Dave wrote:
About to move into yet another new house, its always been a problem
that the concrete garage floor with new properties, however many
times I sweep/wash them, shed white dust (which I promptly tread into
my wifes new carpets).

I intended to paint the new garage floor with "floor paint" to avoid
this problem, however my mate tells be to beware as he has used floor
paint in his garage and finds that, especially when wet, the car
suffers wheel spin getting into/out of the garage.

Anybody else confirm this ?

I have just bought 5L of PVA to try and seal the floor as an
alternative to the paint.

Use International Paint "Liquid Lino". Your "mate" must have a heavy
foot. I would not use PVA.