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Gyprock Less Mess™  Topping Compound

Technical Specifications Installation Instructions

Gyprock Less Mess Topping Compound is a semi lightweight topping compound used as a top coat in a three coat plasterboard jointing system.

Product Overview

Less Mess Topping Compound is a new semi lightweight pre-mixed formulation designed for easier application and sanding. Used as a topping coat only and not for bedding tapes and second coats, Less Mess Topping is specially formulated to finish joints and angles of plasterboard or fibre cement.

With over 80%* less airborne dust generated when sanding compared to the standard DIY jointing compound range it means less mess in the home. This, along with a 24-hour drying time between coats makes Less Mess Topping Compound ideal for home DIY jobs.

*As tested by Safe Environments Pty Ltd, November 2019

 

Typical Applications

Less Mess Topping Compound is used as the topping coat in a 3-coat plasterboard or fibre cement jointing system. It is ideal for use on internal walls and ceilings and as a topping compound over Wet Area Base Coat in areas subject to moisture or high humidity.
Gyprock Less Mess 2.25kg Topping Compound
Data Sheet Safety Data Sheet Find a Supplier
Less Prep Time

Less Prep

Less Prep Time 
Less Sanding Time

Easy Sanding

Less Effort Sanding
Less Clean up Time

Easy Clean up

Less Mess to Clean up

DIY Range

Professional quality in convenient pack sizes

Technical Specifications

Product Options

Gyprock Less Mess Topping Compound is available in a 2.25kg pail with a shelf life of 1 year from date of manufacture.

For product availability and to place an order, contact your nearest supplier.

Physical & Chemical Properties

Specific gravity (H²0=1) 1.2 - 1.5
VOC content (as specified by GBCA) <37 grams per Litre as VOC content per material

Product Manufacture

Gyprock Less Mess Topping Compound is manufactured by CSR Gyprock in Australia to stringent product specifications.

Product Handling

Transportation and manual handling: Refer to the Gypsum Board Manufacturers of Australia (GBMA) website for recommended OH&S practices.

Storage: Store buckets of compound in a dry environment out of direct sunlight. Remove lid and stir prior to use. Unused product should be stored by resealing the original bucket. Remix prior to use. Discard if drying has commenced.

Health and Safety

Safety Data Sheets are important documents in the construction industry and assist in the continuing focus on occupational health and safety on and off sites.

Installation Instructions

Installing to Standards

AS/NZS2589: Gypsum linings – Application and Finishing outlines the procedures for jointing and finishing of Gyprock plasterboard in conjunction with additional details contained in Gyprock Technical Literature.      

 

Installation

Hand Tool Application

  • Using a broadknife or trowel, apply a thin top coat of Topping Compound wide enough to conceal the previously coated joint – about 250mm. Soften the outer edges of the newly trowelled compound with a damp brush before feathering the edges with a trowel.
  • Cover previously coated fastener heads, overlapping about 25mm.

Sanding 

 Allow compound to dry and harden for at least 24 hours, then sand to a smooth finish using 150 grit sandpaper or 150-220 grit mesh.

Painting

Apply all paints in accordance with paint manufacturers recommendations

 

NOTE: In wet area applications, a topping coat should not be used on areas to be tiled

 

 

Resources

Gyprock makes available resources that provide comprehensive selection, design, installation and maintenance guidance. 

 

DIY Video & Guide

Jointing Gyprock Plasterboard - watch the video or download the guide

Manufactured for Life

Gyprock products are manufactured for life with all CSR products designed to achieve optimal performance when part of a CSR integrated system.

Certified Low VOC

Exceeds the GBCA specification for Volatile Organic Compound content according to independent testing.

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