DIY Doctor

Main navigation

black stains on windows

Postby gulpy10 » Sun Nov 11, 2007 1:52 pm

We got some windows/doors which keep turning black. It's idigbo wood coated with sikkens cetol hls which contains a fungicide

see below for images

How can the discolourisation be prevented?
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sun Nov 11, 2007 1:44 pm


Gorilla Glue heavy duty grab adhesive

Postby pablo2 » Mon Nov 12, 2007 9:15 pm

hello Gulpy

It may be a reaction to the stain I havn't heard of this wood but that would be unlikely, it may be the nails used to secure the beads , copper , steel or zinc have differing effects on deiffent woods , I would guess though if the staining is mainly on the horizontal beads it is from water ingress . Quite often these beads are put on with putty on a roll , this tends to stick to the glass but not the bead in addition it may be badly trimmed . check carefully to see if there is any crack between the putty and the bead . If you have no joy here try phoning Sikkens technical help and ask them .

Good luck Pablo
Rank: Tradesman
Progress to next rank:
Posts: 44
Joined: Wed Sep 26, 2007 7:39 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics