Based on continuous research and development, as well as strict material inspection and quality inspections, Bosslong Yuanji offers one of the highest standard of sealing function.Fire & smoke seal has been designed for use in fire resisting doors to retard the passage of smoke in a fire situation.

Exfoliated graphite core – expansion 20 fold volume once triggered by heat .
Pile - 6mm in height from PVC holder which is ideal for sealing the average gap of 3mm to 4mm between doors and frame.
PVC casing - various colors, Wood grain pattern are available upon request.
Self adhesive fixing.