Ultra Sealer Undercoat

Australis Ultra Sealer Undercoat

Guaranteed for 12 Years.

Product Code: 816-100

Product Description

Australis Ultra Sealer Undercoat is a 100% Acrylic formula specially designed for use on interior and exterior surfaces to give long lasting performance. The product is easy to apply without messy spatter.


  • Water based
  • 100% acrylic
  • Excellent weather resistance
  • Recoat in 2 hours
  • Resists mould and fungal growth

Areas of Use

Designed for interior and exterior surfaces to give long lasting protection against Australia’s severe conditions. Suitable for direct application to all types of masonry, galvanised iron, timber and cement surface.

Method of Application

  • May be applied by brush, roller, airless or conventional spray
  • Stir well before use by stirring with a broad flat paddle in a scooping motion
  • Do not apply if temperature is below 10C or likely to fall below 10C during drying
  • Do not apply if rain is expected or in hot, dry conditions


Approximately 16 square metres per litre. This will vary depending on the application technique, the surface profile and absorption qualities of the surface.


Water – Use up to 100ml per litre to aid application if necessary in hot dry conditions.

Drying (25C and 50% Relative Humidity)

  • Touch dry after 20 Minutes
  • Re-coatable after 2 Hours

Clean Up

Clean all equipment with water.

Surface Preparation

Remove all soft, powdered, blistered, loose or flaking paint. Remove all traces of grease, dirt, oil or smoke using a suitable detergent. Wash with clean water and allow to dry. Repair any cracks or surface defects with a good quality filler. Sand smooth and dust off.

Previously painted surfaces must be sound and have good adhesion. This can be checked by cutting an “X” with a sharp blade, press a piece of clear tape over the “X” as firmly as possible with the ball of the thumb then as quickly as possible, tear off the tape in one movement. If the previous paint comes off it must be removed before repainting.

Note: Mould, fungal infected surfaces and efflorescence must be treated to eliminate the possibility of recurrence.


1 Ltr, 2 Ltrs, 4 Ltrs, 10 Ltrs, 15 Ltrs.


White. May be tinted.

View the Material Safety Data Sheet (MSDS) for information regarding Health and Safety, First Aid, and Paint Disposal Procedures.