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Painted vs. Thermofoil vs. Laminate Cabinet Doors: Which Finish Survives a Family
Kitchen Cabinets
Painted, Thermofoil or Laminate Doors: Which Finish Is Still Presentable After Ten Years of Dinners
Every white kitchen in Ontario is one of four finishes, and from across the room you cannot tell which. From up close, after a decade, you can. One has peeled by the dishwasher. One has a chip at the corner where the pot hit it. One has a hairline at every joint. One looks the way it did on day one and nobody is sure why. This is which is which.
The four finishes
| Finish | What it is | Cost vs. painted | How it fails | Can it be fixed? |
|---|---|---|---|---|
| Painted MDF | MDF door, primed and sprayed in a booth with a catalyzed lacquer or conversion varnish. Any colour. | baseline | Chips at corners and edges from impact. Wears at the pulls. Can yellow slightly if it is a cheap lacquer. | Yes. Touch-up pen, or a door can be re-sprayed. A good shop keeps your colour. |
| Thermofoil | MDF door wrapped in a vinyl film, heat-pressed on. Seamless, usually white or light. The look of paint at a lower price. | 20 to 30% less | The film delaminates from heat: beside the range, above the dishwasher vent, over the toaster. Once it lifts it keeps lifting. | No. A lifted door is a replaced door, and the colour has usually changed. |
| Laminate (HPL) | A high-pressure laminate sheet glued to a core, with a separate edge band. Wood grains, solids, textures. | similar | Edge band comes loose with age and moisture. Face is nearly indestructible. Visible seam at the edge. | Edge band can be re-glued or replaced. Face damage cannot. |
| Melamine | A paper-and-resin skin pressed onto particleboard. The budget version of laminate. What stock boxes are made of. | 40% less | Chips at the edges and the chip shows brown board underneath. Edge band lifts. | Not well. Edge chips are permanent. |
Painted: the Ontario default, with one honest caveat
Nine in ten kitchens going into Ontario houses right now have painted doors, and most are MDF shaker. A factory-sprayed finish, two coats of catalyzed lacquer or conversion varnish over a primed MDF door, is hard, smooth, cleanable and will take fifteen years of a family without complaint. The caveat is the corners. Paint on MDF chips where it is hit: the outside corner of the trash pull-out, the bottom corner of the door the dog pushes open, the edge beside the dishwasher handle. Chips are small and they are fixable, and every good shop will give you a touch-up kit in your colour if you ask.
What is not the default and should not be: painted solid wood doors. Wood moves with the seasons, the joints between the rails and the centre panel open a hair every winter, and the paint cracks along every joint. It is not a defect; it is wood. If you want the warmth of real wood, stain it. If you want paint, buy MDF.
Thermofoil: what it is good for and where it dies
Thermofoil is a vinyl skin vacuum-pressed onto a routed MDF door, and when it is new it is hard to tell from paint, which is the whole idea. It is seamless, it wipes clean, and it costs a fifth to a third less. Builders of new subdivisions love it, and for ten years in a dry, cool kitchen it is fine.
Then it meets heat. The door beside the range, the upper above the kettle, the one over the dishwasher vent, the panel beside the wall oven. Heat softens the glue, the vinyl lifts at an edge, and once it lifts it never goes back. The fix is a new door, and by then the manufacturer has changed the shade of white, so the new door does not match. I have replaced whole runs of uppers for this reason. If you buy thermofoil, keep it away from heat, buy two spare doors in the first order, and keep them in the basement.
Laminate and melamine: the ones that are underrated and overrated
High-pressure laminate is underrated. It is the same material as a laminate countertop, bonded to a core, and the face is nearly impossible to chip, scratch or stain. The textured wood-grain laminates that came out of Europe in the last decade are the best fake wood ever made and some of the most durable doors you can buy. The weakness is the edge: a separate band, glued on, that can lift with age and moisture. A shop that uses a laser or PUR edge bander, which fuses the band without a visible glue line, has solved most of that. Ask.
Melamine is overrated by its price. It is the same idea as laminate with a thinner, weaker skin on particleboard, and it chips at every edge to a brown core that cannot be hidden. It is what the cheapest stock doors are made of and what every cabinet box interior is made of, where it is fine, because nothing hits the inside of a box.
Which finish for which kitchen
- Family kitchen, twenty years, any colour: painted MDF, factory sprayed, with the touch-up kit in the drawer.
- Rental, flip, basement suite, white, under $12,000: thermofoil, with spare doors, and keep the toaster away from the uppers. Or melamine stock and accept the edges.
- Wood look without the wood price or the seasonal movement: textured laminate from a shop with a good edge bander. Pick a sample, scratch it with a key, and watch nothing happen.
- Real wood: stain it, never paint it, and let it move.
- High gloss: acrylic or a polyester finish, both expensive, both show every fingerprint, both are for people who like to wipe things. A separate question for a separate day.
The door finish is one line on the quote and worth having in writing, next to the box material. The quality checklist covers both; the cost guide has what each one does to the price.
Questions people ask
Does thermofoil peel?
Beside heat, yes, almost always eventually: the range, the dishwasher vent, the toaster, a wall oven. Away from heat it can last fifteen years. A peeled door cannot be repaired and the replacement rarely matches.
Do painted cabinets chip?
At the corners and edges, from impact, yes. A factory-sprayed finish chips less than a site-painted one, and chips can be touched up. Painted MDF chips less than painted wood because MDF does not move.
Can I paint thermofoil cabinets?
If the foil is still fully bonded, with a bonding primer and patience, and the result lasts a few years. If the foil is lifting anywhere, no; paint will not hold it down.
What is the most durable cabinet door finish?
Textured high-pressure laminate with a fused edge for sheer toughness. Factory-sprayed painted MDF for the best balance of looks, repairability and price. Both will outlast the hinges.
Why do painted wood doors crack at the joints?
Because wood expands and contracts with humidity and the paint cannot stretch. The crack is at the joint between the frame and the centre panel, every winter, on every painted wood door in Ontario. It is not a defect and no shop will warranty it. Buy MDF for paint.
The short version
Paint on MDF for the house you live in. Thermofoil away from heat for the house you rent out. Laminate if you want wood without the wood. And a touch-up kit in a drawer, whichever you choose, because something will hit a corner by Christmas.
