Constant seating stress gaskets function as flange-interface fulcrums. That’s a difficult term to interpret, especially for non-engineering types. Picture a gasket with a uniform carrier ring. This incompressible metal annulus absorbs the bulk of sealing stress as a ring of pattern-tightened bolts pulls two flange faces together. Cleverly placed at a stress-neutral location on the […]
Polyurethane is a remarkable material. Used in gaskets, the infinitely adaptable polymer takes advantage of its resilient molecular structure to create a whole range of industry-leading products. Adhesive substrates and industry foams have drafted in many different urethane enhanced products. Similarly beguiled by the polymer’s application resistive properties, the gasketing sector hasn’t been slow in […]
Polytetrafluoroethylene, which is also known by abbreviation aficionados as PTFE, is a versatile gasket material. It’s a fluoroelastomer, a synthetic compound that’s available in many forms. On switching over to ePTFE (Expanded PTFE), the carbon-fluorine compound gains new mechanical properties. Classed as a popular sealing material because of a talent for resisting chemical attacks, ePTFE […]
Once upon a time, so the story goes, asbestos gaskets were commonly in-use because they provided exceptional thermal strength. The fibrous, silicate-based mineral obviously still exhibits superior heat-resistance fortitude, but asbestos is now recognized as an environmentally hazardous material, too. Known for some time now, the tiny fibres cause life-threatening lung diseases. No matter, a […]
Aggressive chemicals can “burn” though ill-suited gasketing materials. Solvents, strong acids, caustic alkalis, all of these substances are capable of causing corrosive fallout. As an unsuitable seal material erodes, the corrosive chemicals then leak and pool. Depending on the nature of this caustic chemical leak, it could then vapourize and take flight. Clearly, on contemplating […]
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