[Andrew44]

There seems to be dried run marks on a window I cleaned.  It was first clean so a sprayed TFR (actual it was virasol) and left for no more than 5 to 10 mins probably nearer 5.

I know this can be a problem if it is left on for too long but surely just a few mins is nit enough to cause a problem is it?

Could it have been the virasol? 

[Dave Willis]

Yes if it was a strong mix. I've done the same with Fleetclean TFR. I never use the stuff any more.

[Andrew44]

20:1 mix

That's not strong though is it?

[Blue Frog Systems]

If you did it while the sun was out then yes.

I use Virosol, but ONLY for conny roofs at 1:23

[Rogue Trader]

TFR on windows!! i think the problem is there

[Andrew44]

If you did it while the sun was out then yes.

I use Virosol, but ONLY for conny roofs at 1:23

So I presume you do use it on glass con roofs??

If so do you not use it when its sunny on glass con roofs?

[Smudger]

TFR on glass is not a problem unless left too long and in this weather you need to be quick.
 
i only use it at 2% as per instuctions.  and on windows in the sun i wet 1st then TFR - then scrub.

if you have TFR marks then you need to scrub it by hand

Darran

[Andrew44]

TFR on glass is not a problem unless left too long and in this weather you need to be quick.
 
i only use it at 2% as per instuctions.  and on windows in the sun i wet 1st then TFR - then scrub.

if you have TFR marks then you need to scrub it by hand

Darran

Thanks Darren

1. If you don't need to wet windows as its not that hot, how long would you leave the tfr on for? Max of how many minutes?

2. When you say scrub to get it off, what would you recommend?  Presumable soething more substantial than the WFP and brush?  Or will that do?

3. Will it always come off with enough scrubbing?   

cheers

[Smudger]

if the window is not in direct sunlight you've got around 15 mins. - in winter upto the 1/2 hr mark - depends
on how strong the solution and how much you put on.

as a rule of thumb i spray 3 windows & frames then scrub them returning to the 1st for final wash over and rinse.

from experience - i forgot 1 window and got some marks - re applying tfr and wfp'ing didn't touch it - it looked good until the water dried i only got it off with the green sponge scourer thingies..

Darran

[john tomkins]

if the window is not in direct sunlight you've got around 15 mins. - in winter upto the 1/2 hr mark - depends
on how strong the solution and how much you put on.

as a rule of thumb i spray 3 windows & frames then scrub them returning to the 1st for final wash over and rinse.

from experience - i forgot 1 window and got some marks - re applying tfr and wfp'ing didn't touch it - it looked good until the water dried i only got it off with the green sponge scourer thingies..

Darran

Oh dear, you will have removed the marks and left scratches... didn't you know you should only use the white scourers for glass, they are non scratch

[Smudger]

not the white ones - green and no they don't scratch the glass

opps- sorry mis- read above post - well the scrubber on the under pad is green !
& still never had any problems

Darran

[Craig Trevain]

Use the ubik 2000.

[Dave Willis]

Or Gardiners Ecover

[CLEANCARE WC]

Or Gardiners Ecover

bear baiting 

[sgibsoncleaning]

the tfr i buy is 100/1 mix

[Rogue Trader]

I dont inderstand this thread , using detergent on windows is trad cleaning isnt it

[Smudger]

Only if you use it everytime....

Darran

[Blackbushe Windows]

Not sure why tfr would be considered for windows even first clean. Had a new custy recently, not cleaned in 8 years, only used pure water even with soft brush just a bit longer needed and thorough soaking initially.

Very happy customer.

[richard jagger]

Dont put TFR on glass you don't need it.It sticks in the brush and make spots. If you must use something use IPA in your water.The TfR is more for UPVC and algae on connies.I would rather use GG4 and spray on brush and rinse well if I must.