E Glass Fibre Knitted Door Seal (Stainless Steel Spring Insert): our E Glass yarns are knitted around a stainless steel spring core. It has an excellent elastic recovery thanks to the internal stainless steel spring which considerably improves door sealing. It does not fray when cut and the external design gives it a good appearance.
The E Glass yarn is rated to 550°C with the Stainless Steel spring insert rated to 650°C.