Rob99 Posted September 19, 2020 Share Posted September 19, 2020 (edited) I have a gap (see sketch) between my flooring and an aluminium bifold door frame threshold which I am covering in with an aluminium angle trim which I have had powder coated to the same colour as the door frame. The length of the trim/threshold is about 4m. What is the best adhesive/sealant to use to permanently fix the trim to the door threshold? Edited September 19, 2020 by Rob99 Link to comment Share on other sites More sharing options...
Nick Posted September 19, 2020 Share Posted September 19, 2020 LMN Silicone will do the job just fine as long as you run a bead across the whole length. Also has some flexibility so won't break away easily when the two aluminium sections expand/contract at different rates. Link to comment Share on other sites More sharing options...
Rob99 Posted September 19, 2020 Author Share Posted September 19, 2020 4 minutes ago, Nick said: LMN Silicone will do the job just fine as long as you run a bead across the whole length. Also has some flexibility so won't break away easily when the two aluminium sections expand/contract at different rates. Thanks Nick How long will it take to cure? It's just that I will need to clamp it as some of the flooring is a little "bouncy" Link to comment Share on other sites More sharing options...
Nick Posted September 19, 2020 Share Posted September 19, 2020 Stuff we use grabs within a few minutes. I would say 24h to cure to the point where it won't move under a gentle bit of local pressure like floor movement. If you have access, just throw a few self tapping screws in after the silicone. Try to get them to only pierce the first wall of the door profile so they don't stick out visibly into the threshold. Link to comment Share on other sites More sharing options...
Rob99 Posted September 19, 2020 Author Share Posted September 19, 2020 Which product do you use? There seem to be loads. Unfortunately there's no access to use any other fixings Link to comment Share on other sites More sharing options...
Temp Posted September 20, 2020 Share Posted September 20, 2020 Other possible adhesive would be a PU adhesive like Tiger seal or Puraflex. Sticks plastic and metal well. Someone here recommended it for sticking plastic trim back on cars and i've used it for that a few times now. Think there are black and white versions. Gets everywhere if not careful. Link to comment Share on other sites More sharing options...
Nick Posted September 20, 2020 Share Posted September 20, 2020 8 hours ago, Rob99 said: Which product do you use? There seem to be loads. Unfortunately there's no access to use any other fixings Any Low Modulus Neutral-Cure (LMN) silicone will do. We use Silirub 2, it sticketh closer than a brother. Link to comment Share on other sites More sharing options...
Gone West Posted September 20, 2020 Share Posted September 20, 2020 I would probably use Soudal Fix All Crystal Clear. https://www.platinumchemicals.co.uk/products/soudal-fix-all-crystal-clear Link to comment Share on other sites More sharing options...
Rob99 Posted September 21, 2020 Author Share Posted September 21, 2020 Just ordered a few tubes of Soudal Silirub 2 in Anthracite Grey, so will see how that goes. Link to comment Share on other sites More sharing options...
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