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PP（Polypropylene） Machining
Polypropylene (PP) Sheets, Rods & Custom Machining Services
Premium PP plastic materials and precision fabrication for chemical tanks, industrial components, and custom parts. No minimum order • ±0.03mm CNC accuracy • Global delivery
NO MOQ
Order Any Quantity
From 1 Piece to 10,000+
From 1 Piece to 10,000+
±0.03mm
CNC Precision
Tight Tolerance Control
Tight Tolerance Control
3-7 Days
Fast Production
Quick Turnaround
Quick Turnaround
FREE*
Standard Shipping
To Many Countries
To Many Countries
Why Choose Polypropylene (PP) Plastic?
1
Superior Chemical Resistance Excellent resistance to acids, alkalis, and organic solvents. Ideal for chemical tanks, laboratory equipment, and processing vessels.
2
Lightweight & Strong Low density (0.91 g/cm³) with high strength-to-weight ratio. Perfect for weight-sensitive applications.
3
Excellent Machinability Easy to machine, weld, and thermoform. Produces smooth finishes and holds tight tolerances.
4
Cost-Effective Solution Lower cost than engineering plastics like PEEK or POM while maintaining excellent performance.
PP Material Types Available
Homopolymer PP
- Higher stiffness & strength
- Better heat resistance
- Ideal for structural parts
- Chemical processing tanks
Copolymer PP
- Better impact resistance
- More flexibility
- Low temperature toughness
- Living hinges & clips
PP Products & Stock Sizes
PP Sheets & Plates
| Size: | 1500×3000mm (59"×118") |
| Thickness: | 1mm - 100mm |
| Colors: | Natural, White, Gray, Black |
| Custom Cut: | Any size available |
PP Rods & Bars
| Diameter: | 8mm - 500mm |
| Length: | Up to 1000mm |
| Shapes: | Round, Square, Hexagon |
| Processing: | CNC turning ready |
Welded PP Tanks
| Types: | Chemical, Water, Process |
| Capacity: | 5L to 10,000L+ |
| Features: | Baffles, Outlets, Covers |
| Welding: | Hot air & extrusion |
Polypropylene Technical Properties & Specifications
Physical Properties
| Density | 0.91 g/cm³ |
| Water Absorption | <0.01% |
| Hardness (Shore D) | 70-78 |
| Melting Point | 165°C |
Mechanical Properties
| Tensile Strength | 33-36 MPa |
| Flexural Strength | 40-45 MPa |
| Tensile Modulus | 1400-1800 MPa |
| Impact Strength | 4-6 kJ/m² |
Thermal Properties
| Operating Temp | -20°C to +90°C |
| HDT @ 0.45 MPa | 90-100°C |
| Thermal Expansion | 150 μm/m·K |
| Thermal Conductivity | 0.22 W/m·K |
Custom PP Plastic Fabrication & Machining Services
Industry Applications for PP Plastic Materials
🧪
Chemical Processing
Storage tanks, reaction vessels, piping systems, fume hoods
💧
Water Treatment
Water tanks, filtration systems, treatment vessels, pipe fittings
🏭
Food Processing
Cutting boards, containers, conveyor parts, processing equipment
⚕️
Medical & Lab
Sterilization trays, lab equipment, diagnostic device housings
Common PP Plastic Components We Manufacture
- Acid storage tanks
- Chemical reaction vessels
- Laboratory fume hoods
- Plating tanks & liners
- Ventilation ducting
- Water storage tanks
- Pump components & impellers
- Valve bodies & seats
- Pipe fittings & flanges
- Filter housings
- Orthotic & prosthetic parts
- Battery cases & trays
- Electronic enclosures
- Machine guards & shields
- Custom brackets & fixtures
PP Chemical Resistance Guide
Polypropylene offers excellent resistance to a wide range of chemicals. Below is a guide for common chemical exposures at room temperature.
✓ Excellent Resistance
- Acids (dilute & concentrated)
- Alkalis & bases
- Salt solutions
- Alcohols
- Aqueous solutions
⚠ Good Resistance
- Oils & greases
- Aliphatic hydrocarbons
- Some ketones
- Weak oxidizing agents
✗ Limited Resistance
- Strong oxidizing acids
- Aromatic hydrocarbons
- Chlorinated solvents
- High temp exposure
⚡ Quick Test
Need specific chemical compatibility? Contact our technical team for detailed resistance data and testing recommendations.
