- Material: black NBR - Hardness (Shore A) 70 - Flexible seal supplied by the metre Uses - Seals doors, panels and other assembled structures against dust, water , noise pollution etc... Assembly - Insert the seal into the slot of the profile 1 When using 1 seal, leave a gap of 5-8mm 1 2 When using seals on both profiles, a gap of 10-15mm is required 2