HPL (high pressure laminate) and CPL (continuous pressure laminate) differ primarily in terms of manufacturing process, structure and technical properties. HPL is manufactured under higher pressure (>5 MPa) and is typically thicker (0.6-2 mm), more durable and suitable for demanding applications. CPL is manufactured at lower pressures (2-5 MPa), is thinner (0.2-0.9 mm) and suitable for lighter applications. The choice between the two depends on the requirements of the application, the degree of wear and budget constraints.
What is the difference between HPL and CPL laminates?
HPL and CPL laminates are both popular surface materials, but there are significant differences between them that affect their use and suitability for different applications.
HPL i.e. high pressure laminate (High Pressure Laminate) is made by pressing several paper-based layers together under high pressure and temperature. It is a thicker, stiffer and more durable surface material, particularly suitable for demanding applications.
CPL i.e. continuous laminate (Continuous Pressure Laminate) is manufactured in a continuous production process at a lower pressure. It is a thinner and more flexible material, suitable for lighter applications.
Understanding the differences between these types of laminates is essential for designers and manufacturers to select the right material for projects that meet technical and aesthetic requirements.
How do the manufacturing processes for HPL and CPL laminates differ?
The manufacturing processes for HPL and CPL laminates differ in terms of the pressure, temperature and production method used, which has a significant impact on the properties of the final product.
HPL laminate is manufactured as a multilayer structure, where several layers of resin-impregnated paper are pressed together. in plate presses at a pressure of at least 5 MPa and a temperature of about 150 °C. The production process is intermittent, where laminate sheets are produced in one batch at a time. This allows for a very tightly controlled manufacturing process and the creation of different surface patterns and textures.
CPL laminate, on the other hand, is manufactured from in a continuous clamp, where the paper rolls pass through at a lower pressure of around 2-5 MPa. In this process, the laminate is formed as a continuous strip, which is later cut into sheets of the desired size. The lower pressure and continuous process make manufacturing faster and more cost-effective, but limit the thickness of the material and some technical properties.
Differences in manufacturing processes directly affect the durability, appearance and suitability of laminates for different applications.
What are the technical characteristics of HPL and CPL laminates?
There are significant differences in the technical properties between HPL and CPL laminates, which determine their suitability for different applications.
| Feature | HPL laminate | CPL laminate |
|---|---|---|
| Thickness | 0,6-2,0 mm | 0,2-0,9 mm |
| Wear resistance | Very high | Moderate |
| Impact resistance | Excellent | Good for |
| Moisture resistance | Excellent | Good for |
| Heat resistance | High (≥ 180°C) | Moderate (≥ 120°C) |
| FLEXIBILITY | Limited, rigid | Better, more flexible |
HPL laminate offers superior durability for demanding applications. It has excellent resistance to wear, impact, moisture and heat, but its thicker structure makes it stiffer and more difficult to bend.
CPL laminate has the advantage of being flexible and bendable, making it suitable for curved surfaces and furniture doors. Although it does not have the durability characteristics of HPL, it is still a durable material for many applications.
Both types of laminate have good chemical resistance and are effective against most household chemicals, but HPL generally offers better protection against aggressive chemicals.
What are the best applications for HPL and CPL laminates?
HPL and CPL laminates are suitable for different applications due to their technical properties. The choice of the right material has a significant impact on the quality and durability of the final result.
HPL laminate is the most suitable:
- For public spaces such as schools, hospitals and restaurants, where excellent wear resistance is required
- For worktops and table tops subject to heavy wear and tear
- For laboratory and hospital equipment where good chemical resistance is required
- For facades and exterior cladding with HPL grades designed for special applications
- For bathroom and sanitary furniture where moisture resistance is important
CPL laminate is the most suitable:
- For furniture doors and frames where flexibility is an advantage
- For interior panels that are not subject to heavy wear and tear
- For curved surfaces thanks to its better bendability
- For vertical surfaces such as the inside of cabinets
- For private premises and light use
KERROCK composite panels complement the laminate range in applications where a seamless, hygienic and formable surface is required. They are particularly suitable for kitchen worktops, bathroom furniture and sinks.
How to choose the right type of laminate for your project?
Choosing the right type of laminate depends on a number of factors, which should be carefully considered during the design phase. This will ensure that the end result meets both technical and aesthetic requirements.
First assess the application Rate of consumption. If the destination is a public space or other area of heavy use, HPL laminate is usually a better choice. For private homes and less stressed areas, CPL may be an adequate and more cost-effective option.
Also consider the surface shape requirements. If you are designing curved shapes or small details, the greater flexibility of CPL laminate can be a decisive factor. If the site has sharp corners or special shapes, KERROCK composite sheet may be the best solution due to its seamless machinability.
Naturally, the budget will influence the choice. HPL laminates are typically more expensive than CPL laminates, but for longer-lasting and more demanding projects, the investment in a more durable material will pay off.
Also consider the installation method. If the installation requires on-site bending or retrofitting, CPL may be a more practical option due to its better machinability.
From an aesthetic point of view, both types of laminate offer a wide range of colours, patterns and surface textures, so the choice is based more on technical requirements than on aesthetic constraints.
Summary of laminate types - HPL or CPL?
HPL and CPL are both excellent surface materials, but they have their own strengths for different applications. The choice between them depends on the requirements and conditions of the project.
HPL laminate is a master of endurance, which provides excellent protection against abrasion, shocks, moisture and heat. It is an ideal choice for public spaces, hard-wearing surfaces and areas where long-term durability is required.
CPL laminate, on the other hand, offers a good balance between durability, flexibility and cost-effectiveness. It is well suited to lighter applications, curved surfaces and situations where easier machinability is required.
At Lorella, we offer a wide range of high-quality laminates to suit different needs. We can help you choose the right surface material for your project, taking into account your technical requirements, aesthetic preferences and budget constraints. With expert support and quality materials, you'll ensure that the end result not only looks good, but also lasts over time and with use.