A New Innovative water-resistant flame retardant for intumescent fireproof coatings
What is a Flame Retardant?
Flame retardants, also known as fire retardants or fireproof coating agents. They are additives used to enhance the fire resistance of materials. They prevent ignition and inhibit the spread of flames. Furthermore, they help prevent fires from occurring. When a fire does occur, they slow down its spread, reduce heat release, smoke, and toxic emissions. Most importantly, they increase the time available for safe evacuation.
What does flame retardant mean?
The primary mechanisms of flame retardants include:
- Heat Absorption: Flame retardants decompose and volatilize upon heating, absorbing heat and lowering the surface temperature of the combustible material, thereby providing a flame-retardant effect.
- Barrier Formation: Upon heating, flame retardants form a barrier layer that insulates and isolates the material from oxygen.
- Chain Reaction Interruption: Flame retardants capture free radicals produced during combustion, thereby delaying or terminating the combustion reaction.
- Non-combustible Gas Asphyxiation: Flame retardants decompose to release non-combustible gases that dilute the concentration of oxygen and flammable gases.
What is Intumescent Flame Retardant Paint?
Intumescent flame retardant paints and coatings are thermally reactive with a special formulation. At low temperatures, they act like inert, paint-like substances. However, they activate and expand when exposed to high temperatures. This process forms an insulating, foamy carbon layer. Consequently, this barrier protects structural substrates, such as wood and steel, from fire. It blocks heat transfer effectively.
During the initial heating phase, the intumescent fireproof coating absorbs a significant amount of heat energy. This causes a rapid temperature rise and initiates the expansion process. At around 250°C, inorganic acid sources decompose, releasing acid. Between 300°C and 350°C, blowing agents are activated. They absorb heat through an endothermic reaction and release a large amount of gas. Part of this gas forms bubbles (10μm to 60μm in diameter) on the coating surface. The rest remains in the molten coating. As the molten fluid hardens, it releases residual volatiles. Ultimately, this process forms a multicellular char layer. This porous carbonized thermal barrier has low thermal conductivity and high insulation efficiency. It prevents heat transfer and oxygen diffusion.
H-112D High Water-Resistant Phosphorus-Nitrogen Intumescent Flame Retardant
It is well known that traditional water-based fireproof coatings have significant water resistance issues. To address this industry pain point, SiO New Material has developed a new integrated high water-resistant intumescent flame retardant-H-112D. As a substitute for the traditional APP+MEL+PER ternary system flame retardants. The main feature of H-112D flame retardant material is its applicability in water-based fireproof coatings for indoor humid environments and outdoor settings, with outstanding water resistance.
This product addresses many water resistance problems associated with traditional ternary flame retardants. It has a simple single-component application, is cost-effective, and shows great application prospects.
Product Features
1. Excellent Water Resistance: H-112D can be used in water-based fireproof coatings for both
indoor humid and outdoor environments.
2. Stable in Water: H-112D does not precipitate or migrate in water, ensuring good storage
stability of the resulting coatings.
3. Color Customization: Fireproof coatings using H-112D can be tinted as desired, without
blooming or frosting upon exposure to water or moisture.
4. Single-Component Application: Only one component is needed to meet fire performance
requirements, making it easy to use.
5. Thixotropic Properties: Coatings made with H-112D are less prone to sagging, allow for
high single-coat thickness, and shorten application cycles.
6. Synergistic Effects: When used with compatible emulsions, H-112D can achieve excellent
intumescent properties, with an expansion ratio of over 50 times.
7. Durability: Fireproof coatings made with H-112D exhibit excellent durability, with no
significant reduction in coating adhesion.
Technical Parameters
| Model | H-112D |
| Appearance | White Granules |
| Bulk Density | Approx. 640kg/m³ |
| Active Ingredient Content | ≥95% |
| Water Solubility | ≤0.05g/100ml water |
| Phosphorus Content | 12% (±1%) |
| Nitrogen Content | 18% (±1%) |
| pH Value | 6 (±1) |
| Average Particle Size | 1mm-1.5mm |
Safety and Protection
When handling the product, wear protective masks and rubber gloves to avoid direct skin contact. However, if accidental contact occurs with eyes or skin, rinse immediately with water.
Conclusion
Choosing SioResin Intumescent Flame Retardant products means choosing reliable quality and advanced technology. We will continue to focus on product innovation and technological upgrades, consistently providing customers with better solutions. If you are interested in our products(Polyurethane Resin, Silicone Resins, UV Cure Resin, Silicone Rubber, intumescent fireproof coatings, wetting agents, curing agents, associative thickeners, driers, soft-touch agents, and other additives, .etc) or would like more detailed information and sample testing, please feel free to contact us. We look forward to exploring more cooperation opportunities with you.