Farang two dot zero Posted August 10, 2019 Share Posted August 10, 2019 I come back from Thai Watsadu shop and the salesman is heading me to a brand of Silicone sealant that I do not know. I doubt his impartiality so if someone would you have a good mark to advise me for white silicone no more than 200 bath for example TOA or 3M ? Link to comment Share on other sites More sharing options...
eyecatcher Posted August 10, 2019 Share Posted August 10, 2019 Lots of silicones and sealants of different colours. Unless you told him what you need it for then his advice isnt worth a jot. So, to help you out, i will ask the question. Is it for: santaryware, glass,general external use, roofing, worktops, cracks. I currently have four 3m tubes, 2 bosny and 1 double D. Only got tge 3m because they were and always are 2 for 1.....200bt should be for two. Most important and i fell foul of this in a local merchant and global. Check the expiry date, if its not 12months hence put it back. I bought some 12 month expired and it was almost solid. Both stores received my full displeasure. Link to comment Share on other sites More sharing options...
worgeordie Posted August 10, 2019 Share Posted August 10, 2019 Homepro have 3M silicone sealer,it is /was buy one get one free. it's a good sealer. Dow is the original silicone sealer ,but never see it now. regards Worgeordie P.S. joints in what,?, cracks in walls,around windows ? you cannot paint over Silicone sealer. Link to comment Share on other sites More sharing options...
stubuzz Posted August 10, 2019 Share Posted August 10, 2019 Polyurethane sealer is another option. Sikalfex is a quality brand. Link to comment Share on other sites More sharing options...
Kwasaki Posted August 10, 2019 Share Posted August 10, 2019 Black silicon 60 baht good stuff. Link to comment Share on other sites More sharing options...
Farang two dot zero Posted August 10, 2019 Author Share Posted August 10, 2019 2 hours ago, Kwasaki said: Black silicon 60 baht good stuff. Black ? Color ? Brand ? Link to comment Share on other sites More sharing options...
Farang two dot zero Posted August 10, 2019 Author Share Posted August 10, 2019 4 hours ago, eyecatcher said: Lots of silicones and sealants of different colours. Unless you told him what you need it for then his advice isnt worth a jot. So, to help you out, i will ask the question. Is it for: santaryware, glass,general external use, roofing, worktops, cracks. Glass and interior wall ! Link to comment Share on other sites More sharing options...
Scott Posted August 10, 2019 Share Posted August 10, 2019 Troll posts and replies reported and removed. Continue and face a suspension. Link to comment Share on other sites More sharing options...
emptypockets Posted August 10, 2019 Share Posted August 10, 2019 4 hours ago, worgeordie said: Homepro have 3M silicone sealer,it is /was buy one get one free. it's a good sealer. Dow is the original silicone sealer ,but never see it now. regards Worgeordie P.S. joints in what,?, cracks in walls,around windows ? you cannot paint over Silicone sealer. You can get paintable silicone these days. Link to comment Share on other sites More sharing options...
emptypockets Posted August 10, 2019 Share Posted August 10, 2019 2 hours ago, stubuzz said: Polyurethane sealer is another option. Sikalfex is a quality brand. Sikaflex, the Rolls Royce of sealants. Best stuff made. Link to comment Share on other sites More sharing options...
Kwasaki Posted August 10, 2019 Share Posted August 10, 2019 1 hour ago, Farang two dot zero said: Black ? Color ? Brand ? Any, silicon is silicon any cheap one works for me. Link to comment Share on other sites More sharing options...
canopy Posted August 11, 2019 Share Posted August 11, 2019 The biggest mistake I see people make is they don't know there are two types of silicon: neutral and acidic. Acidic can corrode metal, stain paint and wood, and cause problems on other types of surfaces. All bottles of silicon at the hardware stores I have seen clearly state acidic/neutral in English so making the right choice is easy to do but the sales people don't tend to know anything about this very important attribute. Link to comment Share on other sites More sharing options...
grollies Posted August 11, 2019 Share Posted August 11, 2019 47 minutes ago, canopy said: The biggest mistake I see people make is they don't know there are two types of silicon: neutral and acidic. Acidic can corrode metal, stain paint and wood, and cause problems on other types of surfaces. All bottles of silicon at the hardware stores I have seen clearly state acidic/neutral in English so making the right choice is easy to do but the sales people don't tend to know anything about this very important attribute. Cheers, didn't know that. Looking for some to seal between a stainless frame and concrete posts. Link to comment Share on other sites More sharing options...
eyecatcher Posted August 11, 2019 Share Posted August 11, 2019 12 hours ago, emptypockets said: You can get paintable silicone these days. Yes its acryllic silicone and far less messy. I bought some black recently, little less viscous and i suspect its not up to the same standard as real silicone, but time will tell Link to comment Share on other sites More sharing options...
eyecatcher Posted August 11, 2019 Share Posted August 11, 2019 2 hours ago, grollies said: Cheers, didn't know that. Looking for some to seal between a stainless frame and concrete posts. You need external quality mastic not silicone. It "should" have elastic qualities that allow expansion and contraction of the surrounding materials. Whatever is used however wil not last very long in the sun here. It will degrade in 18monthsand shrinkand fall away. Link to comment Share on other sites More sharing options...
canopy Posted August 11, 2019 Share Posted August 11, 2019 14 minutes ago, eyecatcher said: Whatever is used however wil not last very long in the sun here. It will degrade in 18monthsand shrinkand fall away. Something that degrades in 18 months is probably acrylic, not silicone. Silicone has excellent outdoor durability and should last more than 20 years in the sun. When making a joint it is critical to use backerrod (pictured in green) and make an hourglass shape so the sealant can stretch rather than pull away from the sides. Link to comment Share on other sites More sharing options...
Farang two dot zero Posted August 12, 2019 Author Share Posted August 12, 2019 On 8/10/2019 at 10:42 PM, emptypockets said: Sikaflex, the Rolls Royce of sealants. Best stuff made. I bought it at Thai Watsadu 249 THB this I will test now ! Link to comment Share on other sites More sharing options...
grollies Posted August 12, 2019 Share Posted August 12, 2019 22 hours ago, eyecatcher said: You need external quality mastic not silicone. It "should" have elastic qualities that allow expansion and contraction of the surrounding materials. Whatever is used however wil not last very long in the sun here. It will degrade in 18monthsand shrinkand fall away. It's to be used indoors, no UV exposure. But thanks also. Link to comment Share on other sites More sharing options...
tutsiwarrior Posted August 14, 2019 Share Posted August 14, 2019 got Bosny roof sealant for upstairs bathroom floor/wall joints that the chang said was OK...any comments? will apply today then test with deluge... Link to comment Share on other sites More sharing options...
Farang two dot zero Posted September 9, 2019 Author Share Posted September 9, 2019 I love Thai Watsadu, these b*st*rds sold me an expired silicone gel ! Link to comment Share on other sites More sharing options...
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