PP (Polypropylene) vs PP-H (Polypropylene Homopolymer): 44% composition overlap. Significantly different materials serving different application areas.
PP (Polypropylene) vs PP-H (Polypropylene Homopolymer)
Side-by-side chemical composition and mechanical property comparison.
Overview
PP (Polypropylene)
Polypropylene is the most produced plastic globally by volume. Semi-crystalline thermoplastic with excellent chemical resistance, low density (0.90–0.91 g/cm³ — lightest engineering plastic, floats in water), good fatigue resistance (living hinges) and low cost. Available as homopolymer (higher stiffness) and copolymer (better impact). Trade names: Moplen (LyondellBasell), Sabic PP (SABIC), Borealis PP. Used for packaging, automotive bumpers/interiors, medical devices, piping, hinges, containers, textiles (nonwoven) and household goods.
PP-H (Polypropylene Homopolymer)
Polypropylene Homopolymer — the lightest common engineering plastic (0.905 g/cm³). Excellent chemical resistance (esp. to acids and bases), good fatigue resistance (integral living hinges), and low moisture absorption. Becomes brittle below 0°C. Used for chemical tanks, HVAC ducts, pump housings, food containers, automotive battery cases, and medical lab equipment.
| PP (Polypropylene) | PP-H (Polypropylene Homopolymer) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 1873 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PP (Polypropylene) | PP-H (Polypropylene Homopolymer) | Overlap |
|---|---|---|---|
| Base Polymer (Polypropylene) | 99–99.9% | 99.5–99.9% | OK |
Mechanical properties — Pro
| Property | PP (Polypropylene) | PP-H (Polypropylene Homopolymer) | Unit |
|---|---|---|---|
| Tensile Strength | 31–37 | — | MPa |
| Tensile Modulus | 1300–1800 | — | MPa |
| Elongation at Break | 100–600 | — | % |
| Charpy Impact (notched, 23°C) | |||
| Charpy Impact (notched, -20°C) | |||
| Density | |||
| Melting Point | |||
| HDT/A (1.8 MPa) | |||
| Water Absorption (24h) | |||
| Tensile Strength | |||
| Yield Strength | |||
| Elongation | |||
| Elastic Modulus | |||
| Density | |||
| Melting Point | |||
| hardness_shore_d | |||
| Water Absorption (24h) |
Sign up free and get 3 full comparisons immediately.
Sign up free — 3 comparisons/day freeCompatibility Assessment
PP (Polypropylene) and PP-H (Polypropylene Homopolymer) have significantly different compositions (44% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PP (Polypropylene) the same as PP-H (Polypropylene Homopolymer)?
PP (Polypropylene) and PP-H (Polypropylene Homopolymer) have a 44% composition overlap. They are generally not directly interchangeable.
Can I replace PP (Polypropylene) with PP-H (Polypropylene Homopolymer)?
Generally not recommended. The compositions differ significantly (44% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PP (Polypropylene) and PP-H (Polypropylene Homopolymer)?
The main differences are in the following elements: overall alloying content. PP (Polypropylene) is a Polymers grade, while PP-H (Polypropylene Homopolymer) is a Polymers grade.
Related Comparisons
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.