A
building rubber profile or rubber window seal is a strip of rubber,
which is placed between glass and window frame to minimize noises
and gas permeation. By using rubber in this form it allowed window
or door panes to fit perfectly into their frames. It is also used
to isolate vibration from the movement of windows and building.
As an interface buffer, structural gaskets must incorporate these
features:
- Excellent in sunlight ageing
- Excellent in compression set
- Good in Weather resistance
- Good in Ozone resistance
- Good in Oil and Petrol resistance
Manufacturing process
- Preparation of Rubber Compound
Mixing is carried out on a two-roll mill or in
an internal mixer. In the case of an internal mixer, it can be done
in a single-stage or double-stage mixing where the masterbatch,
which was earlier prepared in the internal mixer, is finalized by
adding curatives on a two-roll mill.
- Determination of scorch time and cure characteristics
and physical testing
(e.g. hardness, tensile properties, tear resistance, flex-cracking
resistant, ozone resistance etc.)
All the above properties are required before
going to the subsequent processes such as moulding, extrusion, etc.
- Preparation of rubber strips
Rubber is cut into strips for extrusion process
- Shaping and curing of the gaskets
Rubber Strips were feed into extruder with appropriate
die, then follows by vulcanisation process via hot air tunnel or
microwave
- Gasket is cut according to the size required
|
Window gasket
Petronas twin-tower |
