.90 g/cm3)%
Color White

 

 

Pressure/Temperature Graphs

The pressure/temperature graphs shown are the most current method of determining the suitability of a gasket material in a known environment. However, chemical compatibility must also be considered.

IIn area 1 the gasket material is suitable using common installment practices subject to chemical compatibility

IIn area 2 appropriate measures are necessary for installation of the gasket to ensure maximum performance.

IIn area 3 do not install gaskets in these applications without first contacting APG for technical support service.