How to paint with Water-Based spray paint, A Step-by-step guide
Water-based spray paint is an easy-to-use choice for a wide range of painting projects. It is particularly well suited for items with lots of small details and hard-to-reach areas, such as the cot featured in this guide.
Maston Water-Based-series spray paints offer excellent coverage, a mild odour and fast drying times. The high-quality nozzle ensures smooth, even and controlled application.
Follow our step-by-step guide to give old furniture and other suitable items a fresh new look with spray paint!
Tools and products you will need
- Degreaser: Maston Degreaser (400006)
- Primer: Maston Water-Based Primer White, 350 ml (1360521)
- Topcoat: Maston Water-Based Oat RAL 1015, 350 ml (1361015)
- Clear coat: Maston Water-Based clear coat – choose your preferred gloss level
- Spray handle: 702011
- Sandpaper, 180 grit
- Masking tape
- Protective paper or plastic sheeting
- Personal protective equipment (PPE), such as a suitable mask, gloves and safety goggles, as specified on the product label

Step-by-step Instructions
Painting with water-based paint follows the same traditions as any other painting project. First, do thorough prep work, followed by a primer, then the actual painting, and finally, varnishing if necessary. To achieve the best results, we always recommend using the same type of paint from base to top coat.
1. Preparation
- Choose a suitable, well-ventilated area for painting.
- Carefully cover and protect all surrounding surfaces and objects from overspray.
- Ensure the painting area is well-ventilated.
2. Remove or protect parts you don’t want to paint
- Use a screwdriver or another suitable tool to remove any parts that should not be painted.
- If parts cannot be removed, carefully protect them with masking tape and plastic sheeting.
- Label any removed parts to make reassembly easier.
For a refreshed, coordinated look, you can also paint all suitable parts in the same colour.
3. Clean and sand the surface
- Thoroughly clean the surfaces to remove grease, dirt and dust.
- Lightly sand the surface using 180-grit sandpaper to improve paint adhesion.
- Carefully remove all sanding dust. If needed, use Maston Degreaser (400006) according to the product instructions and allow the surface to dry completely before painting.
4. Apply the primer
- Test the products on a small, inconspicuous area first.
- Apply Maston Water-Based Primer White in thin, even coats.
- The primer helps create a more uniform surface and improves adhesion of the topcoat.
- A white primer is a good choice when using light or bright topcoat colours.
Allow approximately 10 minutes between coats before applying the next layer.
5. Apply the topcoat
- Choose your preferred colour from the Maston Water-Based range. In this guide, we use Oat RAL 1015.
- Shake the spray can thoroughly, following the instructions on the label.
- Apply the paint in smooth, even movements using thin coats. Apply 1-3 coats as needed to achieve the desired finish.
- Allow each coat to dry for approximately 10 minutes before applying the next one, following the product instructions. Two or three thin coats will generally provide good coverage.
- For larger surfaces, use a spray handle to make application easier and reduce finger fatigue.
Tip: Several thin coats usually provide a smoother, more even finish than one thick coat.
6. Finish with a Clear Coat (Optional)
If the painted surface will be subject to wear and tear, you can protect it with a Maston Water-Based clear coat.
- Apply the clear coat according to the product instructions.
- Apply 1-2 coats, allowing approximately 10 minutes between coats, in accordance with the product instructions.
A clear coat is optional, but it can help improve surface durability when used on suitable surfaces.
7. Allow the paint to cure before use
Although the surface is touch-dry in approximately 20 minutes, the paint takes longer to reach its full hardness.
- Follow the drying and curing times specified on the product label.
- Allow the surface to cure sufficiently before using the item or reattaching any removed parts.
- Remove the protective coverings and clean up your workspace when it is safe to do so.
The paint reaches its full hardness in approximately 7 days.
Tips for the best results
- Ensure good ventilation. Always work in a well-ventilated area to avoid inhaling spray mist and vapours, even though the Maston Water-Based range has a mild odour.
- Test before painting. Try the paint on a small, inconspicuous area to check the colour, adhesion and final appearance.
- Take your time. Allow each coat to dry properly to achieve the best possible finish.
- Use a spray handle. It makes painting larger surfaces easier and helps reduce finger fatigue.
With the Maston Water-Based range, you can easily refresh the look of old furniture and other suitable items. Careful preparation, the right tools and proper application will help you achieve a smooth, attractive and durable finish.
Maston products outside of Finland: please check your local retailers. Retailers are found all around Europe!
If you are located outside of Finland, please check your local retailer for the products. Online store delivery is only available within finland.
Products used in the article
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Degreaser Spray
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Water-based Primer
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Water-based spray paint
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Water-based Lacquer
12,90 € sis. 25,5% ALVNEW! Spray the Revolution! The next generation of Water-Based Lacquer provides durable protection and a smooth, professional finish. Its fast‑drying,… -
Spray Gun
10,80 € sis. 25,5% ALVMaston Spray gun will turn your aerosol spray can into a spray gun for a smooth, professional finish. Utilize this…