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Fibrous works materials, selecting, handling and mixing

We have doubled the grant rates for short course tiers 1 – 3. To address rising costs, you can now receive higher rates on course achievements from 1st April 2023

Grant Tier

Achievement date before 1 April 2023

Achievement date on or after 1 April 2023

Grant Tier 1

Grant Tier 1 Refresher





Grant Tier 2

Grant Tier 2 Refresher





Grant Tier 3

Grant Tier 3 Refresher






The purpose of this standard is to provide the delegate with the knowledge to support the use and application of the underpinning historical, technological and theoretical knowledge and requisite practical skills to undertake the correct evaluation relevant to selecting, handling and mixing fibrous plaster materials.


Minimum 3 days of 6 learning hours per day


The purpose of this standard is to provide the delegate with the knowledge to support the use and application of the underpinning historical, technological and theoretical knowledge and requisite practical skills to undertake the correct evaluation relevant to selecting, handling and mixing fibrous plaster materials.


  • lift and handle plastering
  • identify and store plaster materials
  • Control of Substances Hazardous to Health (COSHH) regulations
  • personal protective equipment (PPE)
  • construct and use a banker board
  • mixing material by mechanical methods and traditional hand methods
  • the importance of a clean water supply
  • the purpose of a specification
  • the sustainability and types of materials
  • casting plasters
  • timber lathing
  • types of reinforcing
  • specifications
  • cold pour materials
  • gauging and mixing
  • shellac sealer
  • plaster retardants
  • releasing grease
  • profile making
  • running moulds, rules and forming backgrounds
  • pouring rubber moulds
  • carrying out instructions
  • mixing containers
  • barrier cream
  • manufacturer’s instructions

Occupational relevance

Training delivered against this standard would be relevant to the following occupational groups:

  • operative and craft
  • supervision
  • management and leadership

Delegate pre-requisites

There are no delegate pre-requisites as part of this standard.

Instruction/ supervision

As a minimum, course trainers must be able to demonstrate that, in relation to this standard, they have:

  • an award in education and training (or equivalent, as per requirements for approved training organisations)
  • successfully completed training to this standard
  • at least 5 years relevant industrial experience
  • a verifiable CV


Delivery may be in an on or off the job environment.

All materials and equipment must be of a suitable quality and quantity for delegates to achieve learning outcomes and must comply with relevant legislation.

The class size and delegate/trainer ratio must allow training to be delivered in a safe manner and enable delegates to achieve the learning outcomes.

The following delivery methods may be used in the delivery of this standard:

  • classroom
  • a blend of classroom and remote
  • remote

This standard is considered to contain 51% or more theoretical training.

This standard is considered to be set at an advanced level.


For the successful completion of training, delegates must complete an end of course practical assessment or knowledge test that measures all learning outcomes and has a pass or fail criteria.

Where this training is assessed using multiple-choice questions, a minimum of 10 questions must be asked and delegates are required to achieve an overall pass mark of at least 80%.

Quality assurance


Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard.

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the training standard.

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk-based analysis. They will also be visited annually by the CITB quality assurance team.


There are no mandatory renewal or recommended refresher requirements for this standard.



Please note standards using this classification will only be grant aided once per delegate

Approval date

February 2022

Review cycle

On request or 3 years from approval date.

Learning outcomes

Learning outcomes
The delegate will be able to: Additional guidance to support learning outcome:

explain how to unload materials safely


explain how to store bulk and bagged materials


briefly explain the COSHH regulations


briefly explain the PPE regulations


describe how to select and gauge materials


describe how to gauge materials to given specification


describe how to match correct mix/material to type of background


describe materials from given specification and check their suitability


explain how to mix materials to the correct workable consistency


describe various grades of casting plaster

to include, but not limited to:

  • standard casting

  • fine casting

  • keramicast

  • fine casting (plus)

  • tecknicast

  • superfine casting

  • helix

  • herculite No2

  • crystacal R.S

  • crystacal Lamina

  • crystacal R

  • herculite stone

  • crysta-cast

  • crystal Alpha

  • lafarge list

explain how to select correct timber lathing with regard to size and type


explain how to select and prepare type of reinforcing for use


explain how to carry out instructions from the specification


describe the different types and uses of cold pour materials


explain how to gauge and mix casting plaster to the correct workable consistency and quantity required


describe shellac sealer and its uses


describe plaster retardants for running and casting

to include:

  • glue size

  • keratin

  • sodium citrate crystals

explain how to prepare casting models with releasing grease


explain how to select the correct gauge of zinc used for profile making


explain how to select timber for running moulds, rules and forming backgrounds


explain how to use of clay when using for moulds of stopping back cases when pouring rubber moulds


explain how to remove paint from samples of existing mouldings and enrichments


explain how to carry out instructions from drawings, details and specifications


describe how to select type and size of reinforcing for use in casting; this is dependent on the size and styles of moulds used

to include:

  • timber laths

  • glass fibre matting

  • jute scrim

  • glass fibre strands

  • bandage scrim

  • wire

  • metal

explain the purpose of soaking laths prior to use


describe how to prepare mixing containers


explain the protection of hands by barrier cream


describe a mix of lime putty, casting plaster and fine sand as original mix


explain the importance of mixing plaster in the correct sequence and quantity


explain manufacturer’s instructions cold pour moulding compounds