gravelrash Posted February 3, 2022 Share Posted February 3, 2022 FG35 primer or standard Cromar bitumen roof primer for priming osb and block work to take Alutrix/ Elodene VCL? FG35 is 5 x price...is it really necessary Link to comment Share on other sites More sharing options...
nod Posted February 3, 2022 Share Posted February 3, 2022 Regardless of what it says on the tin Primers seal the surface They are always going to recommend there own Find something cheaper Especially if you are going to need a lot of it Link to comment Share on other sites More sharing options...
gravelrash Posted February 4, 2022 Author Share Posted February 4, 2022 anyone used just basic bitumen primer? Link to comment Share on other sites More sharing options...
redtop Posted February 4, 2022 Share Posted February 4, 2022 14 minutes ago, gravelrash said: anyone used just basic bitumen primer? Yes, black jack primer and it seems to work just fine Link to comment Share on other sites More sharing options...
gravelrash Posted February 4, 2022 Author Share Posted February 4, 2022 6 minutes ago, redtop said: Yes, black jack primer and it seems to work just fine what vcl did u bond to it? Link to comment Share on other sites More sharing options...
redtop Posted February 4, 2022 Share Posted February 4, 2022 3 hours ago, gravelrash said: what vcl did u bond to it? Cant remember lol, it was a heavy duty one and the primer helped it bond. Its classified for use in high humidity areas like swimming pools. So a few hundred quid, but certainly not the sort of sums you are talking about Link to comment Share on other sites More sharing options...
ToughButterCup Posted February 4, 2022 Share Posted February 4, 2022 23 hours ago, gravelrash said: .... FG35 is 5 x price...is it really necessary I asked our roofer at the time: yes was his instant reply (with Alutrix). But then - I subsequently found out - he only ever used FG35. Link to comment Share on other sites More sharing options...
gravelrash Posted February 4, 2022 Author Share Posted February 4, 2022 1 hour ago, redtop said: Cant remember lol, it was a heavy duty one and the primer helped it bond. Its classified for use in high humidity areas like swimming pools. So a few hundred quid, but certainly not the sort of sums you are talking about Dont suppose it was Technoelast VB-500 Link to comment Share on other sites More sharing options...
redtop Posted February 4, 2022 Share Posted February 4, 2022 1 hour ago, gravelrash said: Dont suppose it was Technoelast VB-500 Well if it wasn't it was identical lol. I am sure thats the stuff Link to comment Share on other sites More sharing options...
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