
UL/En/Ei Tested Intumescent Fire Seal Fire Door Seal. Fire and Smoke Prevention: Provides integrity and insulation against fire, smoke, and acoustic transmission. High Expansion Ratio: Expands 15 to 30 times when exposed to heat for effective sealing. Durable Material: Made of expandable graphite, unaffected by moisture, humidity, and chemicals. Easy Installation: Features good quality adhesive tape and is easy to cut for custom fits. Certified Safety: UL, EN, and EI tested for fire door and window applications. Customizable Colors: Available in Red, White, Black, Brown, or customized to specific requirements. OEM Service: Supports customization based on customer drawings or samples. Quality Control: Professional QC staff ensure production matches confirmed samples.