From 7990 Gasket material in rubberised cork. Pay & Collect Submit your order now and collect your items at your local Biltema store in 2 hours! This is how Pay & Collect work Easy to cut to the desired size and shape. Suitable for use with valve head covers, oil sumps, thermostat housing, rear axles, differential housing, etc. Sheets of 250 x 500 mm or roll 500 x 1000 mm.