Low suction plasterboard ceiling lime skim

Woods

Active Member
I'm trying to lime skim a low suction plasterboard ceiling. There's a few problems I'm having:

1. scrim tape doesn't stick to the boards
2. low suction, difficult bond between plasterboard and lime plaster
3. due to low suction, difficult to flatten: plaster is easily dragged off the ceiling; it does help to wait a couple hours to let it pull in, but it also gets progressively more difficult to flatten because the plaster gets firm. Floating and scouring in possible to a degree but not too much or the plaster gets dragged off again

I think I need some kind of bonding agent, but I have no idea as to what. I do have time, so I can run multiple tests until a satisfactory method has been obtained.

Thanks for the help!
 
Don't use lime plaster on the ceiling boards, just use multi or board finish.
If the boards are old and dusty PVA them first let it dry then scrim the joints.
You could also staple the scrim on or plaster the joints then embed the scrim in like old school jute scrim.
 
NO LIME ON PLASTERBOARD.
There are some very advanced materials available in Belgium. Go to your builders merchant and purchase Gips red brand plaster or better still Tarmac self finishing plaster this plaster is pre mixed and sets on contact with air.
 
I'm trying to lime skim a low suction plasterboard ceiling. There's a few problems I'm having:

1. scrim tape doesn't stick to the boards
2. low suction, difficult bond between plasterboard and lime plaster
3. due to low suction, difficult to flatten: plaster is easily dragged off the ceiling; it does help to wait a couple hours to let it pull in, but it also gets progressively more difficult to flatten because the plaster gets firm. Floating and scouring in possible to a degree but not too much or the plaster gets dragged off again

I think I need some kind of bonding agent, but I have no idea as to what. I do have time, so I can run multiple tests until a satisfactory method has been obtained.

Thanks for the help!




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