1. Product Overview
Flame-retardant PP sheets are based on polypropylene (PP) resin modified with environmentally friendly flame-retardant additives and then extruded into boards. The material retains the low density, good stiffness, corrosion resistance and weldability of PP, while gaining improved self-extinguishing performance and reduced flame spread.
- Material base: Polypropylene (PP) with flame-retardant additives.
- Form: Flat boards with smooth or lightly textured surfaces, uniform thickness and good flatness.
- Processing: Compatible with cutting, drilling, CNC machining, hot-air welding and butt-welding.
2. Key Features
Flame-Retardant Performance
- Reduced flame spread: Compared with standard PP, flame-retardant grades help slow down ignition and flame propagation when exposed to fire sources.
- Low smoke and toxicity (depending on formulation): Halogen-free flame-retardant systems can help reduce smoke and corrosive gases in case of fire.
- Stable performance: Flame-retardant properties are incorporated into the material rather than being just a coating, improving long-term reliability.
Chemical & Mechanical Properties
- Chemical resistance: Good resistance to many inorganic acids, alkalis and salts found in chemical and wastewater environments.
- Mechanical strength: Sufficient stiffness and toughness for panels, covers, ducting and structural components when correctly supported.
- Low density: Much lighter than metal; easier to handle, install and support on frames or structures.
Electrical & Insulation Properties
- Good electrical insulation: Suitable for components around electrical systems, cable channels and control cabinets.
- Low water absorption: Maintains insulation performance in humid or splash-prone environments.
Processing & Fabrication
- Excellent weldability: Can be joined by hot-air or butt welding to fabricate tanks, ducts, scrubbers and custom equipment.
- Easy machining: Can be cut, drilled, routed and CNC machined using standard plastic fabrication tools.
3. Typical Applications
- Chemical & environmental equipment: Flame-retardant linings and panels for tanks, scrubbers, exhaust gas treatment units and washing towers.
- Ventilation & ducting systems: Air ducts, fume extraction pipes, exhaust plenums and housings in chemical plants, laboratories and industrial buildings.
- Electrical & equipment rooms: Panels and protective boards in cable tunnels, electrical cabinets, battery rooms and control rooms where both insulation and fire performance are important.
- Water & wastewater treatment: Boards for covers, partitions and structural components around tanks and channels in treatment plants.
- Public and commercial facilities: Protective cladding, partition boards and service-area panels where materials must offer both chemical resistance and improved fire safety.
4. Specifications & Customization Options
| Item | Typical Range / Options | Notes |
|---|---|---|
| Material | Flame-retardant polypropylene (PP) | Halogen-free formulations available on request |
| Flame-Retardant Grade | Customizable according to project standard | Specify required test method/level when inquiring |
| Thickness | Approx. 3 – 40 mm | Special thicknesses available on request |
| Width | Commonly 1000 – 2000 mm | Max. width depends on extrusion capability |
| Length | Standard lengths or custom cut-to-size | Optimized cutting according to your drawings |
| Color | Grey, black, white or custom colors | Color coding for zones, media or branding |
| Surface Finish | Smooth or lightly textured | Textured surface helps hide scratches |
| Chemical Resistance | Many acids, alkalis and salts | Check compatibility for strong oxidizing media and special solvents |
| Water Absorption | Very low | Suitable for humid, splash or immersion environments |
| Service Temperature | Typical PP operating range | Exact limit depends on load, safety factor and project conditions |
| Fabrication Options | Cutting, drilling, CNC machining, hot-air welding, butt welding | Supports complete equipment fabrication from drawings |
| Main Industries | Chemical, environmental, ventilation, electrical, building services | One flame-retardant sheet solution for multiple sectors |
For tailored flame-retardant PP sheet solutions, please provide your application scenario, required flame-retardant standard, working medium and temperature, thickness, sheet size, quantity and drawings. We will recommend a suitable formulation and offer machining and fabrication services to support your project.
