I have a south facing side of my van where the white silicon sealant around by boot has turned black with mould. Other than cut and scrape it out and replace it, is there easier or simpler solutions
Looking fw to hearing from you guys out there
Regards
Ron
Bicyclecamper said
03:02 PM Apr 4, 2023
Selley's Rapid Mould Killer, Bunnings about $8, spray on, leave on for 5 minutes, then wipe off with a wet clean cloth then dry, best mould cleaner and killer out there. Use gloves and mask, as it is pretty strong. Also good for mould on van exterior walls, awnings, chairs, anything.
Ronzo said
08:33 AM Apr 5, 2023
Thanks
Ronzo said
08:40 AM Apr 5, 2023
The black mould is embedded in the silicon sealant, its not on the surface. Will this product penetrate into the sealant?
Radar said
12:22 PM Apr 5, 2023
Ronzo wrote:
I have a south facing side of my van where the white silicon sealant around by boot has turned black with mould. Other than cut and scrape it out and replace it, is there easier or simpler solutions Looking fw to hearing from you guys out there Regards Ron
I use vinegar mixed about cup full in few litres of water.
I believe the mould is ontop of the silicone.
hufnpuf said
06:05 PM Apr 5, 2023
If the mould has gone inside the sealant, it wouldn't be effectively sealing any more, would it?
If it's just on top, you could also try "30-seconds outdoor cleaner". My previous van had black spots on the exterior and it took them straight off.
Mamil said
09:14 PM Apr 5, 2023
I used this stuff in my bathroom, applies over existing sealant, got it from the big green shed.
Strangely mould will grow quite happily inside silicone sealant. Unless you purchase a silicone like Bathroom and Kitchen or Wet Area Sealer that contains a mould growth inhibitor.
You may find this very difficult to eradicate. Don't forget that many of the liquids others have suggested may react with components of your van. Physical removal and replacement although time consuming maybe the best alternative.
The best sealant to use where silicone has already been used, is another silicone, as many other sealants will not adhere correctly to the substrate if silicone is still present, even a very thin film..
regards,
Bob.
Dick0 said
01:49 PM Apr 7, 2023
Bicyclecamper wrote:
Selley's Rapid Mould Killer, Bunnings about $8, spray on, leave on for 5 minutes, then wipe off with a wet clean cloth then dry, best mould cleaner and killer out there. Use gloves and mask, as it is pretty strong. Also good for mould on van exterior walls, awnings, chairs, anything.
Works a treat!
Possum3 said
04:40 PM Apr 7, 2023
Agree with Ric - Selleys Mould Spray works a treat.
Ronzo said
09:05 AM Apr 22, 2023
Thanks again everyone
Ive decided after considering all options to just cut the old moulded silicone out , cleaned it thoroughly let it fully dry then re siliconed it with opaque Selleys silicone that has a mould inhibitor in it and it came up like new
All the best
Ron
I use vinegar mixed about cup full in few litres of water.
I believe the mould is ontop of the silicone.
If the mould has gone inside the sealant, it wouldn't be effectively sealing any more, would it?
If it's just on top, you could also try "30-seconds outdoor cleaner". My previous van had black spots on the exterior and it took them straight off.
I used this stuff in my bathroom, applies over existing sealant, got it from the big green shed.
Strangely mould will grow quite happily inside silicone sealant. Unless you purchase a silicone like Bathroom and Kitchen or Wet Area Sealer that contains a mould growth inhibitor.
You may find this very difficult to eradicate. Don't forget that many of the liquids others have suggested may react with components of your van. Physical removal and replacement although time consuming maybe the best alternative.
The best sealant to use where silicone has already been used, is another silicone, as many other sealants will not adhere correctly to the substrate if silicone is still present, even a very thin film..
regards,
Bob.
Works a treat!