How to Use Gesso Primer: Step-by-Step Guide
Gesso seals and primes your surface so paint grips evenly and colours stay true. Here's how to apply it, how many coats you need for acrylic and oil painting, and how to get a smooth or textured finish.
How to use gesso: stir it well, then brush or roll a thin, even coat onto a clean, dry surface and let it dry completely. Add more coats once each one is dry: two coats for acrylic painting, three or more for oil painting. On very absorbent surfaces like raw MDF or timber, thin the first coat slightly with water. Lightly sand between coats if you want a smoother finish.
Solid Solutions Gesso Primer is a professional, water-based acrylic primer. It seals porous materials, improves paint adhesion and gives a consistent surface with ideal tooth for both acrylic and oil painting.
Shop gesso in white, off-white & black →What Is Gesso Used For?
Gesso is a ground: a primer layer that goes on before your paint. It seals the surface so paint doesn't soak in unevenly, gives the paint something to grip, and creates a stable, lightly textured base. It's suitable for canvas, timber panels, MDF, paper, cardboard, plaster and other porous surfaces.
| Quick reference | Gesso Primer |
|---|---|
| Coats for acrylic | Two coats are generally enough |
| Coats for oil | Three or more coats |
| Thinning | A little clean water or flow medium, mainly for the first coat on absorbent surfaces |
| Drying | Commonly one to several hours per coat, depending on temperature, humidity and thickness |
| Sanding | Optional between coats; 400–600 grit on the final coat for a fine, smooth surface |
| Tools | Wide flat brush or foam roller |
| Clean up | Warm soapy water while the gesso is still wet |
How to Apply Gesso, Step by Step
Stir thoroughly
Mix the gesso well before use so the pigment and binder are evenly dispersed.
Prepare the surface
Make sure the surface is clean, dry and free from dust, grease or loose particles.
Thin the first coat if needed
On very absorbent surfaces, thin slightly with clean water or flow medium. Don't over-thin, as this can reduce sealing strength.
Apply a thin, even coat
Use a wide flat brush or foam roller. Work in long, consistent strokes in one direction to minimise brush marks.
Let it dry completely
Allow the first coat to dry fully before adding another. Drying time varies with temperature, humidity and how absorbent the surface is.
Add more coats
Two coats are generally enough for acrylic painting. For oil painting, apply three or more for better sealing and durability. Lightly sand between coats if you want a smoother finish.
Start painting
Once fully dry, the surface gives a stable, lightly textured ground ready for paint.
Clean up
Wash brushes and tools in warm soapy water while the gesso is still wet.
Advanced Techniques and Professional Tips
Add a small amount of acrylic paint to tint the gesso. It cuts glare from bright white and lets you start on a coloured ground.
Lightly sand the final coat with fine 400–600 grit sandpaper for a smooth surface suited to realism and precise work.
Apply gesso more thickly with a palette knife or stiff brush to add surface texture for expressive, abstract or mixed-media work.
Brush each coat in the opposite direction to the last (horizontal, then vertical) for better coverage and fewer brush marks.
On raw MDF or timber, apply a slightly thinned first coat to seal the board, then follow with full-strength coats.
Combine light sanding with controlled thinning to tune how absorbent the surface is for glazing, dry brushing or fluid techniques.
Gesso Questions & Answers
What is gesso used for?
Gesso is used to seal and prepare surfaces for painting, improving paint adhesion and preventing uneven absorption.
Is gesso necessary on pre-primed canvas?
Pre-primed canvases can be painted on directly, but adding extra coats of gesso gives you more control over surface texture and absorbency.
How many coats of gesso should I apply?
Two coats are typically enough for acrylic painting. Oil painting generally benefits from three or more coats, especially on absorbent supports.
Can gesso be thinned with water?
Yes. Small amounts of water or flow medium improve brush flow, particularly for the first sealing coat on very absorbent surfaces.
How long should gesso dry before painting?
Wait until the coat is fully dry before painting. Drying time varies with temperature, humidity and thickness, but is commonly one to several hours.
Should gesso be sanded between coats?
Sanding is optional. Sand between coats for a smoother finish, or skip it if you prefer more tooth and texture.
Can gesso be used on wood or MDF?
Yes. Gesso is well suited to sealing and priming timber, MDF and hardboard. A slightly thinned first coat helps seal highly absorbent boards.
Can gesso be applied with a roller?
Yes. A foam roller gives fast, even coverage and can minimise brush marks on larger surfaces.
Is gesso the same as white acrylic paint?
No. Gesso is formulated as a ground with binders and fillers to create tooth and controlled absorbency, while white acrylic paint is designed mainly for colour.
Can acrylic gesso be used under oil paint?
Yes. Once fully dry, acrylic gesso provides a stable ground for oil painting. Use additional coats for better sealing and durability.
Related Guides
Want a primer that dries clear instead of white? See our guide to clear gesso (Clear Sealer), or browse the full range of acrylic mediums.
Ready to prime?
Gesso Primer in white (250ml to 10 litres), off-white and black.