
FS-Z Fireproof Module is made of inorganic polymer materials. It is widely used in the fireproof sealing of electric power, communicational wire, cable, electric control cabinet chasis, holes penetrated through the wall, cable horizontal wells, vertical wells and the cable trench firewall etc. When stacking this modules, it will utilize its own special structure to lock themselves together and is not easy to collapse, and it also have the characteristics of light weight.







Smoke non-toxic;
No halogen, sulfur and other toxic ingredients;
Long-term performance for more than 60 years;
Environmental protection;
High inflation in the fire;
High compression strength;
Good thermal insulation ability;
Moisture proof ;
Corrosion resistance;
Firm stacking ;
Good damping performance.
Clean the opening.
Trim the firestop module with a knife to fit the penetration size, then stack to seal the opening. Interlock the modules' concave-convex parts alternately; the self-locking structure ensures stable stacking against collapse.
Seal the cable gaps and the gaps between the firestop modules and the cables with FS-I firestop sealant—ensure the sealant fully fills the gaps without bubbles or gaps.
If necessary, install an identification label in a prominent position next to the fireproof sealing area for identification during later maintenance.

Remove or cut the fireproof module at the modified part.
Install the penetration, rebuild the fireproof module, and seal with intumescent fireproof sealant for re-penetration.
For a single cable re-penetration, it can directly pass through the joint between the fireproof modules, or a hole with a slightly smaller diameter can be drilled in the fireproof module with a sharp metal pipe or hose before penetration, and sealed with FS-I fireproof sealant.

Test items | Technical specifications | |
1 | Fire Resistance (Fₓₕ) | Fire integrity (E) ≥ 3h, fire insulation (I) ≥ 3h |
2 | Water Flushing Test Performance (C) | No holes causing large-area water leakage after water flushing test post fire resistance |
3 | Combustion Performance | Not lower than Class B2 for building materials specified in GB8624 |
4 | Smoke Toxicity | Not lower than ZA₂ in GB/T20285 |
5 | Air Tightness | ≤3.5m³/(m²·h) |
6 | Apparent Density | ≤2.0×10³kg/m³ |
7 | Compressive Strength | ≥1.0MPa |
8 | Corrosiveness | ≥7 days, no rusting or corrosion |
9 | Water Resistance | ≥3 days, no swelling or cracking |
10 | Oil Resistance | |
11 | Humid Heat Resistance | ≥120h, no cracking or chalking |
12 | Freeze-Thaw Cycle Resistance) | ≥15 cycles, no cracking or chalking |