Breathaplasta Smooth is ideal as a healthy skim finish for overcoating existing plaster. It provides a breathable, super-smooth surface finish. Smooth is a high-quality, fine finishing, breathable plaster. It's easy to use and sets within 60-90 mins.

Equipment required

Breathaplasta Smooth
Hawk, trowel and plastering tools

Recommended plaster thickness

Approx. 4mm total thickness.

Coverage per 20kg Smooth bag

Approx. 12 square metres at 3mm thickness

Setting time per coat

Approximately 60-90 minutes.

Surface preparation

Ensure the existing plaster surface is in reasonable condition, is well consolidated and is not crumbling or coming away from the background. Any loose plaster should be removed, and the surface should be in sound condition before overcoating.

If the existing plaster surface is smooth, consider applying a coat of breathable plaster primer to add a key and provide grip for the new plaster.

Mist or brush the existing plaster surface with water to help control suction.

Recommended plaster application

  1. Mix Smooth to approx. 8 litres of clean water per 20kg bag of dry powder used.

  2. Mix the plaster using a paddle mix for approx. 3 minutes.

  3. Base coat of Smooth at 1-2mm.

  4. Top coat of Smooth at 1-2mm.

  5. After the top coat is set, return to the plaster and use a trowel to polish the surface until a super smooth finish is achieved. Do not spray more water onto the plaster and be careful not to overwork it at this stage.

Bag calculator

Use this calculator to work out how many bags of Universal to order for your job.

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