Fire Door Intumescent Strip

The fire door intumescent strip is made of the PU foam materials and with graphite intumescent and flame-resistant material inside, and it swells up when exposed to heat, which prevent the heat and smoke from spreading to other area and ensure safety. The fire door seal is frequently used in timber fire door, fire proof window and door, fire proof glass door, etc. to seal the gap between frames and doors for a tight seal. Our fire door strips come in multiple sizes according to the required fire resistance, ask us for a quote anytime you want.

Description

Fire Door Strips Features

Material
PU foam, Graphite intumescent material, Flame-resistant material
Color
Brown
MOQ
3,000 meters
Packing
Packed in rolls with cartons or customized to customer needs
Manufacturing process
Made of PE film and liquid PU foam through dispensing technology and thermoplastic process combined.

 

Fire Door Seal Technical Data Sheet

Serial No. Test Item Standard Requirements Field Test Results Single Decision
1 Appearance Pressure pit, uneven thickness, swelling body, obvious fall off or powder, and other defects. It fits the bill Qualified
2 Allowance for size Width deviation ± 10% 0.75% Qualified
Thickness deviation ± 10% 0.66%
3 Intumescent performance The deviation between the ratio of the intumescent body and n。announced by the company ≤15% 4.50% Qualified
4 Aging resistance Press the surface of the fire door intumescent strip body after the test with a glass rod, has no obvious powder and falling off. It fits the bill Qualified
The ratio of the intumescent body after the test is not less than the initial ratio n. 21.06ml/g Qualified
5 Moisture resistance After the water resistance test, the fireproof intumescent seal strip have no obvious corrosion, swelling, powder and falling off. It fits the bill Qualified
The rate of the composite expansion body after the water resistance test is not more than 5%. 2.32% Qualified
The fireproof intumescent seal strip after the water resistance test is not less than the initial ratio n. 21.06ml/g Qualified
6 Acid resistance After the acid resistance test, the fireproof intumescent seal strip has no obvious corrosion, swelling, powder and falling off. It fits the bill Qualified
The rate of the composite expansion body after the acid resistance test is not more than 5%. 2.53% Qualified
The fireproof intumescent seal strip after the acid resistance test is not less than the initial ratio n. 20.73ml/g Qualified
7 Alkali resistance After the alkali resistance test, the fireproof intumescent seal strip has no obvious corrosion, swelling, powder and falling off. It fits the bill Qualified
The rate of the composite expansion body after the alkali resistance test is not more than 5%. 2.03% Qualified
The fireproof intumescent seal strip after the alkali resistance test is not less than the initial ratio n. 20.16ml/g Qualified
8 Signs Conformity label, the label shall be affixed correctly, content and products consistent It fits the bill Qualified
9 Packing Packing should be in line with the “Packaging Inspection Reference” requirements, carton printing should meet the requirements, packaging belt tightness moderate, turns meet the requirements It fits the bill Qualified

 

Fire Strips Applications

  • Timber fire door
  • Fire proof window and door
  • Fire proof glass door

 

Advantages of Intumescent Strips

  • Excellent fire resistance, tight sealing effect.
  • Strong adhesive with double-sided tape, stable to fix in the right place, easy to install.
  • High-density PU foam, excellent sound insulation.
  • This fire door strip is environmental friendly and it can bring a safe and healthy life.
  • Protective PE film helps prevent aging, tear, and corrosion, providing a long service life.
  • Tough materials with smooth coating, durable to use.
  • It swells up when exposed to fire, to keep a stable sealing effect.

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