Material Types & Specification System

Type	Thickness Range (mm)	Width Range (mm)	Length Range (mm)	Surface Finish	Key Characteristics
Standard PP Sheet	2-50	1000-2000	2000-4000	Glossy/Matte	General purpose, cost-effective
PPH Sheet (Homopolymer)	5-100	1500-2500	3000-6000	Glossy	High rigidity, good temperature resistance
PPB Sheet (Block Copolymer)	PPB Sheet (Block Copolymer)	PPB Sheet (Block Copolymer)	2000-4000	Glossy	High toughness, good low-temperature impact resistance
PPR Sheet (Random Copolymer)	2-20	1000-2000	2000-4000	Glossy	Transparent/Semi-transparent, high impact
Glass Fiber Reinforced PP Sheet	3-30	1000-2000	2000-4000	Glossy/Textured	High strength, low thermal expansion
Flame Retardant PP Sheet	2-20	1000-2000	2000-4000	Glossy	UL94 V-0/V-2 rated
Anti-Static PP Sheet	3-30	1000-2000	2000-4000	Glossy	Surface resistivity 10⁶-10⁹ Ω

Technical Parameters & Performance Indicators

Physical & Mechanical Properties

Performance Indicator	Standard PP Sheet	PPH Sheet	PPB Sheet	PPB Sheet
Density (g/cm³)	0.90-0.91	0.90-0.91	0.90-0.91	ISO 1183
Tensile Strength (MPa)	25-30	30-35	25-28	ISO 527
Elongation at Break (%)	>100	>100	>200	ISO 527
Flexural Strength (MPa)	40-45	45-50	45-50	ISO 178
Flexural Modulus (MPa)	1200-1400	1300-1500	1000-1200	1000-1200 |
Notched Impact Strength (kJ/m²)	3-5	3-4	8-12	ISO 180/ISO 179
Rockwell Hardness (R Scale)	85-95	95-105	80-90	ISO 2039-2

Thermal & Electrical Properties

Performance Indicator	Standard PP Sheet	PPH Sheet	PPB Sheet	Test Standard
Heat Deflection Temp. (0.45MPa, °C)	100-105	105-110	95-100	ISO 75-2
Vicat Softening Point (°C)	150-155	155-160	155-160	ISO 306
Continuous Service Temperature (°C)	80-100	90-110	80-95	—
Coefficient of Linear Thermal Expansion (10⁻⁵/K)	11-13	10-12	12-14	ISO 11359-2
Volume Resistivity (Ω·cm)	>10¹⁶	>10¹⁶	>10¹⁶	IEC 60093
Dielectric Strength (kV/mm)	25-30	25-30	25-30	IEC 60243-1

Typical Application Fields

Application Field	Specific Uses	Specific Uses	Specific Uses
Chemical Corrosion Protection	Electrolysis tank liners, reactor lining plates, acid mist scrubbers	PPH Sheet, 8-20mm	Resistance to specific media, weld strength, resistance to thermal deformation
Environmental & Water Treatment	Wastewater treatment tanks, scraper blades for settling tanks, biogas tank seals	PP Sheet, 10-30mm	Weather resistance, impact resistance, microbial resistance
Food & Pharmaceutical	Work surfaces, containers, conveyor side guides, cleanroom wall panels	Food-Grade PP Sheet, 5-15mm	FDA compliance, easy to clean, contamination-free
Electronics & Electrical	Plating tanks, pickling lines, insulating boards, test benches	Plating tanks, pickling lines, insulating boards, test benches	Insulation/Anti-static, flame retardancy, dimensional stability
Advertising & Printing	Screen printing base plates, UV printing substrates, display backboards	Glossy PP Sheet, 3-10mm	Flat surface, good adhesion, warpage-free
Automotive Manufacturing	Battery trays, interior part molds, pickling fixtures	Glass Fiber Reinforced PP Sheet, 5-15mm	High strength & rigidity, dimensional stability, chemical resistance
Laboratories	Fume hood liners, reagent racks, corrosion-resistant workbenches	Chemically Pure PP Sheet, 8-15mm	Solvent resistance, easy machining, no leaching

Chemical Resistance Reference Table

Chemical Medium	Concentration	Resistance Rating (23°C)	Suggested Max. Temp.	Notes
Sulfuric Acid	≤70%	Excellent	60°C	Not resistant to >90% concentration
Hydrochloric Acid	All Concentrations	Excellent	80°C	Long-term use recommended <40°C
Sodium Hydroxide	≤50%	Excellent	100°C	Slight swelling possible with concentrated alkali at high temp.
Ammonia Solution	≤30%	Excellent	60°C	—
Ethanol	Pure	Excellent	60°C	—
Acetone	Pure	Good	40°C	May cause slight swelling; avoid prolonged immersion
Sodium Hypochlorite	Sodium Hypochlorite	Good	40°C	Avoid combined UV exposure
Nitric Acid	≤30%	Fair	23°C	Not resistant to >30% or at elevated temperatures

Machining & Installation Guide

1. Cutting & Machining

   Mechanical Cutting: Circular saws, band saws, jigsaws are all suitable; blades with more teeth are recommended.

