Urethane vs Butyl Windshield Adhesive

1
URETHANE VS BUTYL WINDSHIELD ADHESIVE
2
Urethane Windshield Adhesive
Urethane is the common name for Polyurethane.
It's an adhesive designed specifically for
sealing and bonding windshields, side windows,
quarter glass, and rear window back glass in the
automotive industry. Urethane is a dark material
that cures completely and is quite flexible.
Urethane is now employed in high-performance car
glass bonding applications in both foreign and
domestic vehicles as technology advances.
3
Benefits of Using Urethane

• Urethane has the capacity to endure significant
  levels of deformation while maintaining adhesive
  strength and function.
• They are abrasion-resistant and robust.
• The Beta seal urethane adhesives are designed to
  survive prolonged exposure to the elements.
• Polyurethane has a holding strength of 10,000 PSI
  once it has been cured. This is highly robust and
  will keep any windshield firmly attached to the
  vehicle.
• Because of its flexibility, polyurethane works
  well as a windshield adhesive.

4
Butyl Windshield Adhesive
Butyl is actually a windshield sealant, not an
adhesive. Butyl is a black, sticky material that
seals holes well but is no longer used as a
windshield glue. It was popular until the 1970s
and costs about half as much as urethane. As a
result, despite the fact that it is not as safe,
many installers continue to use it. Butyl is
still a good sealer and can be used to close
minor holes despite this. It is resistant to
stress and temperature fluctuations. Butyl does
not cure or harden after installation, unlike
urethane, it does not form a strong bond with the
car. This leads to the windshield having an
extremely weak attachment with the car, causing
the glass to eject from the vehicle during
frontal accidents.
5
Urethane or Butyl- Which to Use?
Which one of these to use totally depends on your
requirements. So, if you have a chipped or
cracked windshield that has to be replaced, it is
best to seek the help of professionals. Also, do
enquire if the windshield experts replace it
according to manufacturer specifications and is
AGRSS approved. You should also enquire about
whether they utilise urethane as an adhesive and
how long they recommend the automobile be left to
cure before driving.