With red adhesive backing

With black adhesive backing

Graphite-based fireproof expansion strip

GRAYMATTER is a flexible, intumescent fireproof seal made from the expanding material in fire, graphite. When exposed to the flames, the thermoplastic matrix expands at least 30 times its original thickness. The microporous layer formed during the expansion process prevents flames, smoke, and hot gases from passing through the gaps in fire-resistant components.

PRODUCT FEATURES

*Has excellent flexibility
*Easy to cut
*Delivery of parts in rolls or cut to size

*The expansion ratio in case of fire is relatively high
*The surface can be attached with double-sided tape for easy installation
*Good weather resistance

PRODUCT DATA

SIZE RANGE (mm)
Expansion Strip (Red Adhesive/Black Adhesive):

2*10/15/20/25mm

2*10/15/20/25/38/40mm

EXPANSION FACTOR
15 times
30 times

THICKNESS
Standard thickness: 2mm
Suitable for most fireproof joint sealing applications

INITIAL EXPANSION TEMPERATURE
180℃
Suitable for rapid response in fire scenarios

EXPANSION FACTOR
At 750℃ for 30 minutes, it can expand to 9-30 times its original thickness.

EXPANSIVE PRESSURE
The expansion pressure at 300℃ is 0.35-0.65 N/mm²

WEIGHT
3.10 kg/m²

DENSITY
1.55 g/cm³

COMPRESSIVE STRENGTH
1.2 N/mm² (at room temperature)

ANTI-AGING PERFORMANCE
Has good weather resistance and aging resistance in high humidity and high temperature environments.

*For other specifications and shapes, please contact us.

APPLICATION SCENARIO

Fireproof expansion strips are suitable for perimeter sealing in fire protection systems (doors, shutters, valves, cabinets, partitions, cable passages, etc.) and enhance the fire resistance of building components.

USAGE SUGGESTIONS

Fireproof sealant suitable for construction and industrial applications such as door frames, wall gaps, and cable wall penetrations.
It is recommended to embed it directly into the gaps, where it will rapidly expand during the early stages of a fire to form a sealing barrier.
Suitable for scenarios requiring a fire resistance of 60 minutes or more, and complies with the req-uirements of major fire protection building codes.
Standard roll packaging (each roll is 20m long, width can be customized).
Use moisture-proof plastic bags or vacuum packaging to ensure the stability of the materials during transportation and storage.
Store in a dry, ventilated environment, avoiding direct sunlight and high temperatures.
Recommended storage temperature is between 0℃ and 30℃.
The shelf life is 2 years under standard storage conditions.
Avoid heavy objects pressing on it to prevent material damage; avoid contact with acidic or alkaline substances to prevent affecting its fire-resistant properties.

Contact us

Mailbox:tengtianyou06@gmail.com

WhatsAPP: +86 136 4212 1423

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