   Parameter Suggestions: Cutting speed 20-40 m/min, moderate feed rate to avoid overheating.

   Laser Cutting: CO₂ lasers can be used but may create a melted edge; parameters need optimization.

2. Welding Processes

Welding Method	Suitable Sheet ThicknessKey Process Points	Key Process Points	Strength Factor
Hot Gas Welding	2-15mm	Welding rod same material as base; Temp: 250-280°C	0.6-0.8
Hot Plate Welding	5-40mm	Heating plate temp: 220-240°C; Pressure: 0.15-0.3 MPa	0.8-0.9
Extrusion Welding	8-60mm	Fast, suitable for large welds on thick sheet	0.7-0.8

Strength factor relative to parent material strength.

3. Mechanical Joining

   Bolting: Pre-drill hole 1-2mm larger than bolt diameter; use washers to distribute stress.

   Bonding: Surface requires flame or corona treatment; use PP-specific adhesives.

   Insert Molding: Metal threaded inserts can be embedded to improve connection strength.

Selection Decision Matrix

Application Scenario	Primary Performance Requirement	Recommended Sheet Type	Thickness Suggestion	Machining Key Points
Strong Acid Environment Tanks	Corrosion Resistance, Weldability	PPH Sheet	10-20mm	Double-sided welding, rounded corners
Food Processing Surfaces	Hygiene & Safety, Easy Cleaning	Food-Grade PP Sheet	8-15mm	Rounded edges, seamless joints
Electroplating Production Lines	Temperature Resistance, Dimensional Stability	Glass Fiber Reinforced PP Sheet	12-25mm	Stiffener design to prevent warpage
Outdoor Weather-Resistant Structures	UV & Impact Resistance	Copolymer PP + Anti-aging Additives	8-15mm	Avoid direct sunlight, use light colors
Anti-Static Work Areas	Surface Resistivity Control	Anti-Static PP Sheet	5-10mm	Grounding, regular testing
Temporary Corrosion Linings	Cost-Effectiveness, Easy Installation	Standard PP Sheet	5-8mm	Mechanical fastening, sealed joints

Industry Custom Solutions

1.  Semiconductor Industry

       Requirements: Ultra-high purity, low extractables, resistance to mixed acids.

       Solution: Dedicated clean-grade PP sheets, metal ion content <1 ppb.

       Application: Wet process tanks, wafer storage/carrier boxes, piping systems.

2.  Lithium Battery Manufacturing

       Requirements: Electrolyte resistance, flame retardancy, dimensional stability.

       Solution: Flame retardant V0-grade PP sheet, resistant to LiPF₆ electrolyte.

       Application: Filling fixtures, formation trays, testing jigs.

3.  Seawater Desalination

       Requirements: Seawater corrosion resistance, anti-fouling, long service life.

       Solution: Anti-aging PP sheet with anti-fouling additives.

       Application: Pre-treatment tanks, membrane housing supports, pipe linings.

4.  Photovoltaic Industry

       Requirements: Acid/alkali resistance, insulation, weather resistance.

       Solution: Reinforced PP sheet with UV-resistant surface treatment.

       Application: Wet etching tanks, cleaning equipment, insulating components for mounting structures.

Storage & Maintenance

   Storage Conditions:

       Environment: Store indoors, avoid direct sunlight.

       Temperature: -10°C to 40°C.

       Stacking: Lay flat on level ground; stack height not exceeding 1.5m.

       Shelf Life: Best used within 12 months of production.

   Maintenance & Care:

       Cleaning: Wipe with neutral detergent; avoid strong solvents.

       Inspection: Regularly check surface condition and connection points.

       Repair: Minor damage can be welded; large areas may require replacement.

       Protection: Avoid impact from sharp objects; add supports in high-temperature areas.

Development Trends

   Technological Directions:

    1.  High-Performance: Development of ultra-high molecular weight PP sheets with 3-5x improved impact strength.

    2.  Functional Integration: Multi-functional composite sheets with conductivity/thermal conductivity/antibacterial properties.

    3.  Green Manufacturing: Bio-based PP sheets, reducing carbon footprint by over 30%.

    4.  Intelligent Manufacturing: Online quality monitoring, controlling thickness tolerance within ±0.1mm.

   Market & Application Expansion:

    1.  New Energy Vehicles: Battery pack housings, charging pile insulating components.

    2.  Marine Engineering: Deep-sea aquaculture cages, seawater pump liners.

    3.  Medical Equipment: Sterilizable medical instrument trays, diagnostic equipment parts.

    4.  5G Communication: Antenna radomes, base station insulating components.

Conclusion

As one of the most important thermoplastic sheets, PP Sheet plays an indispensable role in critical fields such as industrial corrosion protection, environmental water treatment, food & pharmaceutical, and electronics & electrical, thanks to its outstanding chemical corrosion resistance, good mechanical properties, excellent hygiene & safety, and remarkable cost-effectiveness. With advancements in material modification technology and evolving application demands, PP Sheet is rapidly developing towards higher performance, greater functionality, and enhanced environmental sustainability. Correct selection, standardized machining, and proper maintenance are key to ensuring the long-term, reliable service of PP Sheet. In the future, PP Sheet will continue to expand its applications in high-end manufacturing and emerging industries.