Anti-Condensation Fireproof sealant (Intumescent)
V-0 Rated, Non-Expanding, Polyurethane -Based sealant for switchgear
AY New materials’ Intumescent anti-condensation fireproof sealant for electrical cabinets and switchgear. V-0 rated, Polyurethane-based, self-leveling, flexible, moisture-resistant. 1 hour protection for the electrical system
Smooth, Flexible
Popular application
Switchgear
Pad-Mounted Transformers
Outdoor RMUs
Key Features
- High Fire Resistance: V-0 rated, withstands >1 hours fire exposure
- Moisture & Condensation Protection: Prevents corrosion and condensation inside electrical enclosures
- Electrical Safety: Dielectric strength ≥ 2 kV/mm
- Full-Seal Protection: Excellent gas-tightness, water-tightness, and smoke-tightness
- Chemical Stability: Non-corrosive, non-cracking, long-term durability
- Environmentally Friendly: Halogen-free, solvent-free, no smoke toxicity
- Durable & Flexible: Remains elastic after curing, allows for secondary maintenance
- Universal Compatibility: Compatible with metal and non-metal enclosures, cable sheaths, and electrical equipment
V-0 Class， 1 hour
Anti-condensation
Self-leveling
>550% expansion
High&low temperature resistant
Applications
- Ring Main Units and Outdoor RMUs
- High & Low Voltage Switchgear
- Pad-Mounted Transformers and Distribution Substations
- Cable Distribution Cabinets, Terminal Boxes, and Outdoor Electrical Enclosures.
Scenarios
Data Sheet
Type
Polyurethane
Color
Dark Grey
Fire resistant time
1 hour
Flame retardant rating
V-0
Surface Drying Time
30min
Water Absorption
<1%
Oxygen Index (%)
34-48
Electric Strength
>2 kV/mm
Water resistance
Yes
Acid resistance
Yes
Alkali resistance
Yes
Oil resistance
Yes
Damp heat resistance
Yes
Corrosion resistance
Yes
Expansion performance
>550%
FAQ
What is the difference between non-intumescent sealant & Intumescent sealant ?
Both types of products can be used for condensation-proof and firestop sealing in electrical cabinets. The difference lies in the fact that foaming sealant forms a more porous structure after curing, with a fire resistance rating of 1 hour, while non-foaming sealant forms a denser structure, offering 3 hours of fire resistance. The choice depends on specific requirements.
When applying foaming sealant, it is important to pay attention to the available space and volume, as the material expands during curing.
Check here to know more about Non-intumescent sealant
How is the firestop & anti-condensation sealant applied?
Clean the working surface, ensuring it is dry, and install formwork if necessary.
Fill all gaps and penetrations thoroughly to prevent material leakage.
Mix Component A and Component B at a ratio of 1:1 until uniform.
Pour the mixture evenly.
Allow it to cure undisturbed.
Is this firestop material suitable for outdoor or coastal power installations?
Yes. The sealant offers excellent moisture resistance, corrosion resistance, and long-term stability, making it ideal for coastal substations, outdoor electrical cabinets, and industrial facilities exposed to salt air and humidity.
How does it differ from common anti-condensation sealants on the market?
Most conventional sealants are not fire-resistant and primarily provide sealing, with only a few offering anti-condensation properties.
NEW AY’s material is a polymer-based compound with an oxygen index exceeding 34, providing superior fire resistance and more stable performance.
What packaging sizes are available?
The available sizes are: 2.2 kg, 4.4 kg, 5.5 kg, 22 kg, and 220 kg.
Can this firestop sealant be used alongside other fire protection products in a project?
Yes. In many power projects, AY firestop sealants are used together with firestop coatings, firestop foams, or fire-resistant boards to form a comprehensive fire protection and sealing system, especially in substations and electrical rooms.