Different from the smoke seals, they have black single or twin rubber blades (see options) instead of the nylon brush. Each strip is 2.1 metres long and has an adhesive backing and is available in white or brown with other colours on request - grey, black, light brown, red or cream (special colours can be made to order in 2 days). 

Note - a more popular version is the hygienic fire and smoke seal. (Strips may be supplied in two 105cm lengths for ease of shipping.) 

Please select the size from the options below: 10mm wide x 2.1m long x 4mm deep = 30 minutes, 15mm wide x 2.1m long x 4mm deep = 30 minutes, 20mm wide x 2.1m long x 4mm deep = 60 minutes