ProXL Ultra Build Primer Filler Spray 500ml

A primer filler spray suitable for a range of automotive surfaces

  • Suitable for bare steel, old paint work, aluminium, fibreglass and many plastics
  • Can be overcoated with solvent or water based paints
  • Fast drying and easily sanded
  • Coverage: 1m² per litre




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Product Description

ProXL Ultra Build Primer Filler Spray is a high build sprayable filler for automotive surfaces. It has excellent adhesion properties and can be applied to difficult surfaces such as plastic and aluminium.

The primer filler is fast drying and is easily sanded to prepare for application of a topcoat. This coating can be overcoated by either water or solvent based paints, including Palatine Chassis Spray paint and Indasa Acrylic Spray Paint Black.

The sprayable filler is available in black, grey or white to fit the desired topcoat colour and ensure there is no bleeding when the next coat is applied.

Aerosol Size: 500ml

Coverage: 1m² per litre

Please note: The colours shown here are only a guide. This is due to the fact that every computer monitor has a different capability to display colours. In addition, everyone sees these colours differently.


Suitable Substrates (cleaned & abraded): Bare steel, old paint work, aluminium, fibreglass, many plastics
Basis of binder: Acrylic
Colour: Black, White, Grey
Coverage: 1m²
Temperature resistance: to 90 °C
Storage stability: 10 years if appropriate storage provided (=10°-25°C, relative air humidity of max. 60%)
Size: Aerosol cans, maximum nominal volume 500ml
VOC content: 625.8 g/l

Application Guide:

  • Remove all rust from metal surfaces
  • Clean surface with a suitable degreaser then abrade
  • Carry out test spray
  • Areas to be sprayed must be free of grease, dust and dry
  • For professional use only
  • Wear an appropriate respirator

Application Process:

  • Shake aerosol for at least two minutes, after agitator ball is free
  • Apply in cross coats from distance of 250mm from object
  • Allow 10mins for flash off before overcoating
  • Apply 2-3 coats or as required
  • Infrared for 5-10mins
  • Through cure 20mins at 20ºc
  • Sandable with P400–P500
  • After use, turn aerosol upside down and empty valve

Surface Preparation
Proper surface preparation is essential for the success of any protective coating system. Before you begin ensure the area is free from any dust, oil, grease, old coatings and surface contaminants.

The preparation of steelwork prior to painting generally falls into two main areas; that of degreasing and the removal of rust and scale.
All surfaces to be painted should be clean, dry and free from loose and flaking material, dust, grease and millscale, etc.
Prime bare surfaces with Palatine Anti-Corrosive Metal Primer or Palatine All Purpose Primer / Undercoat in accordance with our recommendations
For non-ferrous metals use Palatine Fast Dry etching primer.
Rub down previously gloss painted surfaces with fine waterproof abrasive paper and rinse thoroughly.

Stir the paint with a drill stirrer or wooden baton at least 2” wide. Continue to stir during application.

Best results are obtained in warm (minimum 10°C), dry conditions.

Mix thoroughly for approximately 2 minutes using a drill stirrer. A wooden batten at least 25mm wide is also ideal.
Apply an even coat using a brush, short to medium pile roller on smooth surfaces and a long pile roller on textured surfaces
For spray application by either airless or conventional spray a dilution ration of no more than 10% is recommended with Palatine White Spirit by volume applying thin coats allowing each one to dry before applying subsequent coats.
Once dried, a second coat can be applied at full strength. This will prolong the life and performance of the coating.

Thinning and Cleaning: Use Palatine White Spirit.

If using more than one batch of the same colour, intermix before use

Preceding Coat
Prime bare surfaces with Palatine Anti-Corrosive Metal Primer or Palatine All Purpose Primer / Undercoat in accordance with our recommendations
For non-ferrous metals use Palatine Mordant Solution.

Subsequent Coat
A second coat is recommended for maximum protection.


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