Painting · Materials

Painting materials

The materials that decide whether a paint job lasts are the primer, the caulk and the patching compound — not the topcoat brand. Choose primer based on the problem you're solving (bare wood, stains, chalky surfaces, glossy surfaces), and sheen based on how much cleaning and light the surface gets. Higher sheen is more washable and more likely to show wall imperfections.

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Sheen is a practical choice, not an aesthetic one. Flat and matte hide wall defects but scrub poorly. Eggshell and satin are the usual compromise for living spaces. Semi-gloss and gloss go on trim, doors and wet rooms because they clean up and shed moisture, and because trim is small enough that the extra shine reads as intentional.

Primer is not optional filler. Bare wood, patched drywall, stains, tannin-prone woods, chalky exteriors and slick previous finishes all need the right primer or the topcoat will not bond. If a bid says "two coats" with no primer on a surface that needs one, that is a corner being cut.

Caulk and patching are the invisible materials. Failing caulk at trim joints and siding seams is where water gets in, and it is the most common reason an exterior repaint looks bad in year two. Ask what gets re-caulked and whether old failed caulk is removed or just painted over.

Do not let a contractor invent product claims for you. If they tell you a coating carries a specific lifetime or warranty, ask for the manufacturer's written data sheet and warranty document. Coating warranties are usually material-only and full of conditions; the workmanship warranty from the contractor is the one that matters more.

How to choose

Pick sheen by room use, not by trend: Kitchens, baths, hallways and kids' rooms take abuse. Ceilings and formal rooms don't.
Ask what primer, where: "Spot prime as needed" is vague. Ask which surfaces get primed and with what type — stain-blocking, bonding, or masonry.
Get the exact product line in writing: Brands sell budget, mid and premium lines under the same name. The line matters more than the brand.
Don't buy paint yourself to save money: You lose the contractor's pricing and often their workmanship warranty, and you own any color or product mistake.
Old paint may be regulated waste: Disposal rules for leftover paint vary by state, and many states run PaintCare drop-off programs. Ask your contractor how they dispose of waste, especially on pre-1978 homes.

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All painting materials

Latex Paint

Oil Based Paint

Primer

Elastomeric Coating

Stain

Exterior Paint

Low Voc Paint

FAQ

Painting materials — common questions

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Is oil-based paint still worth using?

Rarely for whole rooms. Modern water-based enamels have largely replaced oil for trim, and many areas restrict oil-based products for VOC reasons. Oil still has niche uses over certain stains and metals. Ask your contractor why, not just what.

How many coats do I actually need?

Two finish coats is the normal professional standard over a properly primed surface. One coat is only realistic on a same-color refresh in good condition. Big color changes and deep colors may need more.

Does 'paint and primer in one' replace primer?

Not for problem surfaces. It's a self-priming topcoat for sound, previously painted surfaces. Bare wood, stains, glossy finishes and repairs still need a real primer.

What about lead paint under my current paint?

Intact paint that isn't disturbed is generally not the hazard — sanding and scraping is, because it creates lead dust. In pre-1978 homes, EPA requires paid work that disturbs paint to be done by a certified firm using lead-safe practices.

Sources

Where these figures come from

EPA — Protect Your Family from Sources of Lead · retrieved 2026-07-25
EPA — Lead Renovation, Repair and Painting Program · retrieved 2026-07-25