Round intumescent insert
A sodium silicate based insert with a circular cross-section for compatible round filling spaces.
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Ceramic fibre board bonded to a 2 mm BYZHI 100 layer for steel-profile cavities. Only the BYZHI 100 layer expands under heat to close gaps; the ceramic layer provides insulation. Standard total thicknesses: 8, 10 and 12 mm; custom sizes available.
Product data sheets are supplied as Chinese-language PDFs.


| Model | BYZHI CI |
|---|---|
| Products | Fire protection fillers & insulation |
Product performance must be confirmed against the complete installed assembly and relevant test documentation.
Download data sheet · PDF ↗Please share the application, substrates, opening or joint dimensions, target fire protection requirements and available installation space.
Discuss dimensions, cutting and fabrication requirements. Supply specifications are subject to agreed drawings and product details.
A sodium silicate based insert with a circular cross-section for compatible round filling spaces.
View productSolid and hollow graphite rods in 5, 6 and 8 mm diameters. Heat expansion supports flame and smoke closure within profiles.
View productAvailable in white, black and intumescent variants for cushioning and insulation within fire protection assemblies.
View productDiscuss dimensions, cutting and fabrication requirements. Supply specifications are subject to agreed drawings and product details.