Engineering Plastics High-quality plastics for industry

What are Engineering Plastics?

Engineering plastic materials are essential pre-processed components for many industries. They take the form of versatile rods, sheets, tubes or profiles. Made of polymerised materials such as PTFE, PA6, PE HDPE and PVC, they offer practical solutions.

These materials, available in a wide range of diameters, formats and thicknesses, reduce the need for complex machining from scratch. Larosi Srl offers these products to turn ideas into concrete realities. Their intermediate nature makes them perfect for customised machining. Imagine a resistant material that adapts to every production requirement. This is the heart of plastic semi-finished products, indispensable in many sectors.

Key Properties of Engineering Plastics

These materials adapt to precise cutting and shaping. Available in various forms, they are easily integrated into existing processes. In fact, ‘semi-finished products’ get this name because they are supplied in physical formats that are already pre-processed and pre-formed, ready for further machining or used directly in various applications.

The formats available in our extensive range include, for example:

• Round: cylindrical profile bars, ideal for turning and milling.
• Sheets: available in various formats and precisely calibrated thicknesses, perfect for cutting and shaping.
• Sheets: thicknesses of less than 1 mm, flexible and suitable for light machining or coating.
• Rolls: supplied for applications requiring continuity or flexibility of use.
• Perforated tubes: round bars with a central hole, useful for hydraulic or structural components.
• Hexagonal or square profile bars: designed for specific machining operations or as bases for mechanical elements.
• Cut strips: ready-made sections for specific uses or quick assembly.

These formats, thanks to their versatility and standardisation of dimensions, simplify production processes, reducing preparation times and providing a reliable basis for finished components in various industrial sectors.

Engineering plastics offer practical solutions for detail-oriented engineers

Technoplastics ensure high performance in difficult environments. The characteristics of engineering plastics make them unique for material-specific technical applications.

For example, PTFE (polytetrafluoroethylene) is characterised by its extraordinary resistance to high temperatures of up to 260°C and its self-lubricating properties, which drastically reduce surface friction. This makes it ideal for applications where exceptional smoothness is required, such as seals or non-stick coatings.

PVC (polyvinyl chloride), on the other hand, excels in resistance to aggressive chemicals, such as acids, bases and salts, while maintaining its structural integrity even in corrosive environments, making it widely used in piping and chemical-industrial components.

PA6 (polyamide 6), on the other hand, offers high mechanical strength and remarkable fatigue resilience, making it perfect for the production of components under continuous stress, such as gears or structural supports.

Finally, HDPE (high density polyethylene) is characterised by its low friction coefficient and excellent durability, especially in dynamic applications. Also available in a ‘food grade’ version that complies with food contact regulations, it is a preferred choice for containers, work surfaces or piping in the food industry.

These materials, with their special features, specifically meet the needs of different sectors, guaranteeing reliable performance and tailor-made solutions.

Choosing these components is synonymous with efficiency and flexibility. They meet the challenges of those who seek excellence without compromise. Relying on them means choosing quality and innovation.

Applications in Various Industry Sectors

Solutions for Every Sector

Engineering Plastic Materials are suitable for sectors such as automotive, food or industrial production. We offer different formats, such as bars or sheets, for specific requirements. This makes them perfect for applications requiring precision or strength.

At Larosi.eu you will find options that meet every technical requirement. Their adaptability helps you reach new customers with ease. Offering versatile materials strengthens your market position. It is an easy way to grow in your field and meet your customers’ needs.

The main technoplastic semi-finished products in our range include:

• PA6, PA6Y, PA6.6, PA11, PA12
• POM
• PP
• PE (HDPE, LDPE)
• PVC
• PTFE
• PC
• PMMA
• PUR UT

Each material is distinguished by specific properties – physical, thermal, mechanical, chemical and electrical – that make it ideal for different and targeted applications.

Backed by more than half a century of experience, we provide industry professionals with qualified support in selecting the most suitable material and technoplastic semi-finished product for their needs. Thanks to collected data, laboratory tests and field trials, we are able to offer precise and reliable indications to guide you in your initial selection.

PA6, PA6Y, PA6.6, PA11, PA12 (Polyamides)

• Physical: Good wear and abrasion resistance, high toughness.
• Thermal: Resistant to moderate temperatures (PA6 and PA6.6 up to approximately 100-120°C, PA11 and PA12 slightly lower).
• Mechanical: Excellent resilience and fatigue strength, ideal for components subjected to mechanical stress.
• Chemical: Fair resistance to oils, greases and solvents, but sensitive to moisture (they absorb water).
• Electrical: Good insulators, although properties may vary with moisture absorption.

