Expanded PTFE is white in colour and a very soft material. Virgin PTFE is stretched in multiple directions and expanded using no fillers, colours, pigments, oil, ink or adhesive and is 100% pure.
This material can easily conform to any irregular flange face, even sealing scored flanges. When in situ Expanded PTFE doesn’t even require an increase in bolt load to seal these uneven flanges. Extremely easy to cut, flexible, versatile and perfect for use sealing against sensitive materials like glass.
Max recommended temperatures : -240°C to +310°C
These temperature and pressure guides cannot necessarily be used
simultaneously and may not apply to all thicknesses.
Food Safe FDA 21 CFR 177.1550
ALL PRESSURES AND TEMPERATURES ARE SUBJECT TO INDIVIDUAL APPLICATION
TYPICAL PHYSICAL PROPERTIES EXPANDED PTFE
|Creep Relaxation||ASTM F38||31.0%|
|Matrix Tensile Strength||5000 – 6800 psi|
|Specific Gravity||ASTM D792||0.55 – 0.65|