The right wood finish depends on the look and the wood: a varnish for a hard, glossy protective film, or a penetrating oil that feeds the timber and is easy to maintain. Rhinoluxe makes Glossy Wood Copal Varnish for a durable high-gloss finish on interior and exterior wood, and Premium Wood Oil as the penetrating oil for decks, furniture and new timber. This guide explains varnish versus oil versus stain, which to use where, and how to apply and maintain each.
What does varnish do for wood?
Varnish forms a hard, clear protective film on the surface of the wood that seals it against moisture, wear and ultraviolet (UV) sun while showing off the grain. Unlike a paint, it is transparent (or lightly tinted), so the timber's natural figure stays visible under a glossy, wipeable coat. Glossy Wood Copal Varnish is a high-build varnish that gives that tough, lustrous film on doors, furniture, window frames and outdoor timber, protecting the wood and lifting its appearance at the same time.
Varnish, oil or stain: which should you use?
Choose a varnish for a hard glossy film, an oil for a natural feed-and-protect finish, and a tinted product where you also want to change the colour. Use this table:
| You want… | Use | Why |
|---|---|---|
| A hard, glossy, wipeable film | Wood Copal Varnish | High-build surface film, protective and lustrous |
| A natural feed-and-protect finish | Premium Wood Oil | Penetrates and nourishes; easy to maintain |
| New wood that needs feeding | Premium Wood Oil | Feeds the timber; preferred on new wood |
| Decks & outdoor timber | Premium Wood Oil | Flexes with the wood, easy to recoat |
| To change the colour (stain effect) | Tinted Copal Varnish or Wood Oil | Teak / Mahogany / Dark Oak tints add colour |
Is it better to varnish or oil wood?
Varnish gives a harder, glossier, more wear-resistant film; oil gives a natural, easy-to-maintain finish that feeds the wood and does not peel. A varnish sits on top of the timber as a tough coat, which is ideal for a glossy door, a table top or handrails that take handling. An oil soaks in and protects from within, so it never peels or flakes and is simple to top up — the practical choice for decks and new timber. The full comparison is in our guide to wood oil vs varnish.
When should you use Wood Copal Varnish?
Use Wood Copal Varnish where you want a hard, high-gloss, protective film: doors, furniture, window frames, skirtings and outdoor timber that needs a durable clear coat. Glossy Wood Copal Varnish builds a thick, lustrous film that seals the wood and stands up to handling, cleaning and weather. It comes in Clear plus Teak, Mahogany and Dark Oak tints, so you can keep the natural look or warm the colour while you protect. It is the answer for anyone searching for a classic, glossy wood varnish.
When should you use Premium Wood Oil?
Use Premium Wood Oil on new timber, decks, garden furniture and any wood where you want a natural, breathable, feed-and-protect finish rather than a glossy film. Premium Wood Oil penetrates and nourishes the timber, giving UV protection and a warm, natural look that does not peel or flake and is easy to refresh. Because it feeds the wood, it is the preferred finish on new wood, and its flexibility makes it the standard for decks and outdoor furniture. See the wood oil guide.
What is the best finish for a deck?
The best deck finish is a penetrating wood oil, because it flexes with the timber, will not peel underfoot, and is easy to recoat as it wears. A deck moves, gets walked on and takes full sun and rain, which cracks and lifts a hard film over time. Premium Wood Oil soaks in and protects from within, so a worn deck just needs a clean and a fresh coat rather than sanding back peeling varnish. For coastal decks in particular, oil is the low-maintenance, long-term choice — see the guide to protecting outdoor wood in coastal weather.
How do you seal wood?
You seal wood either with a penetrating oil that soaks in, or with a surface film like varnish — both keep moisture out, but in different ways. A penetrating Premium Wood Oil seals from within and is the easiest to maintain; a Wood Copal Varnish seals with a hard clear film on top. Bare, weathered or new timber must be clean, dry and lightly sanded before sealing so the finish grips and penetrates evenly. The full method is in the wood sealer guide.
How do you apply wood varnish?
Apply varnish to clean, dry, sanded wood in thin, even coats along the grain, sanding lightly between coats for a smooth, glossy finish. Sand the timber smooth, wipe off the dust, and brush Wood Copal Varnish in the direction of the grain, laying off in long strokes so it flows out level. Let each coat dry, sand lightly to key the surface, and apply two to three coats for a full, hard-wearing gloss. Thin coats flow smoother and build a tougher film than one heavy coat.
How do you apply wood oil?
Apply wood oil to clean, dry, sanded timber, flooding it on and letting it soak in, then wiping off any excess before it gets tacky. Brush or wipe Premium Wood Oil generously along the grain, give it time to penetrate, and wipe back the surplus so it does not sit sticky on the surface. A second coat once the first has soaked in deepens the protection. Unlike varnish, oil needs no sanding between coats, which makes it quick and forgiving to apply and to refresh later.
How many coats of varnish or oil do you need?
Varnish usually needs two to three thin coats for a full gloss; oil usually needs two coats, with more on very thirsty new or exterior timber. Each varnish coat builds the film and the shine, so three coats give the hardest, glossiest result on a door or table. Oil is about saturation rather than build — you keep coating until the wood stops drinking it in, which is often two coats indoors and more on a hungry new deck. Let each coat dry to the recoat time before the next.
When should you re-seal or recoat wood?
Recoat when the finish starts to dull, the wood begins to feel dry, or water no longer beads on the surface — sooner on sun-exposed and coastal timber. An oiled surface is easy: clean it and apply a fresh coat, no stripping needed. A varnished surface that has started to crack or peel needs sanding back to sound timber first. Catching it early — a maintenance coat before the wood greys or the film fails — is far less work than a full restoration. See when and how to re-seal wood.
Wood finish colours
Both the varnish and the oil come in Clear plus Teak, Mahogany and Dark Oak, so you can keep the natural grain or warm and deepen the colour. Clear keeps the timber's own tone; the tints act like a stain-and-protect in one, adding warmth and evening out colour on mixed or pale wood. For a colour-change on furniture, a tinted finish is the simple route — see the guide to staining and varnishing furniture.
Sizes and cost
Wood Copal Varnish and Premium Wood Oil come in 5 litre (L) and 20 L, plus smaller sizes for a piece of furniture. Compare on covered area over the coats each needs rather than the tin price. For current pricing, see the product pages or the full price list.
Where to buy wood varnish and oil in South Africa
Shop Glossy Wood Copal Varnish and Premium Wood Oil with national delivery, or visit our paint shops in Table View, Cape Town and Edenvale, Johannesburg. For trade pricing and advice, call +27 84 985 6141.
