Zinsser AllCoat Exterior Gloss (Water Based)


Zinsser AllCoat Exterior Gloss (Water Based) is the ultimate performance all-surface paint designed for long term decoration and protection.


  • Cracking, blistering and flaking resistant
  • Weather resistant
  • Long lasting finish
  • Easy to apply
  • Excellent colour retention
  • Multi-surface application
  • Anti-fungal degradation
  • Bonds to glossy paint
  • No primer needed!
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Product Description

Zinsser AllCoat Exterior Gloss (Water Based) is an ultimate performance all-surface paint. Designed for the long term decoration of timber, metal, masonry, plastic, concrete, cladding and more, it forms a vapour permeable, low maintenance water-shedding coating, re-coatable in 1 hour.

Zinsser AllCoat Exterior Gloss (Water Based) contains a biocide to protect the dried coating against fungal degradation and is designed for all exterior surfaces.

Recommended Uses

  • Painted wood
  • uPVC
  • Brick
  • Stone
  • Cured concrete
  • Galvanising
  • Metals
  • Cladding
  • Weathered bitumen
  • Stucco

For most jobs, there is no need to purchase a separate primer. After removing existing mould and mildew, two coats of Zinsser AllCoat Exterior Gloss (Water Based) will ensure that any exterior looks bright and beautiful for years.

Zinsser AllCoat Exterior (Water Based) is also available in Matt and Satin finishes, and in a Solvent Based Satin Finish - ideal for low application in lower temperatures.

Surface Preparation

Surfaces should be clean, dry, sound and free of any contamination that may interfere with adhesion. Remove all loose or peeling paint and chalky paint residue. Sand edges of any remaining paint film until smooth. Special precautions should be taken during surface preparation of pre-1960 paint surfaces as they may contain harmful lead. Avoid the inhalation of dust. Wear a suitable face mask if dry sanding. New concrete, masonry and other related surfaces must be cured at least 30 days before priming. Remove all existing mould and mildew before painting. To effectively remove mould and mildew, dirt and chalky paint residue, use Zinsser Mould Killer & Remover or an exterior house cleaner following the manufacturer’s instructions. Timber at risk from decay or insect attack should be treated with an appropriate preservative.

2 Coat System

Zinsser AllCoat Exterior Gloss (Water Based) is self-priming and will adhere to most sound surfaces. It bonds to existing glossy paints without sanding. The first coat of Zinsser AllCoat Exterior Gloss (Water Based) primes and seals the surface, providing a base for the topcoat. The topcoat completes the sealing process while providing additional moisture resistance and protection. Before painting, fill all nail holes and gouges. Where necessary, spot prime knots and sap streaks with Zinsser B-I-N. For new or unpainted cedar, redwood, or other resinous timbers prime with Zinsser Cover Stain.


Shake or stir well before using. Apply with synthetic bristle brush, roller or sprayer. For airless spraying, use a .017” tip and high-medium (2000-2500 PSI) pressure. Ensure air and surface temperature are between 10 & 32°C and humidity is less than 85% during application and cure of the product. Avoid painting in direct sunlight and maintain a “wet edge” to avoid lapping. Ensure conditions during application and cure are favourable, do not apply if there is a likelihood of rain, frost, fog or condensation affecting the freshly applied paint before it has fully cured.

Drying Time

At normal temperatures i.e. 20°C and 60% RH, Zinsser AllCoat Exterior Gloss (Water Based) dries to recoat in 1 hour and will be hard dry after 4 hours. Full adhesion and hardness develop in 7 days.

Colour Range

Zinsser AllCoat Exterior Gloss (Water Based) is available in a full range of BS4800, RAL and NCS colours. Multiple containers of tinted paint should be intermixed (boxed) to ensure colour uniformity.


Up to 12m² per litre on non-porous surfaces. On porous surfaces coverage will be reduced e.g. sawn timber - 4-8m² per litre. Planed timber - 8-12m² per litre. Normal application is 2 coats, however an additional coat should be applied to areas of high exposure such as sills and fascia boards.


Clean application tools, spatters and spills immediately with warm water and liquid detergent; rinse with water. Dried paint on brushes can be removed with Zinsser B-I-N Brush Cleaner & Restorer. Follow equipment manufacturer’s directions to clean spray equipment. Remove dried product with a household cleaner such as Zinsser Universal Cleaner & Degreaser, rinse with water.

Shelf Life and Storage

2 years from date of manufacture in unopened containers. Store indoors at 5 – 25°C and Protect from frost.


  • Not intended for application to exterior floors, decks or any surface subject to water immersion or prolonged contact with water.
  • It is recommended that unweathered / new powder coatings or stoved enamels are to be abraded and degreased thoroughly before applying AllCoat Exterior.
  • Not suitable for application onto new plastisol or new powder coating - These surfaces must be fully weathered.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)12m² per litre
Touch Dry30 mins
ApplicationBrush, Roller, Spray
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


questions John connor on 11/10/2018

I want to decorate a hall,stairs and landing . The finish has to be white gloss i don't want to use oil as it goes yellow after a few months. Would this product be suitable as there are quite a few panel doors to paint. Is it easy to keep the edge going I've found other water-based glosses don t look good on large painted areas.


Yes you can use Zinsser AllCoat Exterior Gloss (Water Based) for an interior application and it will give a non-yellowing finish. To paint doors we would recommend using a 4” short pile roller, it is much easier to keep a wet edge and will be quicker to cover a large area. You could also use one of the Zinsser primers to prime the door first if you wish, Zinsser Bulls Eye 1-2-3 or Zinsser B-I-N would both be suitable.

questions Samantha Gorman on 26/03/2018

Hi can i use the Black gloss all exterior paint on my composite door. If yes do i need to undercoat first?


Zinsser AllCoat Exterior Gloss (Water Based) can be applied directly to uPVC with no primer required. We would advise abrading the surfaces with a fine grade of sandpaper followed by a solvent wipe using methylated spirits. Then apply 2 coats of the AllCoat Exterior Gloss (Water Based) in your chosen colour.

questions Dave on 14/03/2016
Question: What would I use to thin Zinsser AllCoat Exterior Gloss for spraying?

Zinsser do not recommend this product is thinned at all for application by Brush, Roller or Spray. They recommend application by Airless Spray only, as this will allow the product to be applied without thinning. The product is water based so for clean up, you can clean application tools, spatters and spills immediately with warm water and liquid detergent; rinse with water. Follow equipment manufacturer’s directions to clean spray equipment. Remove dried product with a household cleaner; rinse with water.

questions Joy Durkin on 24/05/2015

Regarding Zinsser AllCoat Exterior Gloss I failed to open the datasheet for some reason. When I clicked on the datasheet button, there appears to be two. One listed as MSDS and the other listed as TDS so are there two products available? What is the cleanup on this/these product/s? Is a primer/undercoat recommended?


Every product has a Technical Data Sheet (TDS) and Material Safety Data Sheet (MSDS). Zinsser AllCoat Exterior Gloss is a water based product so clean up can be carried out with just water and for most surfaces no primer is required but for full details see information in the TDS.


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