POM (Polyoxymethylene)

• Physical: High stiffness and dimensional stability.
• Thermal: Withstands up to approx. 100°C continuously.
• Mechanical: Excellent creep and wear resistance, ideal for gears and precision parts.
• Chemical: Excellent resistance to organic solvents, but sensitive to strong acids and UV rays.
• Electrical: Good electrical insulator.

PP (Polypropylene)

• Physical: Lightweight, with good flexibility.
• Thermal: Resistant up to about 100°C, but deforms at high temperatures.
• Mechanical: Moderate strength, suitable for light loads.
• Chemical: Excellent resistance to many chemicals (acids, bases, solvents), but sensitive to oxidation.
• Electrical: Excellent insulation, even in humid environments.

PE (HDPE, LDPE – Polyethylene)

• Physical: HDPE is rigid and resistant, LDPE is softer and more flexible.
• Thermal: Limited heat resistance (HDPE up to 80-100°C, LDPE less).
• Mechanical: Good impact resilience, especially for HDPE.
• Chemical: High resistance to chemicals and corrosion, ideal for containers.
• Electrical: Excellent insulation, widely used in electrical applications.

PVC (Polyvinyl chloride)

• Physical: Available in rigid or plasticised versions, versatile.
• Thermal: Resistant up to approximately 60-80°C (rigid version).
• Mechanical: Good impact resistance in the plasticised version.
• Chemical: Resistant to acids, bases and salts, but less so to organic solvents.
• Electrical: Excellent insulator, used in cables and coatings.

PTFE (Polytetrafluoroethylene)

• Physical: Non-stick surface, low density.
• Thermal: Exceptional heat resistance (up to 260°C).
• Mechanical: Low mechanical strength, but excellent wear resilience.
• Chemical: Almost inert, resistant to almost all chemicals.
• Electrical: Very high level of electrical insulation, stable even at high frequencies.

PC (Polycarbonate)

• Physical: Transparent, high impact resistance.
• Thermal: Resistant up to approx. 120-130°C.
• Mechanical: Very robust, ideal for structural applications.
• Chemical: Fair resistance to oils and greases, but sensitive to aggressive solvents.
• Electrical: Good insulator, stable in many conditions.

PMMA (polymethyl methacrylate)

• Physical: Transparent (similar to glass), rigid.
• Thermal: Limited resistance to heat (approx. 80-90°C).
• Mechanical: Fragile compared to PC, but good scratch resistance.
• Chemical: Resistant to some chemicals, but can be attacked by organic solvents.
• Electrical: Discreet electrical insulator.

PUR UT (Polyurethane)

• Physical: Flexible or rigid depending on formulation.
• Thermal: Variable resistance (generally up to 80-100°C).
• Mechanical: High elasticity and resistance to abrasion.
• Chemical: Good resistance to oils and greases, less to strong solvents.
• Electrical: Moderate insulating, depending on formulation.

To make it even easier for you, we provide a downloadable comparison table detailing the values of the main characteristics of each material, enabling a quick and effective comparison.

Why Choose Larosi Engineering Plastic Products for Your Projects?

Since 1970, Larosi Srl in Padua has been synonymous with experience in the industrial sector. We are a leading wholesaler of more than 1,000,000 industrial products in stock. Our range includes over 10,000 different types of components. With such a wide range of engineering plastic materials, we cover every conceivable need.

Our plastic products meet high and stringent quality standards developed and refined over more than 50 years of experience in the industry. Their consistent quality ensures reliable results in finished products. Thanks to our half century in the business, we understand our customers’ needs. We offer materials such as PTFE and PA6 with unique expertise. We are the benchmark for those looking for reliability.

Rapid Delivery and Excellent Service with Larosi Srl

Larosi Srl is distinguished by its fast delivery of orders everywhere. Semi-finished plastic products arrive quickly, reducing waiting times and production stoppages. Our extensive warehouse guarantees immediate availability of various engineering plastics. Whether PE, HDPE or PVC, we have it all ready for you. This efficiency is our customers’ most appreciated competitive advantage.

Visit Larosi.eu or Larosi.it to discover our entire range and services.

Rely on us for fast and quality solutions.