[Top Down]

Can't find any in our area. Seems to be unheard of. Anyone found an easily sourced alternative that works please? 

I used to apply Johnsons Klear and the later 'Future' follow-on with a soft brush and being water thin it would level out and dry glass smooth.

[Kevan]

'Pledge Floor Care' seems to be the reincarnation.

[Kevan]

[Savage GT]

As Kevan said, its now known with a different name.

Other alternatives are Humbrol Clear : AC7431 Humbrol Clear 125ml
Not tried it myself, but many modellers rate it.

Or Windsor and Newton Galeria https://www.amazon.co.uk/Winsor-Newton-G...JLPVQ?th=1
Comes in Gloss,Matt and Satin.
I have a bottle of satin I have used on some railway coaches for my Father, and it is just as easy to use as "Klear" which I also have.

All of the above are acrylic, so water based, in theory should work without upsetting any other paints, but as always, test on an inconspicuous area first ;)

[Kevan]

I use Vallejo VJ26701 Acrylic Airbrush Gloss Varnish - straight in the paint cup.

When I'm finished I wash through with clean water whilst opening and closing the trigger.

[Top Down]

Excellent. I'll keep my eyes open for the Pledge version then 

[Mitch58]

I've tried several different brands of floor polish on cars, they basically all work the same.