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Painting external boiler flue

  • 15-11-2020 1:27am
    #1
    Fine Cheers
    Registered Users, Registered Users 2 Posts: 556 ✭✭✭


    Just got external balance flue re-routed with new white plastic coated piping and want to paint black or dark grey. Has anyone done this or can recommend a paint spec ?


Comments

  • #2
    listermint
    Registered Users, Registered Users 2 Posts: 34,111 ✭✭✭✭listermint


    DIY KING wrote: »
    Just got external balance flue re-routed with new white plastic coated piping and want to paint black or dark grey. Has anyone done this or can recommend a paint spec ?

    Any high temp paint will do. There are various BBQ paints that will also do the job spray or in can. Blacks a good choice.


  • #3
    Fine Cheers
    Registered Users, Registered Users 2 Posts: 556 ✭✭✭Fine Cheers


    Thanks for that. Bit worried about adhesion to plastic, any need to prime or might roughen up a bit with light sandpaper ?


  • #4
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,840 ✭✭✭✭Dtp1979


    DIY KING wrote: »
    Thanks for that. Bit worried about adhesion to plastic, any need to prime or might roughen up a bit with light sandpaper ?

    Only the manufacturer will answer this for you. You prob don’t need high temp either if it’s a condensing boiler.


  • #5
    Johnthemanager
    Registered Users, Registered Users 2 Posts: 250 ✭✭Johnthemanager


    DIY KING wrote: »
    Thanks for that. Bit worried about adhesion to plastic, any need to prime or might roughen up a bit with light sandpaper ?

    Does it get hot?


  • #6
    Fine Cheers
    Registered Users, Registered Users 2 Posts: 556 ✭✭✭Fine Cheers


    No, doesn't get hot. Balance flue concentric pipe so outer chamber sucks cold air in and central chamber blows fumes out. Will get warm I guess at outlet grill though I'd say.


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  • #7
    Johnthemanager
    Registered Users, Registered Users 2 Posts: 250 ✭✭Johnthemanager


    DIY KING wrote: »
    No, doesn't get hot. Balance flue concentric pipe so outer chamber sucks cold air in and central chamber blows fumes out. Will get warm I guess at outlet grill though I'd say.

    An adhesion primer like Zinsser 123 would probably be safer, and the 2 coats of gloss.


  • #8
    Dtp1979
    Registered Users, Registered Users 2 Posts: 12,840 ✭✭✭✭Dtp1979


    DIY KING wrote: »
    No, doesn't get hot. Balance flue concentric pipe so outer chamber sucks cold air in and central chamber blows fumes out. Will get warm I guess at outlet grill though I'd say.

    Plastic balanced flue?


  • #9
    Fine Cheers
    Registered Users, Registered Users 2 Posts: 556 ✭✭✭Fine Cheers


    Plastic coated steel I'd say or maybe just a paint coating.


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