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Topic: re-caulking exterior windows (Read 16 times) previous topic - next topic
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re-caulking exterior windows
Yahoo Message Number: 56454
Our '05 MB was parked under some gummy trees in a park for one week and the white rear window caulking is badly discolored.

The brown stain seems to be "in" the white caulk and looks bad.  It seems resistant to bleach, tar remover and several other cleaners.

On close inspection, I also noticed several gaps in the caulk that appear could let in water.

Questions:

1- would I need to dig out (sounds drastic...) the stained caulk and  replace it?  If yes is there a documented process to avoid damage to  the paint and window frame?  
2- I was given a tube of caulk at the factory, is the the best thing
 to use to fill the voids in the original sealing job?

Any ideas?

Ron and Linda Tenny Tyrone, Ga

Re: re-caulking exterior windows
Reply #1
Yahoo Message Number: 56457
Quote
Our '05 MB was parked under some gummy trees in a park for one week and the white rear window caulking is badly discolored.

The brown stain seems to be "in" the white caulk and looks bad.  It seems resistant to bleach, tar remover and several other cleaners.

On close inspection, I also noticed several gaps in the caulk that appear could let in water.

Questions:

1- would I need to dig out (sounds drastic...) the stained caulk  and replace it?  If yes is there a documented process to avoid damage  to the paint and window frame?
  I have used a silicon base caulk, non paintable, with good results.
 You need to use the non paintable caulk because it will not allow  the dirt, etc. to penetrate.

Quote

2- I was given a tube of caulk at the factory, is the the best
 thing to use to fill the voids in the original sealing job?

Any ideas?

Ron and Linda Tenny Tyrone, Ga
Ross Taylor
2017 MB

Re: re-caulking exterior windows
Reply #2
Yahoo Message Number: 56460
"Ross"  wrote: "I have used a silicon base caulk, non paintable, with good results." ----

Just a FYI: the factory advises *not* to use silicone caulk for any application on the LD.  I would suggest calling Vince at the factory for a recommendation.

Joan
2003 TK has a new home