JB Lime Finishing Plaster
- Designed by a plasterer to do the job.
- High content lime
- fibre reinforced
- ready mixed
- more impact resistant than ordinary fine stuff
- simply apply and trowel smooth
- can’t be over polished by over trowelling
- a great renovating plaster for skimming problem walls
Buy from John Byrne, jblimeplastering. email or phone:
- Is designed to be used as the final coat in lime plastering.
- It can be used on a number of other substrates.
- Some substrates such as plasterboard or painted surfaces are best primed with a suitable primer such as Baumit DG27.
- Contains Calcium Hydroxide follow the usual precautions for handling and using lime.
- Other ingredients include manufactured fibres and stone granules.
- Currently supplied in 20 litre plastic tubs containing 15 litres of plaster.
- When opening the tubs some water may be sitting on the surface this can be decanted off and the plaster knocked up with a plaster whisk, the decanted water can be re-added to adjust the consistency.
The floating coat should be brought to the correct levels with all corners and edges tidy and complete. The texture should be open as achieved with 2mm coarse stuff floated with a plastic or wooden float, it can be lightly devil floated.
The float coat should be left to harden so that it does not compress under the finger but not allowed to dry out.
Apply the finishing plaster as a coating about 2mm thick, leave it level but don’t trowel too much
Allow to pull in so that it is firm to the touch
Apply another coat of finishing plaster about 2mm thick and trowel as flat and level as possible, allow this to firm up so that it is firm to the touch and then compress and smooth off with the steel trowel. A small rigid trowel is best for this.
As the plaster dries it will develop a slight soft texture not unlike watercolour paper. You might be surprised by how much the plaster can still be smoothed off even when it looks too dry, just dampen the surface with some water.
I strongly recommend Japanese plastering trowels as I think they are the best trowels for lime work.
You can view and buy them through this link.
This is my most used trowel – a premier honyaki finishing trowel 210mm long it’s pretty rigid and I use it both for applying and smoothing my finishing plaster. They are beautifully made and a joy to use.