Sealant Discolouring/spots on Beading

[Merlin53]

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

 

[Buckman]

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?

 

[Merlin53]

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.

 

[Buckman]

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.

 

[JezzerB]

Mould in the mastic. Nothing will remove it other than bleach. Proceed with caution. Our dealer redid ours ( small areas) under warranty.

 

[Hutch]

Try " Pink Stuff" its pretty good, I bought my last pot in Lidls.

The Pink Stuff Cleaning Paste - All Multi-Purpose Tough Household Cleaning paste : Amazon.co.uk: Grocery

The Pink Stuff Cleaning Paste - All Multi-Purpose Tough Household Cleaning paste : Amazon.co.uk: Grocery

www.amazon.co.uk

Also toothpaste works well.