DULUX Acrylic Sealer Undercoat with Ultrasmooth

Code: 630-84191

Approvals: APAS-0172

A low VOC acrylic sealer undercoat with excellent hiding power and filling properties for use on interior plasterboard and textured surfaces.


  • Ultrasmooth technology
  • <5g/L VOC
  • Low odour


  • Excellent hiding power and sanding properties
  • Fills minor cracks and defects leaving a smooth finish
  • Excellent spreading, wet edge, quick to apply, quick drying
  • Seals and undercoats in one step
  • Can be used under any topcoat (water or oil based)

Performance Guide

Gloss Level Indicator2
VOC Properties<5g/L untinted
WeatherabilityInterior use only.
Heat ResistanceResists temperatures up to 60 degrees.
Water ResistanceResists mild & intermittent exposure to steam & condensation as part of system.
Abrasion ResistanceNot applicable
Solvent ResistanceSensitive to aromatic hydrocarbons and alcohols.


Roller, Brush, Airspray, Con-Spray.

Coverage - 12 square metres per L

Surface Preparation

Previously painted surfaces: Thoroughly clean all surfaces free of loose dust, surface chalk, grease, mould, mildew, wax and loose or flaking paint. Wash with sugar soap. Treat mould contaminated areas with antimould. Rinse with clean water. Fill nail holes, imperfections and cracks with a suitable filler, sand and dust off. For use on paperfaced plasterboard and masonry. On bare set plaster, use 1 coat of DULUX Sealer Binder.

Clean Up

Clean all equipment immediately with water.


DULUX Acrylic Sealer Undercoat is a low VOC and low odour premium acrylic sealer and undercoat for interior use. DuluxAcrylic Sealer Undercoat’s unique Ultrasmooth™ Technology helps to eliminate the traditional problems of surface imperfections, as its high build allows it to fill minor cracks and defects.


1L, 4L, 10L, 15L


White. May be tinted with DULUX Decorama Tinters up to 25 ml per litre.

Use and typical specification

DULUX Acrylic Sealer Undercoat is especially designed for sealing and undercoating interior masonry and paperfaced wallboard, and for painting over roughly textured products such as Dulux Design™ Suede and Dulux Design Stone. Highly recommended wherever a smooth finish is required. Suitable for use under both water or solvent/oil based topcoats.

Product downloads

Product Data Sheet - pdfMaterial Safety Data Sheet

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