Tufline Lined Accessories have cast dovetail recesses and machined grooves that lock the lining to the body casting.
Blow-out or lining collapse are virtually impossible. PFA is the standard lining material for all Tufline Lined Accessories.
PFA is a fluoropolymer with extended temperature limits. It is a copolymer that combines the carbon-fluorine backbone of fluorocarbons with a perfluoroalkoxy side chain.