Fitting a Kitchen Sink

Discussion in 'Kitchen Fitters' Talk' started by Stevewils, Dec 7, 2007.

  1. Stevewils

    Stevewils New Member

    Hi All,

    Can anyone tell me what type of sealant should be placed between the sink and the work surface?
    Is there a special rubber mat, or can I just use standard kitchen and bathroom sealant?

  2. andy.sp

    andy.sp New Member


    If you buy a decent quality sink (e.g. blanco) it will have a pre-formed rubber strip on the underside so no need to use a sealant.
  3. kitcheneer

    kitcheneer New Member

    Blanco is the only make that I know of (Franke certainly don't) that have the built in gasket, which of course, is the reason I only use Blanco sinks
    Most of the others provide a ridiculous self adhesive foam plastic strip which wouldn't even be a worthwhile draught excluder (because it's porous) or strips of some kind of putty, but I wouldn't bother with these because there isn't usually a flat flange on the sink that you can stick them to.
    Solution, either use Blanco or get the silicone gun out
  4. Jonny Round Boy

    Jonny Round Boy New Member

    Just fitted a Franke sink this morning - a Beach inset (BBX651) and that did have a built-in, moulded rubber seal.

    So there. ;)
  5. andy.sp

    andy.sp New Member


    I'm not a kitchen fitter but have a blanco sink (hence my reply) I assumed (wrongly as you've pointed out) that all decent sinks would have this feature.

    I was umming and arring between franke and blanco. From what you've said I made the right choice. So you rate blanco do you and think they're worth the extra £?
  6. samuelsdad

    samuelsdad New Member

    Blanco every time mate. But if it's cheap and cheerful you're after try astracast. Franke are a cut above them, and blanco another step up i'd say. Shop around though. Just gotta blancomedian sink and tap pack (that they say is £309 trade price) for £190 from a place in archway.

    Personally, unless that sealing strip is fitted to the sink, I always use clear silicone.
  7. Fat Bald Martin

    Fat Bald Martin New Member

    Personally I never use the stick-on gaskets, I just don't trust them. I always use Dow Corning Translucent Silicone, use plenty and clean off the "squidge" with a 5mm 45 deg Fugenboy, the resultant seal is neat and very water resistant.

    Even with a good seal sink to worktop I never think it is worth skipping sealing the the cut edge of the sink cutout in the worktop, it only takes 5 minutes and might save a replacement worktop if it does get wet!

    Cheers Martin
  8. Joelp1

    Joelp1 New Member

    my fav sink at the min is the rangemaster ones, anyone fitted these? They have the sealing strip and also nice recessed design so they dont tend to dump much water over the edge. I only ever seal the cut out, not the sink.
  9. petr

    petr New Member

    Yes, my Franke sink has a rubber gasket but they also included some grey putty like strips and in the instructions the show someone using a silicone guno_O. Am I supposed to use the strips in addition to the gasket? Perhaps you need to to put the stips on the rough inside edge of the worktop (in the hole the sink sits)
  10. ajohn

    ajohn Active Member

    I've fitted an inset stainless sink recently. I used an acetic silicone rubber to seal it. These are the ones that smell a bit as they are going off, some more than others. I wouldn't use an ordinary silicone sealant. I used the same to seal the tap.

    It can be easy to remove excess. After it's well pressed down spray with ordinary window cleaner and it can be wiped off with tissues etc or fingers. The window cleaner spray stops it sticking but watch you don't leave a very thin film on the work surface. Careful use of a scraper is probably best if in doubt.


  11. kitfit1

    kitfit1 Well-Known Member

    Assuming everyone is talking about SS sinks here ? Both Blanco and Franke sell SS sinks with built in rubber seals. It depends a lot on the sink though if you actually get that seal. For a long time now we have been fitting Blanco sinks that have no seal at all. What they do have though is a very wide flat flange that is about 1.5mm thick. Perfect for just a bead of silicon around the cutout, drop the the sink in, a 110v tansformer in the main bowl and another on the end of the drainer. Clean the squidge with a bit of worktop edging and clean with some "Big Wipes". A few hours to let the silicon to go off and the jobby is jobbed. No need to even bother with the sink clips, always a Brucie bonus :D
    CGN likes this.
  12. CGN

    CGN Well-Known Member

    Forget big wipes mate. These from TS.

    Better on the pocket :D
    kitfit1 likes this.
  13. kitfit1

    kitfit1 Well-Known Member

  14. CGN

    CGN Well-Known Member

    Oh, you mean wonder wipes :D
  15. ajohn

    ajohn Active Member

    ;) You can clean the windows with what I suggested. Also recess silicone grout tiles to worktop to match the real stuff with a tissue again. Keeps fingers clean too.

  16. barbaricduck

    barbaricduck Member

    I wouldn't trust the built in gaskets on any sink over a long period of time. Plenty of clear silicone and plenty of wipes to get the excess off is the longer term solution
    The gasket might sit nicely but if the initial cut out isn't spot on then there will likely be weak points (for want of a better phrase).
  17. barbaricduck

    barbaricduck Member

    Lazy Sod!!

    Tightening up sink clips is the best part of the job!!
    One nice thing about Franke is the self grabbing clips. As you say, a bit of weight and silicone and job done.
  18. chippie244

    chippie244 Well-Known Member

    Try explaining what you did again using words in the correct order and with photos :)
  19. DIYDave.

    DIYDave. Well-Known Member

    Just had a quick count up for you whilst I was doing a No.2 (multi tasking you see) and after thoroughly checking all known sink manufacturers in this universe, I’ve come up with the figure of 21,875 types of kitchen sink

    I may have got the number slightly wrong as bog paper not the best for scribbling long mathematical sequences on so couldn’t read some of my figures

    As to which is best...... well, they all work, some are better constructed than others, (heavier grade stainless steel for instance) but the style depends on the overall design of the kitchen - hope that’s helpful

    But seriously .......
    what kinda question is that mate ?

    Try to be a little more concise with your question as ‘how longs a piece of string’ comes to mind

    Anyway, I’m done, must crack on, have a good day yourself :)
  20. chippie244

    chippie244 Well-Known Member

    Is this hoaxers corner now?

Share This Page