GF Piping Systems has announced a re-design of its mechanical joint for the Fuseal corrosive waste piping system. The new joint features an EPDM O-Ring seal that accommodates system expansion and/or contraction as well as intermittent temperatures up to 210°F. The system is resistant to the corrosive action of alkalis, alcohols, acids, solvents and salt solutions, and according to the company, waste streams that rapidly degrade metallic pipe, such as dilute mineral acids and aqueous acid salts have no effect on the Fuseal system. They say that it will not rust, pit, scale, corrode or be affected by electrolysis. The new Fuseal mechanical joint seal provides for up to 1 inch of expansion or contraction during temperature cycling without losing the seal, allowing customers to place it in continuous temperature services as high as 180°F and intermittent temperature services up to 210°F.