Best was to get black marks off a UPVC frame

[windymillers]

I did a first clean yesterday on a bungalow with UPVC windows.

When soaping up the glass loads of black liquid came running out, obviously months of 

dirt and grime build up.

I expect more dirt and grime to come out the next few cleans, problem is it stains the

white UPVC frames.

The customer was great about it and was pleased with the job I did but there are 2 windows

that I would like to improve next time.

Any suggestions on what to use to get rid of the black marks on the frame?

 

[Jimbo]

I did a first clean yesterday on a bungalow with UPVC windows.
 
When soaping up the glass loads of black liquid came running out, obviously months of 
dirt and grime build up.
I expect more dirt and grime to come out the next few cleans, problem is it stains the
white UPVC frames.
The customer was great about it and was pleased with the job I did but there are 2 windows
that I would like to improve next time.
Any suggestions on what to use to get rid of the black marks on the frame?

I use Aldi magic erasers, they are amazing. You can buy the branded version, but the aldi ones are so good, get upvc looking like new with just water on them.

Sent using the http://Window Cleaning Forums mobile app

 

[windymillers]

Thanks Jimbo, I will try them next time I clean her windows.

 

[Clisty1989]

I did a first clean yesterday on a bungalow with UPVC windows.

When soaping up the glass loads of black liquid came running out, obviously months of 

dirt and grime build up.

I expect more dirt and grime to come out the next few cleans, problem is it stains the

white UPVC frames.

The customer was great about it and was pleased with the job I did but there are 2 windows

that I would like to improve next time.

Any suggestions on what to use to get rid of the black marks on the frame?

Sound like the seals have perished, usually if it's black it's run off from seals, brown is dirt, and yellow is nicotine (on insides)

 

[Green Pro Clean Ltd]

I would use a stiff brush, a bucket of soapy water and the garden hose.   Keep scrubbing and rinsing the seals till the water is running clear.  

Magic sponges are OK but not the best when the seals have been smeared onto the frames.   Unger Rub Out with a scouring pad will work very well as will bronze wool 000 grade.  

For a real cheap fix.  Thinners will work if it hasnt been left too long. 

 

[Clisty1989]

I would use a stiff brush, a bucket of soapy water and the garden hose.   Keep scrubbing and rinsing the seals till the water is running clear.  

Magic sponges are OK but not the best when the seals have been smeared onto the frames.   Unger Rub Out with a scouring pad will work very well as will bronze wool 000 grade.  

For a real cheap fix.  Thinners will work if it hasnt been left too long. 

I'll remember that one, always a PITA job when they're bleeding.