Silicon Sealent - that does not go mouldy

[spaceyaface]

Good Afternoon All....anyone know of a product that states "no-mould" and actually works? Clear preferable...thanks

[Chewbacka]

Not the stuff I used around my shower base 3 years ago :-((

[stagedamager]

Try "The works." Not strictly a silicone based product butch better in my opinion.

Dan

[pophops]

Several brands of silicone sealant are advertised as being resistant to mould and mildew.

Unfortunately they are not proof against moulds under all conditions and do not perform so well when there is moisture constantly present.

I have had a lot of success in preventing blackening of the seals by using a shower cleaning spray after every shower.

You could also try regularly wiping the sealant with a weak bleach solution which will kill the mould spores.

[tree monkey]

Try "The works." Not strictly a silicone based product butch better in my opinion.

Dan

Well I suppose a butch sealant would scare the mould away

[pearley]

I find this from Screwfix to be good. However like others we, or rather Jeannette, cleans the shower down with a spray afterwards.

 

http://www.screwfix.com/p/dow-corning-785-bacteria-resistant-sanitary-silicone-white-310ml/58308

[stagedamager]

Well I suppose a butch sealant would scare the mould away

Stupid autocorrect! ; )

[Murflynn]

I use Bond-it PU18 as an adhesive and sealant and have not suffered from any mould. Perhaps silicone is prone to mould and polyurethane is not.

[bag 'o' bones]

I don't think there are any anti mould sealants out there that are 100% mould free but generally the more expensive the sealant the better the anti-mould properties. According to my tame plumber the trick is good ventilation - condensation is the main culprit. A good free draining sanitary design and careful sculpting of the seal to avoid water traps (corners for example) to avoid sitting water will also prevent the problem.

 

edit

 

also if haven't already fitted one, a time controlled shower fan is a good move.

Edited November 13, 2015 by bag 'o' bones

[FadeToScarlet]

I just scrape out the sealant and replace when it goes mouldy, I've done it once after two years and it's really not that big a job on my shower cubicle

[blackrose]

But why do that if you don't have to?

 

I've found that although Stixall from toolstation (crystal clear) doesn't say it's mould resistant, it doesn't go mouldy.

 

It's not a silicone sealant by the way, but a much more permanent modified polymer (PU?) sealant/adhesive.

[blackrose]

I use Bond-it PU18 as an adhesive and sealant and have not suffered from any mould. Perhaps silicone is prone to mould and polyurethane is not.

I think you're right. Soft silicone is probably a good habitat for moulds. Perhaps something to do with its surface properties.

[DHutch]

Is it "Dow Corning 785" that most building forums etc recommend?

 

To be hones through, I find you just have to keep on top of it with HG Mould Spray, and replaced every five years.

 

Its not a huge job. 2hours say?

 

 

 

Daniel

[nicknorman]

I found BAL silicone to be more mould resistant than most. I got it from Topps Tiles.

[Neil Smith]

What about sika flex or marine flex, they don't seem to suffer from mould.

 

Neil

[spaceyaface]

Is there a clear sikaflex? I love sikflex, though...its a fantastic product.

[smileypete]

Dow 785 as mentioned, also Everbuild Forever White or Unibond Ice White (pricy though)

 

Or anything with a long anti mould *guarantee* should do OK.

 

cheers, Pete.

~smpt~

[blackrose]

Is there a clear sikaflex? I love sikflex, though...its a fantastic product.

No clear marineflex, not sure about sikaflex. Stixall (from Toolstation and other suppliers) is similar and comes in a crystal clear variety.

 

http://www.everbuild.co.uk/stix-all

Edited November 15, 2015 by blackrose

[DHutch]

I don't think I have ever seen clear PU, you can get colours inc white, but not clear.

 

 

Daniel

[peterboat]

richard i can go past tool station and get some clear stixall if you want its just up the road

[ditchcrawler]

One thing I have found is that the better the finish you get on the sealant the less the mould seams to grow

[Neil Smith]

Is there a clear sikaflex? I love sikflex, though...its a fantastic product.

I bought clear sika flex from screwfix and love it, and unlike silicone you can paint over it.

 

Neil