Sealant Discolouring/spots on Beading

Feb 3, 2009
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Hi Folks,
We have been trying to remove the spots and discolouring on the external beading of our Burstner motorhome with various detergents to no avail.
The beading is not 'breaking down', it just appears to be discoloured probable due to weathering process in the winter.
Is there any products that can cosmetically remove the discolouring from the beading without causing any damage?

Regards,
merlin
 
Jul 18, 2017
5,013
1,173
11,935
Hi Folks,
We have been trying to remove the spots and discolouring on the external beading of our Burstner motorhome with various detergents to no avail.
The beading is not 'breaking down', it just appears to be discoloured probable due to weathering process in the winter.
Is there any products that can cosmetically remove the discolouring from the beading without causing any damage?

Regards,
merlin
Is it possible to tell us the material of the beading or even better also post a picture of the discoloured areas?
 
Feb 3, 2009
110
0
18,580
Thanks for the response, don't really know what the sealant material is, I would assume it's some compound of a silicone base.
The photo shows the discolouring above the top of the windscreen.

IMG_20211226_134710_HDR.jpg
 
Jul 18, 2017
5,013
1,173
11,935
It looks like the discolouration is on the mastic. We bought the Oxo Good grips deep clean brush set off Amazon and used Fenwicks neat to clean the mastic. Worked for us.
 
Jan 31, 2018
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Mould in the mastic. Nothing will remove it other than bleach. Proceed with caution. Our dealer redid ours ( small areas) under warranty.
 

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