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ProXL UltraBuild Primer Filler Aerosol 500ml

£19.95 Total Price - Incl. VAT

Product Description

ProXL UltraBuild Primer Filler Aerosol (500ml)

A unique high-build spray filler-primer providing excellent adhesion to many difficult substrates including plastics and aluminium.  This two-in-one filler and primer dries fast, sands easily and can be over-coated with either water or solvent-based paints.

Colours Available:

  • Grey
  • Black
  • White

Features & Benefits:

  • Ultimate adhesion
  • High film thickness
  • Resistant to silicone wipe

Suitable Substrates: (cleaned & abraded)

  • Bare Steel
  • Old Paint Work
  • Aluminium
  • FibreGlass
  • Many Plastics

Environmentally Sound:

This product is 100% free of heavy metals and the caps and packaging are made of recyclable material.

Basis of binder

Acrylic

Colour

Various

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

With over 35 years of experience supplying to some of the best-known names in the trade, Your Spray Paints are thrilled to be able to expand our supply network to households across the UK. With more and more people discovering the role that quality paint plays in creating a unique interior, our market base has grown and we now offer over 400,000 colour choices professionally mixed to your specifications.

Whatever type of project you’re working on it’s essential you have the right paint to create a durable finish. We can supply paint for all types of surfaces including metal, wood, plastic and concrete. If you’re not sure what you need, just get in touch with our friendly customer service team at 0800 530 0375, email contact@yourspraypaints.com or use our quick find tools located on the help & advice pages.

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If you have any queries with respect to this product please ask a member of staff for help on 0800 530 0375 or customerservice@yourspraypaints.com

View Directions Before Use

*Please note – These are custom mixed colours, colour accuracy should be checked before application. No responsibility for colour differences can be accepted after use.

Technical Data & SDS

Technical Data

Product Type Custom mixed paint available in aerosol and tin formats
Available Sizes 400ml Aerosol, 1L, 2.5L and 5L tins
Paint Options Available in selected 1K and 2K paint systems
Finish Options Gloss, semi-gloss, satin and matt finishes available

Theoretical Coverage

400ml Aerosol Approx. 1m² based on 2 standard coats
1L Tin Approx. 5–7.5m² based on 2 standard coats
2.5L Tin Approx. 12.5–15m² based on 2 standard coats
5L Tin Approx. 25–30m² based on 2 standard coats

Safety Data Sheets

2K Acrylic SDS View Safety Data Sheet
1K QAD Enamel SDS View Safety Data Sheet
1K Synthetic SDS View Safety Data Sheet
1K Cellulose SDS View Safety Data Sheet

Useful Technical Links

Drying Times View Drying Times
Product Storage View Storage Guide
V.O.C Information View V.O.C Information
Safety Data Page View All Safety Data Sheets

Coverage, drying times and technical performance may vary depending on paint system, surface type, preparation, application method, temperature and humidity.

Colour Data

Colour Data

Colour Name [colour_name]
Colour Range [colour_range]
Colour Description [colour_description]
Colour Family [colour_family]
Undertone [undertone]
Hex Code [hex]
RGB [rgb]
CMYK [cmyk]
LAB [lab]
HLC [hlc]
Available Formats Aerosol Spray Paint and Tinned Paint
Available Paint Systems 1K / 1 Pack and 2K / 2 Pack options
Available Finishes Full Gloss, Semi Gloss, Satin and Matt
Typical Uses [typical_uses]
Colour Match Notice This product is mixed as a colour match to [colour_range] [colour_name]. It is not manufactured by or affiliated with [colour_range]. Always check colour accuracy before full application.
Important Colour Note Digital colour values are provided as guidance only. Screen display, lighting, surface type, primer, gloss level and application method can all affect the final appearance.

Safety & Compliance

How To Use Videos

Whats Included in the Kit

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Paint Coverage Calculator

Estimate how many aerosols or tins you may

need based on approximate spray coverage.

Painting Metal

Preparation Clean, degrease and lightly key
Primer Etch Primer for bare metal (optional if painted)
Topcoat 1K Poly Synthetic or 1K QAD Enamel (2K ADC also option)
Protection Clear lacquer recommended for outdoor durability

Tip: For best results, key lightly after primer cures.

Painting Plastic

ABS/PVC (most household plastics)

PreparationDegrease and lightly scuff the surface
PrimerPlastic Adhesion Primer recommended
Topcoat1K Poly Synthetic or 2K ADC
OutdoorsClear lacquer improves UV resistance and longevity

Tip: Smooth plastics rely on primer for adhesion — skipping it often causes peeling.

