It will restore the strength to the damaged glass. BS
AU251:1994 is the relevant British standard for measuring the
performance of windscreen repair
equipment and copies are
available from BSI if required.
Cosmetic improvement.
Repairs restore the optical or
cosmetic appearance.
The size of the blemish left is a function
of the severity of the initial damage.
Durability.
Repairs are permanent and the vehicle can
be washed or driven immediately after repair.
Heated windscreens can be repaired in exactly the same
manner as ordinary windscreens.
Tinted windscreens or tinted top band areas can be
repaired in the same manner as plain windscreens.
The "colour"
is in the PVB interlayer not the glass. The glass picks up the
colour from the interlayer, the repair resin will do exactly the
same.