Before you do car bumper repair in Australia, it is important to understand the material that the bumper is made from so that you can come up with the best ways to repair the bumper. Modern bumpers are made of a combination of different materials. Bumpers should have an impact absorbing device to allow bumpers to absorb impacts in case of a collision.
Steel or aluminium part
After the springy part that is meant to absorb impact,
the next part of a bumper is the aluminium or the steel support structure. This
is a lateral beam. On top of this, there is an egg-crate shaped piece of
plastic made of HDPE. This part defines the external shape of the bumper and
supports the cover.
Urethane or flexible polyethylene
This is the outside cover of the bumper that gives it
a finished appearance. When you take your car to a car bumper repair near
you in Australia to repair scratches, this is the part that is usually
repaired. These are either flat black or charcoal black. They can also be
painted to match the finish of the car. They are designed to be resistant to
impact and can take a hit with no or little damage.
Metal bumpers
Metal transfers the applied load at one end to the
other of the car with negligible loss. This means that metals aren’t optimum
materials for making bumpers.
Plastic
Plastic bumpers tend to absorb load and minimize the
effect of the impact. Rubbers also tendto absorb impact.
The design of the bumper
Before you do any car bumper repair, you
should understand the design of your bumper. Bumpers are big so they are
processed by different techniques like blow moulding, injection moulding and
roto-moulding. Plastics are a suitable material of choice considering the above
bumper processing techniques.
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