USG Boral PREMIUM PREMIX joint compound is an air-drying. Lightweight compound suitable for all three coat applications or as a finishing coat for all plasterboard joints. Angles and fastener heads.
Application: Surfaces must be clean and free from dust
USG Boral Premium Premix be diluted to a workable viscosity by adding water if desired followed by mechanical mixing
Can be applied by hand or mechanical tools
When using USG Boral Premium Premix for all three coats, the first coat must be used to bed a high-quality paper tape. Directions
Jointing and Finishing First Coat (150mm wide) 1. Cover joint with a thin layer of compound and embed paper tape. Leaving at least 1mm of compound under feathered edge. Let dry and sand lightly. Second Coat (200mm wide) 2. Apply second coat, feathering approximately 50mm beyond first coat. Let dry and sand lightly. Third Coat (275mm wide) 3. Apply third coat. Feathering 75mm beyond second coat. Let dry and sand lightly. Finish fastener heads. Corner beads and inside corners as required with at least three coats of joint compound, feathered out onto panel faces and finished to a smooth surface. 4. USG Boral Premium Premix compound must be allowed to dry thoroughly (up to 24 hours depending on temperature and humidity) before re-coating or sanding. 5. Only apply over setting type compounds that have been allowed to dry thoroughly. 6. Sand with care using 180 to 220 grit sandpaper. 7. Thoroughly clean all tools and equipment after use. NOTE: All surfaces including applied joint compound require light sanding before painting
Mixing
Mixing: Always use clean tools
Do not mix with residues of previously used compounds
The inclusion of such materials will impair the performance of this product and will void the product warranty
USG Boral Premium Premix may appear thick in pail. Lightly mix & test its application before adding water. If required; add water to achieve desired consistency
Caution: Avoid over-thinning when adding water as this may cause cracking and excessive shrinkage
If liquid has separated from the compound, stir carefully to restore consistency
Caution: Do not overmix; overmixing can introduce air bubbles. which can create surface imperfections
Storage
Storage: USG Boral Premium Premix should be stored under a cover in a dry environment and protected from temperature extremes; storage in an unsuitable environment can shorten the lifespan of this product
USG Boral Premium Premix has a shelf life of 12 months from date of manufacture
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