Care & Maintenance
Staining & Refinishing Guide
Updated 3 min read
The short answer
Refinishing makes sense when the existing wood is structurally sound and the only issue is the colour or the surface condition. It does not fix structural problems, water damage or poor construction. In Calgary's dry climate, the most important step is sealing all faces equally — uneven sealing causes the same cupping and joint problems that affect new work.
The refinishing process
These steps apply to staining raw or previously finished wood. Paint removal has additional steps not covered here.
- Assess whether refinishing is appropriateSolid wood and quality veneer can be refinished. MDF cannot be stained (it has no grain to show). Particleboard with a laminate face cannot be refinished at all. If the substrate is sound, proceed.
- Remove the existing finishChemical stripper is the least destructive method. Sanding works but removes material and risks round-over on edges. Heat guns work on thick finishes but can scorch wood. Choose based on the finish type and the delicacy of the piece.
- Sand progressivelyStart at 120-grit to remove the old finish and level the surface, then move through 150 and 180 for a smooth base. Always sand with the grain, never across it. Swirl marks from a random-orbit sander show immediately under stain.
- Remove all dustTack cloth after every sanding pass. Compressed air in profiles and crevices. Any dust remaining will be permanently embedded in the stain and visible as lighter specks.
- Apply pre-stain conditioner (if needed)Softwoods (pine, fir, poplar) and some hardwoods (maple, cherry) absorb stain unevenly. A pre-stain conditioner partially seals the grain so the stain absorbs more uniformly. Apply 15–30 minutes before staining.
- Apply stain in thin coatsWipe on with a lint-free cloth, working in the direction of the grain. Allow to penetrate for the time specified by the manufacturer, then wipe off the excess. Multiple thin coats are better than one heavy coat.
- Apply topcoatStain provides colour, not protection. A clear topcoat — polyurethane, lacquer or conversion varnish — protects the surface. Apply 2–3 thin coats, sanding lightly between coats with 320-grit.
Stain types compared
| Type | Ease of use | Colour range | Drying time | Best for |
|---|---|---|---|---|
| Oil-based penetrating | Easy | Limited to wood tones | Slow (8–24 hrs) | Furniture, shelving, trim |
| Water-based penetrating | Moderate | Wider range | Fast (2–4 hrs) | Interior projects, low odour |
| Gel stain | Very easy | Limited | Moderate | Vertical surfaces, dark stains |
| Oil-based paint stain | Moderate | Unlimited | Slow | Blocking, tinting |
| Reactive stains (ebony) | Advanced | Natural tones | Varies | Fumed oak effect, speciality |
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When NOT to refinish
- The wood is MDF or particleboard
- MDF has no grain to stain and will absorb stain unevenly, producing a blotchy, dark mess. Particleboard with laminate cannot be refinished at all — the substrate is not wood.
- The finish is failing due to moisture
- If the existing finish is peeling, bubbling or flaking in a pattern that suggests moisture underneath, the moisture problem must be resolved first. Refinishing over moisture traps the problem and guarantees it returns.
- The wood is damaged structurally
- Warping, splitting, delaminating veneer or deep gouges are structural issues that refinishing does not address. These require repair or replacement.
- The piece is particleboard with a thin veneer
- Most flat-pack furniture has a veneer too thin to sand through without hitting the substrate. A careful test sand in an inconspicuous area tells you quickly.
Answers
Frequently asked questions
- Can I refinish my kitchen cabinets?
- If the doors and drawer fronts are solid wood or quality veneer, yes. Remove them, strip the existing finish, sand, stain or paint, and re-install. MDF doors cannot be stained but can be repainted. The boxes (carcasses) are usually melamine or plywood and are not refinished — they are repainted or left as-is.
- How long does refinishing take?
- A small piece (side table, shelf) takes 1–2 days including drying time. Kitchen cabinets take 2–4 weeks when you include removal, stripping, sanding, finishing and re-installation. The drying time between coats is the critical factor and cannot be rushed without compromising the finish.
- What is the best finish for refinished furniture?
- For a natural look: hardwax oil or a wiping varnish (thin polyurethane). For maximum durability: catalysed lacquer or conversion varnish, but these require spray equipment. For simplicity: waterborne polyurethane, which dries fast and stays clear.
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