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steveo3002
Original Poster
2,319 posts
43 months
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got some plaster coving here to install
what sort of adhesive do i need , the ones in the diy werent marked to well and i didnt want to come away with the stuff for polystyrene and have it all fall down
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Busa mav
928 posts
23 months
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A bag of artex will do the job.
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TheD
2,483 posts
68 months
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A lot of the guys use tiling adhesive. Many just use plaster and then needle nails to support the coving
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herbialfa
1,070 posts
71 months
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Tiling adhesive!
But remember glue & screw!!!!
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don'tbesilly
365 posts
32 months
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Busa mav said: A bag of artex will do the job. +1
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stuartmmcfc
1,111 posts
61 months
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I earnt my living doing this for 25 years.
We'd use watered down unibond on the wall and on the "strike-off" on the back of the cornice and then use casting plaster to stick it up with. The unibond was to kill the suction and you'd have to time the plaster going off just right to stick it up with. You'd then use the plaster to make good joints/mitres and do the "running stopping"
Easy when you had the experience.
Having said that, a bag of artex (or even tile adhesive) and a few tacks to support it would do an 'amateur" just fine,
One tip I'd make is to use a chalk line to mark the depth of it and then a few tacks nailed on it would help you "sit" the cornice in the right place.
Oh, and we never bothered to much about cutting a mitre "just right" as few corners are 90 degrees and making them good was all part of the fun plus we used to put a few strands of hessian dipped in casting plaster in the joints to stop them cracking as they dried out..
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Spudler
2,193 posts
65 months
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Lafarge multi purpose adhesive, exactly the same as their coving
adhesive but a lot cheaper.
No need to pin/tack.
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herbialfa
1,070 posts
71 months
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stuartmmcfc
1,111 posts
61 months
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wads!!!
There's a word i used a LOT but haven't said it for 10 years now!!
Brian- anything to do with Stevensons?
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GG89
1,467 posts
55 months
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Cove adhesive. B&Q sell it, Green and white bag.
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herbialfa
1,070 posts
71 months
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How the feck do you know that????
Directed at Stuart!!!
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stuartmmcfc
1,111 posts
61 months
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enn and herbialfa said: How the feck do you know that???? well- you live in Norfolk and there's not much there in my memory apart from Stevensons in the Fibrous plastering world  I went there once and I've got to admit their unit was a very impressive place and the quality was A1. I used to work for a mickey mouse outfit in the midlands who used to have ideas way above their limit! Used to do a lot of sub work for Clark & Fenn and Jacksons down in London at one time. Got to be honest though- I'm glad I'm out of it now
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herbialfa
1,070 posts
71 months
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Yeah I worked there! I did all the design/ construction/ detail drawings for them!
Do you know Keith Langton?
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Kneetrembler
1,557 posts
71 months
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Our guys who do nothing but dry lining and coving use "Gyproc Easy Fill" which is made specifically for that application and jointing boards,which is the same thing.
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stuartmmcfc
1,111 posts
61 months
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Brian- TBH we had very little to do with Stevensons (apart from losing Contracts to them ), Keiths name rings a bell, I googled him and he was at Merry Hills shopping centre in the late 80s and i've got a feeling thats where i might have first come across him. Long time ago now- I'll speak to my old boss later and see if he knows him. OP- sorry to have turned a bit of your thread into "ornamental Plasterers reunited". but there seems to be plenty of good advice so far- but i really would support any plaster coving on some nails/pins etc until its secure until you're competent at it.
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Simpo Two
54,231 posts
134 months
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I fitted plaster coving once and used cove adhesive - and depsite being fairly competent at DIY found it difficult. The coving sucked the moisture out of the adhesive and the 'buttered' length of coving was very heavy - as a result I had to use some supporting pins as well. Sections over the stairs had to be screwed in place with triangular blocks behind.
The next time I used paper-covered foam coving, which weighs nothing, and stuck it in place with No-more-nails-type stuff. It looks just like the real thing and is a doddle to put up - a 'no-brainer' IMHO.
I have no idea why people use plaster coving now.
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GG89
1,467 posts
55 months
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The lightweight stuff you refer to is 'supercove' excellent stuff.
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stuartmmcfc
1,111 posts
61 months
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Don't wind me up with " the polysterene stuff is as good as plaster cornice"
Perhaps if you aren't that fussy but try telling that to people like "The National Trust'.
It looks rubbish (IMHO) but if tats your taste who am i to say different!
ps- if the coving sucks the moisture out of the adhesive thats what the watered down unibond is for.
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dazwalsh
136 posts
10 months
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i put up some in my bedroom and i used some super light plastic stuff, bit like hardened ploystyrene, decorators caulk was my method of adhesive and then pinned in place whilst it dried, nice and easy.
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Simpo Two
54,231 posts
134 months
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stuartmmcfc said: Don't wind me up with " the polysterene stuff is as good as plaster cornice"
Perhaps if you aren't that fussy but try telling that to people like "The National Trust'.
It looks rubbish (IMHO) but if tats your taste who am i to say different! Joe Bloggs coving his house, and English Heritage renovating an NT property are two rather different things. I wasn't referring to the polystyrene stuff, on which you can see the little circles, but paper covered foam. Plaster cove is covered with paper as well. Paper looks the same whether on top of plaster of foam 
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