PPs sheet - flame retardant
PPs sheet introduction：
Material: Polypropylene
Color: White/Gray/Beige
Form: Sheet
Length: 2M/2.44M/3M/6M
Width: 1M/1.22M/1.5M
Thickness: 3MM/4MM/5MM/6MM/8MM/10MM/12MM/15MM/20MM
Process: Extruded
Flammability rating: V2
Polypropylene sheet Features:
- Low flammability
- High chemical resistance
- Electrical insulation properties
- Long lasting
- High temperature resistance
- Ldeal for HVAC applications
- Easy welding process
- Lightweight
- Flame retardant material
Field of use
- Pharmaceutical and bioindustry
- Ventilation Duct Fabrication
- Chemical storage tank
- Environmental protection equipment processing
Approval/Certification
What is Flame-retardant PP polypropylene sheet?
Flame-retardant PP (polypropylene) sheet is a chemically treated plastic sheet, adding an equal proportion of flame retardant to the raw material, which has the effect of resisting combustion and reducing flame spread. The sheet is made from a thermoplastic polymer called polypropylene, known for its lightness, durability and chemical resistance.
The flame retardant treatment makes PP panels suitable for applications where fire safety is important, such as the construction industry for wall panels and ceilings, or the transportation industry for vehicle interior components. Flame retardant PP sheets can also be used in electrical and electronic applications where there is a fire hazard.
The effectiveness of flame retardant PP panels depends on the specific treatment method used and the thickness of the material. Depending on the intended application, the sheet may also have other properties such as UV resistance, impact resistance and high temperature resistance.
How to weld the polypropylene sheet?
Welding polypropylene sheets can be accomplished through a process known as "hot gas welding." Here are the steps to weld PP sheets using this method:
Prepare the surfaces: Clean the surfaces that will be welded thoroughly. Ensure that there are no contaminants, debris, or oils present. You can use a cleaner designed for polypropylene or isopropyl alcohol.
Mark the weld line: Use a marker to draw a line where the welding will occur.
Preheat the PP sheets: Use a hot air gun to preheat both sheet along the weld line. The temperature should be around 240-260°C. Preheating helps to soften the polypropylene and prepare it for welding.
Weld the sheets: Once the polypropylene sheets are preheated, use a plastic welding rod that matches the material of the sheets. The rod is melted by a hot air gun and used to fill the gap between the two sheets. The gun and rod are moved along the weld line at a steady pace until the sheets are welded together. Ensure that the melted rod is evenly distributed, and there are no gaps.
Cool the PP sheets: After welding, allow the PP sheets to cool down gradually. Do not cool them rapidly as this can cause warping or cracking.
Trim excess plastic: Once the PP sheets have cooled down, any excess plastic that has accumulated along the weld line can be trimmed using a sharp knife or a rotary tool.
Hot gas welding can be a delicate process and requires some practice. If you are unsure about performing this process, it's recommended to consult a professional or take a training course.