Real Customer Success with PP Solutions
Chemical Plant Tank Replacement
A chemical processing facility replaced 20 stainless steel tanks with our custom PP welded tanks. The polypropylene tanks provided superior chemical resistance to their specific acid mixtures while reducing costs by 65%.
65%
Cost Savings
3 Years
Zero Leaks
20 Tanks
Delivered
Medical Device Component Production
A medical equipment manufacturer needed precision PP components with ±0.03mm tolerances. Our CNC machining delivered 5,000+ parts with 100% quality acceptance, enabling their product launch on schedule.
5,000+
Parts Made
100%
Quality Pass
5 Days
Turnaround
Frequently Asked Questions About PP Materials & Services
What's the difference between PP and HDPE?
PP offers better chemical resistance and higher temperature performance (90°C vs 80°C), while HDPE provides superior impact resistance at low temperatures. PP is stiffer and stronger, making it ideal for structural applications and chemical tanks.
Can you machine PP to tight tolerances?
Yes! Our CNC machining centers achieve standard tolerances of ±0.03mm (±0.0012") for PP parts. With proper fixturing and tooling, we can hold even tighter tolerances on critical features when required.
Do you have minimum order requirements?
No minimum order quantity! We accept orders from single prototypes to thousands of production parts. This flexibility allows you to test designs and scale production as needed without large upfront commitments.
How large can you make PP welded tanks?
We fabricate PP tanks from small 5-liter laboratory vessels up to industrial tanks exceeding 10,000 liters. Using hot air and extrusion welding techniques, we create leak-proof joints suitable for chemical storage and processing.
Is PP suitable for outdoor applications?
Natural PP has limited UV resistance and may degrade with prolonged sun exposure. For outdoor applications, we recommend black PP with UV stabilizers or applying protective coatings to extend service life.
What's your typical lead time?
Standard lead time is 3-7 business days for most custom PP parts. Simple cutting services can be completed in 1-2 days, while complex welded tanks may require 10-15 days depending on size and specifications.
PP Material Selection & Design Guide
When to Choose Homopolymer PP
- Higher stiffness required
- Better chemical resistance needed
- Higher temperature applications
- Structural components
- Chemical processing equipment
When to Choose Copolymer PP
- Impact resistance critical
- Low temperature flexibility
- Living hinges needed
- Repeated stress cycling
- Outdoor applications
Design Considerations
- Wall thickness: 3-25mm typical
- Draft angles: 1-2° minimum
- Radius: 0.5× wall thickness min
- Thread pitch: 1mm minimum
- Hole spacing: 2× diameter
Simple Ordering Process for PP Materials & Custom Parts
1
Submit Request
Send drawings, specifications, or describe your PP plastic needs
2
Quick Quote
Receive detailed pricing within 24 hours or less
3
Production
Your PP parts manufactured with precision and quality control
4
Fast Delivery
Global shipping with tracking to your location
Our PP Plastic Fabrication Capabilities
Precision Machined PP Parts
From simple brackets to complex assemblies, our CNC machining delivers consistent quality and precision for all your polypropylene component needs.
Custom Welded PP Tanks & Vessels
Expert fabrication of PP tanks for chemical storage, water treatment, and process vessels with leak-proof welded joints and custom configurations.
Start Your PP Plastic Project Today
From raw PP materials to complex custom parts, BeePlastic delivers quality, precision, and reliability. No minimum orders, expert technical support, and fast global delivery.
Contact Our PP Plastic Experts
Email: beeplastic@beeplastic.com
Address: Building 3, Dezheng Middle Road, Chang'an Town, Dongguan City, Guangdong Province, China
*Free standard shipping available to select countries and regions. Express delivery available at customer expense. Contact us for specific shipping details to your location.
Learn More
Fully Customizable to Your Specifications
At BeePlastic, we offer precision cutting and machining to produce sheets and rods that perfectly fit your project's specific dimensions and requirements.
Tailored Solutions Across Industries
Explore Our Full Range of Plastic Materials
Discover the versatility and quality of our extensive plastic materials portfolio. From standard sheets to highly specialized rods, each product is designed to meet the diverse needs of industries including aerospace, automotive, and healthcare. Browse our collection to find the perfect material suited to your project requirements.
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