Types of Paints and Varnishes for Finishing: How to Choose When Sourcing From China
Acrylic, alkyd, polyurethane and epoxy paints and varnishes: composition, durability, VOC levels and where to use them when sourcing furniture from China.
Paint and varnish are not a final touch — they are a distinct technical spec that determines whether a kitchen front fades within a year, whether a countertop survives a hot pan, and whether hardware needs repainting after the first wet wipe-down. When ordering furniture, doors or finishing materials from China, the coating is often reduced to a single spec line like “enamel, white gloss” — and that’s exactly where quality gets lost, because very different formulations can hide behind the same wording. Here’s a breakdown of the main paint and varnish types, so you can lock the right parameters into the contract instead of taking the factory’s word for it.
Acrylic (water-based) paints
The most common water-based coating for walls, ceilings and some furniture surfaces. Low VOC, no strong odor, a wide color range and an affordable price make acrylic the default for residential interiors. The downside is comparatively low abrasion and chemical resistance: acrylic coating on a kitchen front or windowsill loses its finish quickly without an added protective varnish. Good for walls and ceilings, weak for work surfaces and hardware exposed to daily contact.
Alkyd (oil-based) enamels
An alkyd-resin coating with an organic solvent, traditionally used on metal, radiators and budget-tier wood items. It forms a hard glossy film but yellows over time — especially in white and light tones — and holds up worse against UV without a stabilizer. Alkyd enamel is 1.5–2 times cheaper than polyurethane, which is exactly why it’s sometimes substituted without notice by less transparent factories — for white fronts and doors, this needs to be a separate, explicit line in the specification.
Polyurethane enamels and varnishes (1K and 2K)
The main standard for furniture fronts, doors and cabinetry in the mid-to-premium tier. Single-component (1K) polyurethane is easier to apply and cheaper; two-component (2K, with a hardener) delivers maximum hardness, chemical resistance and durability — 2K PU is what’s used for heavily used kitchen fronts and countertops. With a quality application of 2–3 coats, intermediate sanding and a UV stabilizer, service life without yellowing runs 10+ years. The key contract parameter is the hardener type (1K or 2K) and the presence of a UV stabilizer — not just the word “polyurethane” in the spec.
Epoxy coatings
Epoxy resin with a hardener produces the hardest, most chemically resistant coating of any common type — resistant to oils, acids, solvents and point impacts. Used on countertops, bar tops, poured floors and decorative surfaces (including 3D-effect designs and inlays). The downside is that epoxy is more brittle under flex than polyurethane and sensitive to prolonged direct UV exposure (it can yellow over time without a UV-resistant top coat), so outdoor items typically combine it with a protective polyurethane layer.
Nitrocellulose (nitro) lacquers
A fast-drying, single-component lacquer based on nitrocellulose — the classic finish for solid-wood furniture and musical instruments. It produces a thin, “breathable” film that highlights wood grain and is easy to spot-repair by local sanding. Its resistance to water, heat and chemicals is markedly lower than polyurethane or epoxy, so nitro lacquer is not suitable for kitchen countertops or damp rooms — its niche is decorative fronts, frames and furniture elements without heavy contact.
UV-cured coatings
An industrial coating that polymerizes in seconds under a UV lamp right on the production line — used on panel furniture, MDF fronts and laminated surfaces at large factories. It produces a very even, hard film with high scratch resistance, but requires factory equipment — this coating cannot be applied or repaired by hand on site, only replaced panel by panel. Worth factoring into the decision: UV lacquer is efficient for mass production but not for one-off furniture with complex geometry.
Outdoor coatings: yacht varnish and decking oils
Garden furniture, decking and facade elements use a separate category of coatings with UV filters and biocide protection against mold and fungus — ordinary interior varnish quickly clouds, cracks and loses adhesion under rain and sun. “Yacht” or marine polyurethane varnish holds its gloss outdoors for several seasons with regular top-coat renewal, while decking oils penetrate the wood without forming a film and are easier to refresh locally without full sanding.
