Suzhou Volsun Electronics Technology Co., Ltd.
| Quantity: | |
|---|---|
FST80BBS
Volsun
FST80BBS is a two-component moisture-proof and fireproof sealing compound for electrical cabinets, switchgear, box-type substations, cable branch boxes, ring main units, terminal boxes and cable entry areas. With low viscosity and good fluidity after mixing, it can flow into gaps and self-level on the sealing surface before curing.
After curing, the material forms an elastomeric protective barrier that helps seal cabinet bases, cable entries and cable trench openings against moisture, dust, toxic gas and small-animal intrusion. It bonds tightly to cable sheaths and surrounding building structures without corrosion reaction, helping improve moisture protection and fireproof sealing reliability in power, communication and rail transit applications.
| Item | Value |
|---|---|
| Product Model | FST80BBS |
| Product Type | Two-component moisture-proof and fireproof sealing compound |
| Appearance | Gray |
| Viscosity after Mixing | ≤5000 mPa·s |
| Surface Drying Time | ≤60 min |
| Oxygen Index | ≥32% |
| Flammability | V-0, UL94 test method |
| Dielectric Strength | ≥15 kV/mm |
| Shore Hardness | 30 ± 5 Shore A |
| Package Options | 1 kg kit / 10 kg kit |
Moisture and waterproof sealing: Helps block moisture, humidity and condensation from entering electrical cabinets and cable entry areas.
Fireproof and flame-retardant performance: Oxygen index ≥32% and UL94 V-0 flammability rating.
Good fluidity before curing: Flows and self-levels on the sealing surface after mixing, helping fill gaps around cable entries and cabinet bases.
Tight bonding: Bonds to cable sheaths and surrounding building structures without corrosion reaction.
Multi-barrier protection: Helps resist dust, toxic gas intrusion and small-animal entry.
Elastomeric cured structure: Forms an elastomer after curing and is designed to resist cracking, deformation and deterioration.
Low-smoke and halogen-free: Suitable for electrical environments requiring cleaner and more reliable sealing materials.
Easy application: Two-component system that can be mixed and poured without auxiliary tools.
FST80BBS is designed for moisture-proof and fireproof sealing in electrical equipment and cable routing areas, especially where cables pass through cabinets, trenches, tunnels or building openings.
Typical applications include:
High and low voltage switchgear sealing
Box-type substations and cable branch boxes
Ring main units and terminal boxes
Cable entries at cabinet bases
Cable trays, cable tunnels and cable trenches
Cable penetrations through walls and floors
Power systems, communication systems and rail transit electrical equipment
Properties | Typical Data | Test method |
Appearance | Gary | Visual inspection |
Viscosity (after mixing) | ≤5000mPa·s | ASTM D2196 |
Opening hours | ≤30min | / |
Surface drying time | ≤60min | GB/T 13477.5-2002 |
Oxygen index | ≥32% | GB/T 2406.2-2009 |
Flammability | V-0 | UL94 |
Density | 1.35±0.1 g/cm3 | GB/T 1033.1-2008 |
Shore Hardness | 30±5（Shore A） | GB/T 531.1-2008 |
Breakdown strength | ≥15kV/mm | GB/T 1695-2005 |
Tensile strength | ＞0.6 MPa | GB/T 528-2009 |
Elongation at break | ＞100% | GB/T 528-2009 |
Type | Package |
FST80BBS（1kg） | A component 0.91kg, B component 0.09kg |
FST80BBS（10kg） | A component 9.3kg B component 0.7kg |
Clean the target sealing area and remove dust, debris, oil and other contaminants.
Seal holes and gaps at the bottom with fireproof mud before pouring the compound.
Open Component A and stir it fully if any material has settled at the bottom.
Pour Component B into Component A according to the specified package ratio.
Mix thoroughly until the material is uniform in color and consistency.
Pour the mixed compound into the target sealing area before the working time expires.
Allow the material to self-level and cure to complete the installation.
Stir Component A thoroughly before mixing if any sediment is found at the bottom of the container.
Use the mixed material promptly after Component A and Component B are combined, as curing will begin after mixing and air exposure.
Make sure the application area is clean and free from large debris, dust, oil or other contaminants to avoid affecting adhesion.
Avoid contact with eyes and mouth. In case of accidental contact, rinse with clean water and seek medical attention if necessary.
Follow the specified package ratio and do not dilute or modify the material unless approved by VOLSUN.
