Intumescent Material2019-06-19T15:41:08-04:00

INTUFX™(Intumescent Fire Expandable) Legacy Rubber’s intumescent material expands rapidly when exposed to heat or high temperatures. This stops fire expansion through the gaps around doors. Type #3 expands up to 30 times and Type #4 expands up to 120 times.

Other expansion rates and material sizes are available! Please contact us for other non-standard option.

Purchase Intumescent in sheets,
custom cut or by our popular sizes below.

  • Standard Color is Red
  • INTUFX Type #4 – 120 times expansion
  • Environmentally Safe, Minimal Carbon Footprint
  • Used in Fire applications
  • Adhered to Galvanized Steel Sheet during formation, without the use of flammable adhesive bonds.
  • Option to adhere to Wood.

INTUFX™
Type #3

30X expansion

  • Used in Fire/Acoustical applications
  • INTUFX™ Type #3 – 30 times expansion
  • Environmentally Safe, Minimal Carbon Footprint
  • Standard Color is Black (BK). Available in Red (RD).
  • Optional Pressure Sensitive Adhesive – Specify PSA.

13212 Intumescent

13244 Intumescent

13212 Intumescent

13244 Intumescent

13219 Intumescent

13319 Intumescent

INTUFX™
Type #4

120X expansion

  • Used in Fire applications
  • INTUFX™ Type #4 – 120 times expansion
  • Environmentally Safe, Minimal Carbon Footprint
  • Standard Color is Black (BK). Available in Red (RD).
  • Optional Pressure Sensitive Adhesive – Specify PSA.
  • Optional – Laminated to wood, aluminum, steel or other solid materials.

14212 Intumescent

14244 Intumescent

14212 Intumescent

14244 Intumescent

14219 Intumescent

14312 Intumescent

Electrical Box Intumescent Inserts

120X expansion

  • Used in Fire applications
  • Standard Color is Red (RD). Optional Black (BK)
  • INTUFX Type #4 – 120 times expansion
  • Environmentally Safe, Minimal Carbon Footprint
  • Electrical Box not included
  • 1/8″ Thickness or 1/4″ Thickness
  • Up to 90 minutes Fire Rated