PVC and pre-painted aluminum painting: the chromatic proposals and technological solutions of Lechler Tech

The solutions of Lechler Tech for painting doors, windows and panels in PVC and other materials used in the Architectural and Habitat sectors for Indoor and Outdoor usage.

Architectural Color Collection: the colour proposal of Lechler, specific for Outdoor usage

ARCHITECTURAL COLORS COLLECTION: collection composed of 123 solid colours and 29 effect colours, available in both gloss and satin matt versions. Every colour proposed has been developed after a study of the most used and most representative colours for interior décor with dedicated market research.

To facilitate a colour association, inside every fan, there is a table that indicates the colour relation with some RAL colours. In this way, it is possible to associate immediately the colours with the important international Standard. Pigments of the ARCHITECTURAL metallic colours employ the HR (High Resistance) tinters 29691 – 29692 – 29694 – 29696. 

Lechler Tech also presents PVC TREND CASE, a trendy colour selection for PVC Frames studied for designers.

Lechler’s painting of PVC for HABITAT manufactured items

These new finishes integrate the solutions that Lechler has already developed for painting PVC.

PVC is one of the most popular plastics in the world, and, thanks to the versatility of its composition, it is used in countless applications in various fields, from building to packaging, from furnishing components to fashion accessories. One sector of major use (50%) and development is the Habitat world for the realization of manufactured items such as fixtures (windows, verandas, shutters), doors and shutters, barriers and fences.

Why are the components for the house made of PVC?

• The material is suitable for producing manufactured items of any shape and thickness
• It has a good resistance to scratches and shocks
• Good mechanical stability and lightness: the manufactured items do not deform
• It has excellent thermal insulation properties
• Good weather resistance against  UV, IR and good chemical resistance

Why should we paint PVC?

To further improve its resistance. Suitable painting processes improve even more chemical, thermal and mechanical resistances of PVC: they are an excellent solution to long-term decay problems of manufactured items, especially in case of prolonged and critical exposure to sunlight, weather and pollution.

To have a rich range of colours and aesthetic effects. The few colours available on the market (in blend production) limit the designers’ creative proposals and possibilities. Through painting you can customize any kind of production, by choosing among dozens of colours and colour effects, and providing clients, architects and interior designers with countless aesthetic solutions, including solid, metallic, mica finishes and gloss, semi-gloss, matt effects.

Technical solutions

These 2K products are applicable in one coat and have good direct adhesion to PVC, but also other kinds of plastics, non-ferrous materials and glass, ensuring scratch and weather resistance. They allow to obtain one-coat, quick and cheap painting processes mainly aimed at medium/large areas; they guarantee the realisation of a protection film with homogeneous surface aspect.

Waterborne cycles with direct adhesion: 

HydroFramecoat PVC Flex LH 282 - Two-pack semi-matt acrylic enamel(25-35 gloss)

• Direct application on rigid and flexible and ABS substrates
• Easy to apply on complex shapes
• Good adhesion (using special hardener) on door and window frame gaskets
• Available in all solid colours

Solvent-based cycles with direct adhesion 
Framecoat PVC LS 282 - LS 472 - Two-pack semi-matt acrylic enamel (45% Gloss - 20/25% Gloss)

• Direct adhesion not only on rigid PVC, ABS and PC/ABS, but also on substrates in aluminum and its alloys
• Uniform satin aspect 
• Available in all solid colours

2K Top Coat Plasticgrip LS 943 - Two-pack semi-matt acrylurethane enamel

• Good adhesion on rigid PVC, ABS and fixtures metal sections
• Excellent scratch and abrasion resistance
• high performance
• Available in metallic and mica colours
• Topcoat available in a wide range of colours for indoor use
• Ideal for large areas

These finishes are available in a wide colour range for indoor applications of the following manufacturers: 

• RAL 841 GL (solid colours),RAL 840 HR metallic – mica – fluo colours), MASTER CHROMA EFFECT, TINTE BASE- BASE COLORS (Lechsys Effect Tinters colour fan), NCS, CUBE EFFECTS

QB certified products

Framecoat PVC LS 282, LS 472 solvent-based products have obtained QB certification for coated PVC profiles; the 2K Plastigrip WS LS 943 product has obtained double certification in PVC and prepainted aluminum.
Hydroframe Coat PVC Flex LH282 water-based solution has obtained QB Profilés PVC revêtus Certificat.

The QB mark (from French “Quality in Building”), certification mark of CSTB, is a reference point for quality, performance and reliability of products and production and building processes. This voluntary process assures quality of certified products, in particular by monitoring the production processes. The certification has value in the European market, but especially in the French one.

Colours with high TSR

In the product range for PVC you can find medium/dark colours with a high TSR*; these colours increase the reflection of IR rays by lowering the temperature that the manufactured item can reach when exposed to solar radiation – if compared to an equivalent standard colour. These colours are realized using a particular black pigment (29511 and YD511).

The adoption of finishes with a higher TSR allows the manufacturers to plan less complex (then more lightweight and inexpensive) structures, as more "thermally insulated" and less subject to deformations due to the high temperatures.

*TSR Total Solar Reflectance indicates the percentage of energy provided by the sun that is rejected by the surface of the material; it is calculated in percent. For example, the white RAL 9010 normally has a TSR value of about 80%, while the black RAL 9005 reaches a value of about 4%.

The use of this pigment, present in all GENTEK colours and in some formulations of medium/dark shades (series P) from Architectural range, allows to significantly raise the TSR value of the colours in which it is employed, this lowering the maximum temperatures they can reach. It also allows to know, through the Heat Buildup Test, the temperature increase that each colour can achieve in exposure to the sun.

For example, in RAL 9005 the temperature can decrease from 75°C to about 55°C, as well as in a brown, such as RAL 8017, you can switch from 75°C to about 60°C.