INT/Plastering/TBT-INT-007

Wet Plastering Safety

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Wet Plastering Safety

Toolbox Talk Record

Ref: TBT-INT-007  |  Issue: 1  |  Date: March 2026
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What?

  • Wet plastering involves applying gypsum, cement, or lime-based plasters to walls and ceilings by hand or machine.
  • The work requires sustained overhead effort that causes shoulder, neck, and arm musculoskeletal disorders.
  • Plaster dust from mixing and sanding is a respiratory irritant that requires dust control measures.
  • Cement-based renders and plasters are alkaline and cause skin burns and dermatitis on contact.
  • Manual handling of 25 kg plaster bags is repetitive and a major cause of back injuries for plasterers.
  • Working from trestle platforms and hop-ups at height creates fall risks in every room.
  • Machine plastering reduces physical effort but introduces electrical hazards and hose management issues.
  • COSHH 2002 applies to cement and lime-based plasters that cause skin irritation and burns.
  • The Manual Handling Operations Regulations 1992 require assessment of bag handling and mixing tasks.
  • Sanding dried plaster generates fine dust requiring extraction or RPE with a minimum APF of 10.

Why?

Musculoskeletal injurySustained overhead plastering is one of the most physically demanding construction tasks.
Skin burnsCement and lime plasters are highly alkaline and burn skin on prolonged contact.
Dust inhalationPlaster dust from mixing and sanding irritates lungs and causes respiratory disease.
Fall riskWorking from trestles and hop-ups in every room creates constant low-level fall hazards.
Do Don't
  • Wear waterproof gloves when handling cement or lime-based plasters.
  • Use a stable working platform — not a single plank across trestles.
  • Rotate between tasks to reduce sustained overhead work and prevent fatigue.
  • Wear RPE when mixing dry plaster or sanding finished surfaces.
  • Use correct manual handling technique when lifting 25 kg plaster bags.
  • Keep the work area clean and free of plaster droppings to prevent slips.
  • Use a plaster mixing station to reduce dust during the mixing process.
  • Wash hands and forearms thoroughly before eating, drinking, or smoking.
  • Report any skin irritation, shoulder pain, or breathing difficulty promptly.
  • Use machine plastering to reduce the physical demands where possible.
  • DON'T handle cement or lime plasters with bare hands — chemical burns develop slowly.
  • DON'T work overhead for extended periods without regular breaks and task rotation.
  • DON'T stand on makeshift platforms or unstable trestles to gain extra height.
  • DON'T mix plaster in enclosed areas without dust extraction or ventilation.
  • DON'T sand dried plaster without RPE and dust control measures in place.
  • DON'T lift multiple bags of plaster at once to save trips.
  • DON'T leave plaster droppings and debris on the floor — they create slip hazards.
  • DON'T ignore skin cracking or redness — report dermatitis symptoms early.
  • DON'T use damaged or makeshift hop-ups and trestle platforms.
  • DON'T rush mixing — dry plaster powder thrown into water creates heavy dust clouds.

See also: Drylining Safety Awareness | Dermatitis Prevention
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