PP sheet Overview
PP sheet, also called polypropylene sheet,is a flat or corrugated sheet made from polypropylene, a thermoplastic polymer known for its excellent chemical and moisture resistance.industrial fabrication, electronics, construction, and signage industries. Known for its chemical resistance, durability, and lightweight properties.
Structural Varieties
- Solid PP Board: A solid, dense sheet used for machining and structural parts.
- PP Corrugated Sheet / Fluted PP Sheet: Also known as pp hollow sheet or corrugated pp sheet, this features two flat skins separated by vertical ribs. It is incredibly lightweight and used extensively in signage and reusable packaging.

Material Performance and Grades
Choosing the right Polypropylene Board requires understanding the different chemical grades available:
- PPC Sheet (Polypropylene Copolymer): This grade is slightly softer but has much better impact strength, especially in cold environments. It is often the choice for industrial containers.
- PPH (Homopolymer): Offering a higher strength-to-weight ratio and stiffness, this is the standard for PP Plate used in chemical engineering.
- Flame Retardant & Anti-Static: Specialized grades are used in electronics to protect against fire and ESD (Electrostatic Discharge).
- PPF Sheet Price Considerations: While the ppf sheet price (Paint Protection Film or specialized flexible films) varies by thickness and UV coating, standard industrial pp sheet price remains one of the most competitive in the polymer market.
Surface Treatment and Appearance
The visual and tactile properties of polypropylene sheet can be customized during the extrusion process:
- Transparency: Options range from a transparent pp sheet (ideal for visibility) to a clear pp sheet or pp clear sheet. Note that PP is naturally translucent; for glass-like clarity, specific “clarified” grades are used.
- Color Variations: The white pp sheet and black pp sheet are industry standards for cleanliness and UV resistance, respectively. Transparent / Colored PP Sheet options are widely used in the stationery and consumer goods sectors.
- Texture: Surfaces can be smooth, matte (frosted), or embossed (orange peel) to enhance grip or hide scratches.

Diverse Applications
The versatility of the Polypropylene Sheet allows it to cross multiple industries:
- Chemical Industry: Due to its acid and alkali resistance, PP Board is used to fabricate chemical tanks, laboratory equipment, and scrubbers.
- Packaging and Stationery: Thinner sheets are used as a pp sheet protector, folder covers, or heavy-duty box dividers.
- Electronics: 1mm polypropylene sheet components serve as insulators and spacers within hardware housings.
- Construction & Signage: Corrugated polypropylene sheet is the go-to material for temporary floor protection and outdoor “For Sale” signs.
- Automotive: Used in interior trims and battery cases due to its heat resistance.
Advantages of PP Sheets
| Feature | PP Sheet (Polypropylene) | Key Industrial Advantage |
| Density | ~0.91 g/cm³ (Lightest plastic) | Reduces shipping costs and allows for easier manual handling and installation. |
| Chemical Resistance | Excellent | Highly resistant to acids, alkalis, and organic solvents; ideal for chemical tanks. |
| Heat Resistance | High (Up to 110℃) | Maintains structural integrity in high-temperature environments or steam cleaning. |
| Fatigue Resistance | “Living Hinge” Property | Can be folded thousands of times without cracking; perfect for folders and boxes. |
| Moisture Absorption | Near Zero (< 0.01%) | Dimensional stability remains perfect even in high-humidity or underwater use. |
| Electrical Insulation | Excellent Dielectric | Safe for use as spacers and insulators in PCB and electronic assemblies. |
| Environmental Impact | 100% Recyclable | A more eco-friendly choice compared to PVC; produces no toxic fumes when burned. |
| Food Safety | FDA Compliant | Non-toxic and odorless; the standard choice for food processing and medical use. |
PP vs. Other Common Plastics
| Property | PP Sheet | PVC Sheet | HDPE (PE) Sheet |
| Weight | Lightest | Heavy | Light |
| Rigidity | High | Very High | Moderate/Flexible |
| Impact Strength | Good (Copolymer) | Moderate | Excellent |
| Max Temp | 100-110℃ | 60℃ | 80℃ |
| Welding/Bonding | Excellent (Heat Weld) | Excellent (Solvent) | Good (Heat Weld) |
Conclusion
Whether you are comparing the pp sheet price for a large-scale construction project or sourcing a specialized black polypropylene sheet for an industrial lining, the polypropylene plastic sheet remains a top-tier choice for its durability and recyclability.
