Hi hope you can advise I have installed a shower over the bath and have the two channels that the pipes sit in open. I want to start tiling in the morning so can I tile over these with the tiles 25 x 33 set so the channel is central or do I need to plaster them up. I have heard I will have to wait 4 weeks if I plaster up.
Thanks
Mike

what about using a flexible rapid set to plaster the channels with?

altho' I'd cover the pipes with duct tape too

Didn't know you could do Doug that was just going to suggest overboarding I live and learn

better covering them i'd say,tape as doug but i'v filled with rapid before too

Originally Posted by MRW

Didn't know you could do Doug that was just going to suggest overboarding I live and learn

overboarding would be preferable MRW, just don't know if he has room down the back of the taps to overboard and then tile

If the holes arny to wide or deep, just fill them in with a rapid setting tile adehsive a couple of hours before you tile. If they are a bit wide or deep for that Id mix up some sand and cement and fill them in. Either way be sure not to mix it up to thin or it will sag and youl end up with a lump in the wall to deal with.

Thanks for the quick replys will get some flexible rapid set in the morning, and duct tape
One thing just came to mind how easy does therapid set stick to the duct tape and is bal okay to use can get that easily
Thanks
Mike

Bals fine and the addy will key into the sides of your channel so you won't have any probs

what are your cannel chased into? I'm assuming masonry, if thats the case it'll be fine. The duct tape is to stop any corrosive reaction between the adhesive and the copper pipe. Bal is v. expensive, mapei kerauick is cheaper and just as good

Yes channeled into masonary the expense is cheap now I know I don't have to wait weeks for plaster to set.

Thanks for all the replys

Mike

you're welcome, man/woman with no name

Originally Posted by doug boardley

you're welcome, man/woman with no name

you sure...lol lol lol..

Thanks for all the replys

Mike

Originally Posted by Unregistered

Yes channeled into masonary the expense is cheap now I know I don't have to wait weeks for plaster to set.

Thanks for all the replys

Mike

sorrry Michaela

cheaper option is bonding with a handfull of cement dust thrown in, just be quick!

Originally Posted by marc1106

cheaper option is bonding with a handfull of cement dust thrown in, just be quick!

mixing cement an gypsum?

Originally Posted by doug boardley

mixing cement an gypsum?

Doug its great for filling chasings, nothing more and you only need a tiny amount and it does set it livley then you can set somthing overtop same day, im not condoning bonding entire walls like that!

Marc..do you know what happens when you mix gypsum and cement together ( apart from setting quick)..?

this where you tell me im bomb making?

Ettringite....

right im no chemist, and as iv said before many time no master tiler, but ettringite is the crystal thingy that stops concrete from flash setting or whatever they call it, so wheres the probs Dave?

Portland cement reacts with the gypsum...causing Etrringite failure...that is why you use acrylic primer when tiling onto gypsum walls with cement based adehsives...

So by mixing portland cement neat with gypsum bonding then the chance of a reaction is very high...

Ok ya!!..

Doug is right - you MUST wrap any copper pipes with tape to prevent corrosion, i also pin the pipes to the back of the channel with large P clips that are sold for clipping back pipes (stops them rattling with expansion etc.) i also scrim over the top then use hardwall (dead cheap and makes a good solid finish), before i addy then tile. No need to wait ref the hardwall, it goes off super fast and then you can tile.

Originally Posted by marc1106

Doug its great for filling chasings, nothing more and you only need a tiny amount and it does set it livley then you can set somthing overtop same day, im not condoning bonding entire walls like that!

Dave i wasnt aware of that so thanks for the info but even with wall chases i multifinish over them as i said in my reply to Doug. thats what you get listening to plasterers

interesting posts was taut years ago at tech to add small amount of plaster powder to a small (hawk full) of mixed render to fill deep patches of render repair work (only to be done internal work) but ive never tried mixing cement powder to plaster /// to make plaster set quickly add table salt to a small portion and mix

Originally Posted by jay

interesting posts was taut years ago at tech to add small amount of plaster powder to a small (hawk full) of mixed render to fill deep patches of render repair work (only to be done internal work) but ive never tried mixing cement powder to plaster /// to make plaster set quickly add table salt to a small portion and mix

well i never! will the salt off my walkers be enough?, dont usually keep saxa on the van!

Originally Posted by marc1106

Dave i wasnt aware of that so thanks for the info but even with wall chases i multifinish over them as i said in my reply to Doug. thats what you get listening to plasterers

lol, I served my time as a plasterer

Originally Posted by doug boardley

lol, I served my time as a plasterer

Originally Posted by doug boardley
lol, I served my time as a plasterer


snap doug

You boys ever pee'd in your plaster? when I was a lad they use to do it all the time to slow it down, haven't 'seen' anybody do it for years though, i'm not sure it ever worked