Coating comparison table
| Coating type | Abrasion resistance | Moisture/chemical resistance | UV resistance | Typical use |
|---|---|---|---|---|
| Acrylic (water-based) | Low-medium | Medium | Medium | Walls, ceilings, decor |
| Alkyd enamel | Medium | Medium | Low without stabilizer, yellows | Metal, budget furniture |
| Polyurethane enamel (1K/2K) | High | High | High with UV stabilizer | Kitchen fronts, doors, furniture |
| Epoxy coating | Very high | Very high | Medium, needs a top UV coat | Countertops, poured floors |
| Nitro lacquer | Low | Low | Low | Solid wood, decorative furniture |
| UV-cured lacquer | High | High | Medium-high | Mass-produced MDF fronts, panels |
| Yacht varnish / oil | Medium | High (outdoor) | High (special UV filter) | Decking, garden furniture |
What to lock into the factory specification
- Binder and hardener type — polyurethane 1K/2K, epoxy resin, alkyd — not just the generic word “enamel” or “varnish.”
- Number of coats and presence of a UV stabilizer — especially for white and light finishes, where yellowing shows up fastest.
- VOC class — low volatile-compound content (typically up to 50 g/L for interior coatings) for residential projects.
- Intended use of the coating — interior or exterior; for decking and garden furniture, specify UV filtering and biocide protection separately.
- A physical coating sample — actual color and texture before the batch runs, not just a digital render or a Pantone number.
Coating type almost always pairs with the base material — see our guide on choosing between MDF, particleboard and solid wood for furniture at particleboard, MDF or solid wood, and on kitchen front types at kitchen cabinet door types. For broader principles on controlling finishing materials when sourcing, see sourcing building materials from China.
Ordering furniture or finishing materials from China and not sure how to verify what coating the factory actually applied? Send us your specification or brief — we’ll help lock the right enamel and varnish type into the contract, check a sample before the batch runs, and quote production and delivery to your site. Dream View’s fixed commission is 10% of the order value. Learn more about how we work on the China sourcing agent page.
Frequently asked questions
How does polyurethane enamel differ from acrylic paint in durability?
Polyurethane enamel forms a hard, chemically resistant film with abrasion resistance far higher than acrylic, and does not yellow when a proper UV stabilizer is used — it is the standard choice for furniture fronts and doors. Acrylic paint is softer, cheaper and easier to touch up locally, but holds up worse against impact and harsh household chemicals.
Which varnish should I choose for a kitchen countertop or bar top?
A two-component polyurethane (2K PU) or epoxy varnish — both resist hot cookware, water and household chemicals. A single-component nitrocellulose lacquer or ordinary acrylic varnish is not suitable for heavily used kitchen surfaces: it softens under heat and scratches easily.
What does VOC mean in a paint specification and why does it matter when sourcing from China?
VOC (volatile organic compounds) is the content of volatile organic compounds measured in g/L — a safety indicator for coatings used in living spaces. Your contract with the factory should specify low-VOC paint (typically up to 50 g/L for interior coatings); otherwise the item may keep off-gassing for weeks after delivery due to a strong odor.
Why does white enamel on furniture sometimes turn yellow after a year or two?
Yellowing comes from cheap alkyd enamel without a UV stabilizer, or from a single thin coat instead of the required 2–3 coats with intermediate sanding. For white and light-colored fronts, the specification should call out polyurethane enamel with a UV stabilizer specifically — it costs more but prevents claims a year into use.
Do outdoor decking or garden furniture need a special varnish?
Yes — exterior surfaces need a varnish or stain with UV filters and biocide protection against mold, since ordinary interior polyurethane varnish quickly clouds and cracks in sun and rain. This is a separate category ("yacht varnish" or decking oils) that should be a separate line item in the spec for outdoor furniture and decking.
Can different coatings be combined — enamel on the fronts and varnish on solid wood inside?
Yes, this is standard practice: opaque enamel goes on MDF fronts, while clear varnish goes on solid wood and veneer where the grain should show through. The one thing to watch is hardener compatibility (for example, applying nitrocellulose lacquer over polyurethane enamel that has not fully cured) — the factory should confirm layer compatibility in the specification.