6708 13 l1_125_presentation_1

Level 1 Diploma in Plastering

© 2013 City and Guilds of London Institute. All rights reserved.

PowerPoint

presentation

Materials, tools and equipment recognition

Unit 125: Applying setting coats to wall



Assessment criteria

1.1 describe different types of materials used for applying

setting coats

1.4 identify equipment and tools for applying setting coats

2.2 select equipment, tools and materials to apply setting

coats to wall



Finish coat

• The finish coat is a fine layer of plaster that is

applied to a surface to provide a flat smooth

surface in readiness for decoration.

• Finish plasters do not have the aggregates added

that backing plasters have.

• The finish coat is the final coat applied.

• Its purpose is to provide a clean, smooth surface.



• Finish plasters are usually made from gypsum rock.

• They are classed as ‘type b’ retarded hemihydrate

plasters.

Finish plasters



Multi-Finish

• For use on boards and backing

plasters

• Retarded hemihydrate gypsum

plaster

www.british-gypsum.com/~/media/Files/British-Gypsum/Data-Sheets/PDS-Thistle-Multi-Finish.pdf



Board Finish

• For use on low suction

backgrounds such as

plasterboards and Thistle Dri-

Coat

• Retarded hemihydrate

gypsum plaster

www.british-gypsum.com/~/media/Files/British-Gypsum/Data-Sheets/PDS-Thistle-Board-Finish.pdf



Durafinish

• For use where a stronger

finish is required

• Hallways/corridors/schools

/hospitals

• Higher impact resistant

www.british-gypsum.com/~/media/Files/British-Gypsum/Data-Sheets/PDS-Thistle-Durafinish.pdf



Spray Finish

• Designed to be applied

using a pump machine

• Can also be applied by

hand

www.british-gypsum.com/~/media/Files/British-Gypsum/Data-Sheets/PDS-Thistle-Spray-Finish.pdf



MPFinish

• Spray finish

• Suitable for all lightweight

plaster and plasterboard

backgrounds

• Can also be applied by hand



Board Finish

• For use on plasterboards

• Slightly longer setting

time than BG plasters

• Provides a matt finish



Thin coat angle bead

• Provides a true

external corner

• Nosing allows for

3mm of plaster

www.expamet.co.uk/product/plasterers-accessories/metal-bead-plasterboard/angle-bead



Thin coat stop bead

• Provides a neat stop to

the plaster

• Available in 3mm and

6mm thicknesses

www.expamet.co.uk/product/plasterers-accessories/metal-bead-plasterboard/stop-bead



Tools and equipment

In order to be able to obtain the best result for this coat, it is

essential that the plasterer has the correct tools:

• finishing trowel

• hawk/hand board

• gauging trowel

• bucket towel

• water brush

• spot board and stand

• mixer

• buckets

• twitcher/angle trowel.



Tools and equipment

• It is extremely important that all tools and equipment

used in skimming are clean

• Any little bit of contamination to equipment or tools

can have an effect on the application or finished job

www.expamet.co.uk/product/plasterers-accessories/metal-bead-plasterboard/angle-bead



Trowel

• The main tool used is a stainless steel ‘skimming’

trowel

• This can be bought pre-worn or it can be worn in

through use

www.youtube.com/watch?v=HnoKVFvfXoE



Parts of a trowel

• Toe

• Heel

• Tang

• Handle

• Rivets

• Blade



Any questions?

6708 13 l1_125_presentation_1

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