If you’ve ever wondered whether sanding between coats of paint is necessary, you’re not alone. It’s a common question among homeowners and DIY painters aiming for a smooth, professional-looking finish. While sanding can feel like an extra step, it’s often the key to achieving flawless, long-lasting results. Here’s when—and how—to do it properly.
Why is sanding between coats important?
Sanding between coats helps create a smooth, even surface and improves paint adhesion. Each coat of paint can leave behind small imperfections such as dust, air bubbles, or brush marks. A light sanding smooths these out, allowing the next coat to bond better and look more uniform once dry.
It’s especially important for:
- High-gloss or semi-gloss finishes
- Cabinets, doors, and trim
- Surfaces that need a silky, flawless texture
Skipping this step may leave a slightly rough surface or uneven sheen.
Do you always need to sand between coats?
Not always—but it depends on the type of paint, surface, and desired finish.
You should sand between coats when:
- You’re using oil-based or high-gloss paints
- The surface feels rough or grainy after the first coat
- There’s been more than 24 hours between coats
- You want a glass-smooth finish (e.g., furniture, cabinetry, trim)
You can often skip sanding between coats of matte or eggshell latex paint on walls and ceilings if the surface feels smooth and the next coat is applied within a few hours.
What kind of sandpaper should you use between coats?
For most interior paint projects, use fine-grit sandpaper:
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220-grit for latex or acrylic paints
- 320-grit for oil-based or high-gloss finishes
You don’t need to apply heavy pressure. A light, even sanding is enough to remove small imperfections and dull the surface slightly for better adhesion.
How do you sand between coats properly?
Follow these simple steps for the best results:
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Wait for the first coat to dry completely. Check the paint can for the manufacturer’s recommended drying time.
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Lightly sand the surface. Use a fine-grit sanding block or sandpaper, moving in smooth, circular motions.
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Wipe away dust. Remove all sanding residue with a clean, damp cloth or tack cloth.
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Apply the next coat evenly. Use high-quality rollers or brushes for smooth coverage.
You can find professional-grade sanding tools, tack cloths, and paints at Randall’s Paint Collections
Can you sand water-based paints?
Yes, but gently. Latex and acrylic paints are softer than oil-based paints, so excessive sanding can damage the finish. Always wait until the paint is completely dry and use a light touch.
What if you forget to sand between coats?
If the paint layers bond well and the surface feels smooth, it’s often fine to proceed. However, for projects requiring a refined finish—like trim, furniture, or cabinets—skipping sanding may result in:
- Minor surface roughness
- Visible brush strokes
- Reduced durability of the topcoat
If you notice rough spots after the paint dries, lightly sand before applying the final coat for a professional look.
Do you need to sand before the first coat of paint?
Yes, especially on:
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Glossy surfaces: Sanding helps new paint stick properly.
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Previously painted areas: It evens out texture and removes residue.
- Bare wood or furniture: Sanding opens the grain, allowing primer and paint to adhere better.
After sanding, always apply a primer before your first coat for best results. You can explore premium primers and sealers in Randall’s Collections
Can you sand between coats of primer too?
Absolutely. Lightly sanding primer creates a smoother base for paint and ensures the final colour looks even. Just make sure the primer is fully dry before sanding—this usually takes about 1 to 2 hours for latex primer or 4 to 6 hours for oil-based products.
Should you hire a professional for sanding and repainting?
If your project involves large surfaces, old paint layers, or specialty finishes, hiring a professional painter ensures exceptional results.
Randall’s can connect you with trusted painting experts who handle all prep, sanding, and finishing with precision. Visit our Services Pageor fill out a Painter Order Form
to get started.
Get Expert Help and Quality Products for Smooth Results
For a perfect finish every time, proper surface preparation—including light sanding—is key. Whether you’re painting walls, cabinets, or furniture, Randall’s experts can guide you on products and techniques tailored to your project.
Visit your nearest location or Contact Usfor personalized advice. Browse our range of paints, primers, sanding tools, and accessories in the Collections
Smooth, seamless, and long-lasting—Randall’s has everything you need for professional results between every coat.