Painting Plastic

PP/PE (Difficult Plastics)

PreparationClean thoroughly; avoid aggressive sanding
PrimerStrong Adhesion Plastic Primer essential
Topcoat1K Poly Synthetic or 2K ADC
TestingAlways test adhesion before full application

Tip: If paint scratches off easily without primer, the plastic is usually PP or PE.

Painting Wood

PreparationSand smooth and seal with wood sealer
PrimerHigh-build primer optional for MDF types
Topcoat1K Cellulose 
OutdoorsUltra Clear lacquer recommended for moisture protection

Tip: Light key between coats gives a smoother, longer-lasting finish.

Concrete/Brick/Masonry

PreparationClean, dry and remove loose material
PrimerMasonry or sealing primer recommended
Topcoat1K QAD Enamel
CoveragePorous surfaces may require extra coats

Tip: Masonry absorbs paint quickly — allow longer drying time between coats.

Glass/Ceramic/Tiles

PreparationDegrease thoroughly; do not sand
Primer Plastic primer recommended
Topcoat1K Poly Synthetic
ProtectionUltra Clear lacquer improves scratch resistance

Tip: Also perform a testing piece before full application.

Automotive

PreparationClean, degrease and sand appropriately
PrimerEpoxy & 2K HB primer as required
TopcoatBasecoat matched to colour
Protection2K Clearcoat 

Tip: Always check the recommendations for each substrate and do not use epoxy and etch primer together.

Other Surfaces

Surface TypeUnusual, mixed or specialist material
RiskIncorrect paint choice may cause adhesion failure
RecommendationTechnical advice required before purchase
Next StepContact our Technical Services team

Tip: If your project involves chemicals, composites, heat, solvents or industrial use, specialist guidance ensures the correct system is used first time.

Paint Coverage Calculator

Small item = 0.3m²
Wheel = 0.5m²
Door = 1.5m²

Find the Right

Paint Type

Answer these simple questions and we will guide you to the right type

Painting Metal

Preparation Clean, degrease and lightly key
Primer Etch Primer for bare metal (optional if painted)
Topcoat 1K Poly Synthetic or 1K QAD Enamel (2K ADC also option)
Protection Clear lacquer recommended for outdoor durability

Tip: For best results, key lightly after primer cures.

Painting Plastic

ABS/PVC (most household plastics)

PreparationDegrease and lightly scuff the surface
PrimerPlastic Adhesion Primer recommended
Topcoat1K Poly Synthetic or 2K ADC
OutdoorsClear lacquer improves UV resistance and longevity

Tip: Smooth plastics rely on primer for adhesion — skipping it often causes peeling.

Painting Plastic

PP/PE (Difficult Plastics)

PreparationClean thoroughly; avoid aggressive sanding
PrimerStrong Adhesion Plastic Primer essential
Topcoat1K Poly Synthetic or 2K ADC
TestingAlways test adhesion before full application

Tip: If paint scratches off easily without primer, the plastic is usually PP or PE.

Painting Wood

PreparationSand smooth and seal with wood sealer
PrimerHigh-build primer optional for MDF types
Topcoat1K Cellulose 
OutdoorsUltra Clear lacquer recommended for moisture protection

Tip: Light key between coats gives a smoother, longer-lasting finish.

Concrete/Brick/Masonry

PreparationClean, dry and remove loose material
PrimerMasonry or sealing primer recommended
Topcoat1K QAD Enamel
CoveragePorous surfaces may require extra coats

Tip: Masonry absorbs paint quickly — allow longer drying time between coats.

Glass/Ceramic/Tiles

PreparationDegrease thoroughly; do not sand
Primer Plastic primer recommended
Topcoat1K Poly Synthetic
ProtectionUltra Clear lacquer improves scratch resistance

Tip: Also perform a testing piece before full application.

Automotive

PreparationClean, degrease and sand appropriately
PrimerEpoxy & 2K HB primer as required
TopcoatBasecoat matched to colour
Protection2K Clearcoat 

Tip: Always check the recommendations for each substrate and do not use epoxy and etch primer together.

Other Surfaces

Surface TypeUnusual, mixed or specialist material
RiskIncorrect paint choice may cause adhesion failure
RecommendationTechnical advice required before purchase
Next StepContact our Technical Services team

Tip: If your project involves chemicals, composites, heat, solvents or industrial use, specialist guidance ensures the correct system is used first time.