Home |
Search |
Today's Posts |
|
UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Plaster Skim Tips
I have been practicing skimming onto some scrap pieces of plaster
board which I have taped together and temporarily fixed to a wall. I'm using Thistle Multi-Finish and was hoping for a few tips. 1) One coat or two ? From other postings in this group it would seem that you should apply two coats in fairly quick succession. This will increase the time it takes to dry out and give you more working time. 2) How long to wait between applying the second coat and starting to polish ? Does this just come down to experience ? I probably waited about 1/2 hour. 3) When you are polishing should you be using the trowel flat against the wall or at an angle ? 4) During the polishing I seem to keep ending up with a small amount of sludge on the trowel which constantly needs to be cleaned off. Is this normal ? I am keeping the trowel wet and using an old paint brush to dampen the plaster on the wall before polishing ? 5) Does the plaster change colour once it's polished ? Seemed to turn a bit darker after a few passes of the trowel. Any help is much appreciated. The ultimate aim of this "practice" is to skim a plasterboarded ceiling. Is this much more difficult than working on walls ? |
#2
|
|||
|
|||
Plaster Skim Tips
Best tip is to use Gypsum Easy-Fill for the final coat. About five times
more expensive in B&Q (£10/10kg) but a hundred times easier to get a good result. Also it is a lot stickier so you plaster the ceiling, not yourself. "Andy Hide" wrote in message m... I have been practicing skimming onto some scrap pieces of plaster board which I have taped together and temporarily fixed to a wall. I'm using Thistle Multi-Finish and was hoping for a few tips. 1) One coat or two ? From other postings in this group it would seem that you should apply two coats in fairly quick succession. This will increase the time it takes to dry out and give you more working time. 2) How long to wait between applying the second coat and starting to polish ? Does this just come down to experience ? I probably waited about 1/2 hour. 3) When you are polishing should you be using the trowel flat against the wall or at an angle ? 4) During the polishing I seem to keep ending up with a small amount of sludge on the trowel which constantly needs to be cleaned off. Is this normal ? I am keeping the trowel wet and using an old paint brush to dampen the plaster on the wall before polishing ? 5) Does the plaster change colour once it's polished ? Seemed to turn a bit darker after a few passes of the trowel. Any help is much appreciated. The ultimate aim of this "practice" is to skim a plasterboarded ceiling. Is this much more difficult than working on walls ? |
#3
|
|||
|
|||
Plaster Skim Tips
|
#4
|
|||
|
|||
Plaster Skim Tips
Many thanks for the useful advice. My practice session proved most
successful and I was pleased with the results. However, things have gone downhill since then. I had another go last night and something has gone very wrong. As I spread the plaster across the board I am getting scratch marks. It appears that the plaster has gone gritty and the small pieces of grit are leaving scratch marks as I move the float across the board. I've concluded this could be because: 1) Plaster not mixed properly. I tried adding more water but this did not seem to help. I threw out one mix and started again. Same problem. Bucket was fully washed out between mixes. 2) Plaster has gone off. The bag of plaster was left open inside the house without being covered up. Would it go off in a day ? The house is not damp. I am determined to master this! |
#5
|
|||
|
|||
Plaster Skim Tips
|
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Which plaster to use? | UK diy | |||
removing paint from plaster | UK diy | |||
Advice on smoothing plaster wall | UK diy | |||
Old Plaster | UK diy |