Core Proficiencies

• Overview
• Window and door profile extrusion
• Coextrusion
• Tool construction
• Dry-blend composition
• Marketing and advertising

Building blocks of our success

• Vision
• Philosophy
• Corporate guidelines
• Employee guidelines
• Leadership guidelines
• Core proficiencies
• Corporate history

Company

• The various locations of the GEALAN Group
• Success factors of the GEALAN Group
• GEALAN employees
• Initiatives
• Responsibility / environment
• Purchasing department

GEALAN international:

Success factors

The building blocks of our success

Core Proficiencies of the GEALAN Group

The Coextrusion Process

"Producing quality means achieving a perfect interplay between man and machine. GEALAN today uses modern, high-tech processes to precisely shape plastic."

Wolfgang Auernheimer, Director of Extrusion

 

 

 

In the coextrusion process the base body, while still in a semifluid paste form, is inseparably bonded with a molten acrylic paste. This process is carried out within a special coextrusion tool die, in which a second extruder is mounted onto the main extruder and feeds the acrylic paste into the tool die. The coloured acrylic surface is added to that part of the profile that later will be exposed to sunlight, rain and snow. The acrylcolor profile then leaves the tool die, already two-coloured. This combination of two disparate materials (acrylic and PVC) results in a product that can fulfil its intended role even better. Coextrusion stands for unparalleled colour stability. Even after years between installing replacement windows, there is no visible difference between the first and the last window frames.

GEALAN has been using the coextrusion process since 1980. The resulting experience in the field has been rewarded the RAL seal of quality, as well as the South German Plastics Centre's quality mark. The same process is also used to create recycled profiles.