Vacuum Rings case story -

Our vacuum rings secures and seals your process of laminated glass.

Trelleborg vacuum rings hangingThe possibility to laminate glass was discovered by coincidence in 1903. During the First World War laminated glass was used in military applications. However, laminated glass really “broke through” in the late 1920’s.  Thanks to  Henry Ford laminated glass began its journey into the automotive industry. Henry himself demanded that every car that left his factories should have a laminated windshield.

In today’s modern cars glass is taking increasingly more space. The windshield, today always a laminated glass, is glued to the frame as a supporting part of the car body. Different functions such as antennas, alarms, rain sensors and displays are also often integrated in the car lites. Side- and back lites are also more and more often made of laminated glass
During our time manufacturing vacuum rings, we have developed two specially designed materials. The first being a Silicone base polymer the GT, extreme high elasticity and tensile strength and incredibly high durability. Resulting in a very high number of production cycles. 
The second material is developed specifically for customers that require a silicone free material GT-3. With similar performance characteristics to the silicone. However, lifetime for the silicone free material is outshined by our silicone. 
Why don’t some customers want silicone? simply put silicone can leave a residue on the glass and make it difficult to glue during the assembly process of the windscreen to the car chassis. 

Task/challenge:
Finding a material that has the same mechanical properties as our silicone but without the residue. 

Solution: 
The GT-P. 
Working side by side with one of our key customers we have developed a silicone material that leave no residue on the windshield.
Durability, tensile strength and all other properties cannot separate the GT and the GT-P.
The GT-P will soon be released to a wider range of customers for implementation.
So far the feedback is very promising and we see the potential for our GT-P very promising.
quick facts
  • Both silicone and silicone free options available
  • Vaccum rings can be customized to fit all different glass geometries
  • Standard profiles cover laminated glass thickness from 4mm to 20 mm

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