7 percent residual materials

Around 93 percent of a VELFAC 200-product consists of components that are fully recyclable. The rest is made up of a small residual amount of materials that either cannot be reused or can only be reused to a limited extent. These residual materials are used, for example, in the glue as well as in the coating on frames and hinges.

We use varnish, water-based wood preservatives and paint on the frames in the VELFAC 200-series. The coating accounts for 0.4 percent of a window's total mass. One of its functions is to extend the lifetime of the components by protecting them from mechanical wear, humidity and UV rays. It also improves the appearance of the product.  

The coatings that we use for our products are selected with the utmost consideration for both our customers and the environment. This means that we strive to use varnish, wood preservatives and paint that have a low content of organic solvents and other harmful substances.

When a window is dismantled, the coating is removed from the aluminium. The coating applied to the wood is included in the recycling program.

Thermal glue and wood glue are used in the VELFAC 200-series, accounting for 0.2 percent of the product. Thermal glue is used as a sealant between the glass and the frame. This ensures optimal window stability and anti-burglary security. Wood glue is used on the frame in order to hold together the corners of the frame and make the window airtight.   

We only use the most eco friendly glue products on the market. This ensures that all glue used in our products is as harmless as possible to both people and the environment. At the same time, we are constantly striving to find new and even more environmentally friendly glue products.  

The glue applied to the pane is included in the recycling process of the pane. The remaining part which is applied to the frame is removed from the aluminium along with the coating and is not reused.

 Flot og elegant hus påført Velfacs vinduer i bæredygtigt materiale

GRP/fibre glass
We use GRP (glass reinforced plastic/fibreglass) in a few of our glass panel doors, including the VELFAC 200-series. GRP is used due its good insulation properties, which contribute to reducing heat loss. Furthermore, it has high mechanical strength and it is also useful in relation to challenging and complex constructions

GRP is not degraded by weather conditions and it is virtually maintenance free during its lifetime. This minimises the need for use of chemicals for maintenance. GRP is not included in our recycling program.

Polyamide (also known as nylon) is a thermoplastic material and, together with GRP, the main insulating material component of a VELFAC 200-product.

Polyamide is also known for its stiffness and its resistance to wear, chemicals and degradation by heat and sunlight. The material is resistant to both high and low temperatures.

In theory, polyamide can be part of a life cycle where it is reused in new products over and over again. Therefore, we are constantly striving to uncover possibilities of making the material 100 percent recyclable.

EPDM rubber
EPDM (also known as vulcanized rubber), along with TPE, constitutes 1.4 percent of the total mass of our VELFAC 200-products. The material is used for sealing windows against the elements.  

Thanks to its extreme durability, EPDM helps to ensure the longevity of our windows. It is extremely resistant to UV rays and all types of weather conditions. Properties which combine to make the material particularly suitable for use in windows.

EPDM is produced mainly with non-renewable resources originating in natural gas and mineral oil. During vulcanization, a chemical reaction takes place that makes it impossible to remelt the product.

TPE (also known as thermoplastic rubber), along with EPDM, constitutes 1.4 percent of the total mass of our VELFAC 200-products. TPE is a rubber-like, extruded material. It is used for sealing the rain shield of VELFAC 200-windows.

TPE shares a few of the properties that characterise EPDM, including good flexibility in cold weather. In thermoplastic processes, TPE can be lighter and less energy-consuming to extrude than EPDM.

The processing consists in the material being heated, formed and cooled – a process that can be repeated many times. In the same way, it is possible to melt and reuse the material.

PE (also known as polyethylene or thermoplastic resin) is used in the spacers that form part of the VELFAC 200-series. For this purpose, PE is used in its pure form. PE is also recast and used as insulating material in steel fittings to prevent the coating from decaying and the steel from becoming weak and corroding.     

PE is one of the most commonly produced types of plastic in the world. It is flexible and resistant to impact, water, humidity and organic solvents. PE is one of the most environmentally friendly plastics. It does not cause substantial harm to the environment, and it can be melted and solidified several times without decomposing. When it is incinerated, PE only releases emissions of CO2 and water. 

PE is fully recyclable in its pure form. This means that, as long as the PE is separated from other materials with which it is moulded, it can be recycled into new plastic components. Unlike POM, we only use remoulded PE to a small extent. Therefore, PE is very suitable for recycling without the components having to be separated first.  


POM (also known as polyoxymethylene) is used in the fittings that are incorporated into the VELFAC 200-products. It is a commonly used type of plastic. In addition to its strength, hardness and good insulation capabilities, POM possesses excellent wear and friction resistant properties.

POM can be reused in its pure form when it is separated from the steel hinges. POM is normally recast for use in our products. This means that, compared with for example PE, it has more components that need to be separated before the material can be reused.  

XPS foam
XPS foam is used as an insulating material between aluminium sheets in the VELFAC 200-series. In addition to its excellent insulating properties, XPS foam possesses a high compressive strength and humidity tolerance. 

XPS foam is based on expanded and extruded polystyrene and it can be recycled into new materials.

PU foam
Like XPS foam, PU foam (also known as polyurethane or PUR) can be used as an insulating material between aluminium sheets in the VELFAC 200-series. It is the best insulation material available.

Polyurethane is suitable for recycling, for example by being granulated and then reused as a new PUR material.

ZnNi (also known as zinc-nickel) is part of the surface treatment of the steel fittings in our VELFAC 200-products. Among other things, it prevents the fittings from rusting and corroding.  

ZnNi is not included in our recycling program. When the fittings are remelted after use, most of the zinc-nickel can be skimmed and removed, while the rest of the materials can be incorporated in the steel. 

Chrome 3
Chrome 3 (also known as yellow chromating) is used in the surface treatment of the fittings in our VELFAC 200-products. Due to its resistance to climate impacts, it contributes to ensure that the fittings that are particularly exposed to external impacts do not rust and corrode.  

Chrome 3 is not included in our recycling program. When the fittings are melted down, most of the Chrome 3 can be removed via skimming, while the rest of the materials can be incorporated in the steel.