Plastering in a conservatory (threads merged)

JohnD · 2 Sep 2020

bennymultifinish said:
not come across a stainless SKIM bead. render bead yes.

Oh, he only needs a skim?

dontbelieveawordofit · 2 Sep 2020

johnscts said:
Many thanks Benny - so that is a definite - I will have to return the Undercoat plaster, Now do I just use that and then a finishing plaster. Why not bonding - I had a plasterer in may years ago doing an indoor chimney breast and he used a bonding 1st coat then as it went off he used a finishing plaster. Also can you advice do I need anything (as this is inside a conservatory ) do I need a watered down PVA Prior to starting. I do appreciate your help and hope the pics help (hope you did not have to stand on your head to view them) ps at this rate I might have to return all.

dri coat is cement based and has salt inhibitors (i can see salts on your wall) .
brush the wall down and mist spray it to control some of the suction . theres no need for pva . build it up as you go.
bonding coat is not for areas where theres any chance of any moisture ,the salts in and on your wall will pull moisture in from the atmosphere .

dontbelieveawordofit · 2 Sep 2020

JohnD said:
Oh, he only needs a skim?

i’d use a batten to create the corner with dri coat . stainless angles are too dear for me.
but he can use a stainless render bead if it helps.

johnscts · 2 Sep 2020

Thanks no there isn’t a stainless steel as far as I know. So with replacing the beaning; what do u recommend to finish the job - you did not mention any PVA; so I have the metal beading now do I use what bonding material to get it to stick and then what plaster do I finish with? This is a relatively small area. Regarding the other job where I have got down to the brickwork what are the ingredients PVA (definitely not ? )

dontbelieveawordofit · 2 Sep 2020

you will only need normal pva if skimming finishing plaster over existing plaster.
fill the deep sections out with sand/cement or dri coat then pva that and stick your bead on ,then finishing plaster.

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Plastering in a conservatory (threads merged)

JohnD

dontbelieveawordofit

dontbelieveawordofit

johnscts

dontbelieveawordofit

DIYnot Local

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