Grey primer "fine" 180ml

The base that makes the difference before applying the first colour

When working with static models, figures, dioramas, or slot car bodies, surface preparation is as important as the final paint. The Tamiya Fine Surface Primer (ref. 87042) in grey and 180 ml spray format is one of the most established references on the market precisely because of its ability to adhere firmly to both plastic and metal, creating a homogeneous base that enhances the coverage of any subsequent paint.

Main features

• Spray format: 180 ml can ready to use, no airbrush or dilution required.
• Colour: neutral grey, ideal as a universal base before applying light or dark colours.
• Compatibility: suitable for plastic and metal.
• Fine particle: the term "Fine" indicates a very fine grain size that does not obscure details or delicate reliefs.
• Quick drying: allows for work without long waits between layers.

Applications in the hobby

This primer fits into a wide spectrum of disciplines:

• Static models: creates a uniform surface on which acrylic or enamel paints adhere more solidly, reducing the risk of peeling.
• Figures and dioramas: due to its fine particle nature, it respects the smallest details of the sculpting, which is essential when working with high-definition miniatures.
• Slot car bodies: before customizing or repainting a body, a layer of primer ensures that the paint does not peel off with use on the track.
• Metal parts: significantly improves adhesion on metal surfaces that would otherwise reject paint.

Compatibility with paints

Once the primer layer is dry, the surface is ready to receive acrylic, enamel, or lacquer paints. It is perfectly compatible with the ranges of Tamiya, Vallejo, Ammo, and Kaleido, among other leading brands in the sector.

Application tips

• Shake the can well for at least one minute before applying.
• Apply in thin, even layers at a distance of 20 to 25 cm from the piece.
• Work in a ventilated environment with stable temperature; avoid excessive humidity to prevent the "blush" effect (milky surface).
• If the piece is virgin plastic freshly out of the mould, clean it with water and neutral soap before priming to remove any release agent residues.
• Allow to dry completely for 30 minutes to 1 hour depending on environmental conditions before applying the next layer of paint.
• For the best result, lightly sand with fine grit (400-600) after drying if the piece has imperfections.

Frequently asked questions

Is it necessary to prime before painting plastic?

It is not strictly mandatory, but it is highly recommended. Priming improves paint adhesion, equalizes the porosities of the surface, and allows final colours to appear more true and uniform. In figures with fine details, it also helps to detect imperfections before painting.

Can I apply this primer over an already painted slot car body?

Yes, as long as the previous paint is well adhered and free of peeling. If the body has damaged areas, it is best to sand or strip before priming to ensure a clean base.

Will the grey tone affect the light colours I apply on top?

The neutral grey may require one or two additional layers of very light colours (white, yellow, cream) for complete coverage. If you are going to work exclusively with very light colours, you might consider using the white version of the same range. For medium and dark colours, grey is the most versatile base.

How long does it take to dry?

Under normal conditions (temperature around 20 °C and moderate humidity), touch dry occurs in about 20-30 minutes. To work on top with paint, it is recommended to wait between 30 minutes and 1 hour.

Can I use this primer with an airbrush?

This product is specifically formulated for spray application. If you are looking for a primer for airbrush, Tamiya and other brands like Vallejo or Ammo offer liquid versions designed for that use.

Is it compatible with resins?

The information provided by the manufacturer indicates compatibility with plastic and metal. For resin parts, it is advisable to do a test in a non-visible area before applying it to the entire piece, as the composition of resins can vary.

Tamiya Fine Surface Primer in grey (ref. 87042, 180 ml spray) is one of the most trusted primers in scale modelling, figure painting and slot car bodywork preparation. Compatible with plastic and metal surfaces, its fine particle formula preserves the sharpest details while ensuring solid paint adhesion for acrylics, enamels and lacquers from brands like Vallejo, Ammo or Tamiya itself. A reliable first step for any serious hobbyist looking for a smooth, professional finish.