no it doesnt it gets smaller
no it just melts.
First, not all plastic melts, secondly the fact of something melting has nothing to do with its electrical resistance.
because plastic melts.
It melts and gets hard
It melts...
The plastic outside melts.
. it melts
It all depends on the type of plastic. some contain chemicals which allow it to stretch
It gets stretched.
You aim the hot air at the plastic edges and it melts as you put them together.
Fire does not melt plastic. Fire creates the thermal energy, heat energy, melts plastic.
It will shrink slightly, until it melts. Note: If it melts or burns, its a plastic, and will give off noxious fumes.