Gyprock® Cornice Cement

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  • Green Star Applicable
    Green Star is Australia's trusted mark of quality for the design, construction and operation of sustainable buildings, fitouts and communities. Choosing Green Star can help you save money, create a healthy place for people, minimise your environmental footprint and build a better future for us all.
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    The WELL Building Standard is grounded in evidence-based medical research that demonstrates the connection between buildings and health and wellness impacts on us as occupants. WELL can be applied across many different project types and building sectors.
  • Isca Applicable
    ISCA's IS Rating Scheme (IS) is Australia and New Zealand's only comprehensive rating system for evaluating sustainability across the planning, design, construction and operational phases of infrastructure programs, projects, networks and assets. IS evaluates the sustainability performance of the quadruple bottom line (Governance, Economic, Environmental and Social) of infrastructure development.
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Gyprock Cornice Cement is used for installing Gyprock cornice at wall and ceiling junctions where the walls and ceilings are lined with plasterboard. It is also used for finishing cornice joints and mitres and small cornice repairs. This is a fast setting cement with a working life of 50 - 60 minutes after mixed with water. It has very good initial grab and high bond strength after setting making DIY installation easy. Gyprock Cornice Cement is a low VOC dry powder compound manufactured by Gyprock in Australia to stringent product specifications.

Product Options

Gyprock Cornice Cement is available in the Gyprock DIY range in a 2.5kg bag. The Gyprock Professional range offers Cornice Cement 60 and Cornice Cement 45 in 10 and 20kg bags.



Add 2kg of Gyprock Cornice Cement to 1.1 litres of clean water and mix to a creamy consistency. Do not mix more material than can be used in 50-60 minutes.
  • Measure and cut cornice sections to exact length using a saw and mitre box or Gyprock Mitremasta™.
  • Apply generous beads (approx. 10mm) of Cornice Cement to the back of the cornice along both edges and to mitres.
  • Each section should be buttered and fixed separately, starting with shorter lengths.
  • Hold sections in place with temporary nails or screws.
  • Remove surplus Cornice Cement and clean down with a brush or sponge.
  • Smooth off mitres and fill any gaps with Cornice Cement.
  • Allow to set for at least 2 hours before removing temporary fixings and sanding joints.

Finding the right CSR Gyprock product for your needs

CSR Gyprock has a huge range of plasterboard products that meet all the criteria of GECA’s Panel Boards standard. This means there’s an environmentally-preferable plasterboard product for almost any application - find out which one is best for you with our handy guide!

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