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Bangkirai oil buying guide: shade, size and coverage

Updated: October 2026

You have measured a yellow-balau deck, but the search results show natural oil, dark oil, teak oil, food-safe oil and four pack sizes. A useful bangkirai oil buying decision starts by removing the wrong product types, then choosing shade and calculating the quantity for two coats. Our [bangkirai oil comparison](/hub/paints-and-varnishes/bangkirai-oil) shows the captured amazon.co.uk tins side by side; this guide explains the order in which to choose. By the end, you should know whether you need Osmo 006 or 016, a sample or a working tin, and which claims the listings do not support.

You have measured a yellow-balau deck, but the search results show natural oil, dark oil, teak oil, food-safe oil and four pack sizes.

Our top picks

Osmo Osmo 006 Bangkirai Satin 2.5 L

Best overall

Osmo Osmo 006 Bangkirai Satin 2.5 L
9.4/10about £72.31
View offer
Osmo Osmo 006 Bangkirai Oil 0.75 L

Alternative

Osmo Osmo 006 Bangkirai Oil 0.75 L
7.4/10about £23.82
View offer
Osmo Osmo 016 Bangkirai Dark 2.5 L

Best value

Osmo Osmo 016 Bangkirai Dark 2.5 L
8.0/10about £72.31
View offer
On this page
  1. 1.What counts as bangkirai oil
  2. 2.Choose 006 or 016, then the pack size
  3. 3.Calculate litres against the stated rate
  4. 4.Claims the tin does not make

What counts as bangkirai oil

For this job, bangkirai oil means a pigmented, penetrating exterior decking oil intended for bangkirai or balau. It is not chopping-board oil, a general indoor furniture oil or a film-forming window varnish. It is also not automatically the same as any product labelled teak oil. Osmo 007 Teak Oil is a clear option in the same range, but Osmo says a clear finish gives little protection against greying; choose it only if that ageing effect is what you want. Start with the timber named on your invoice. UK merchants commonly sell this dense tropical decking as yellow balau, while bangkirai is the trade name often used for the same timber in Indonesia and Malaysia. Osmo identifies colour 006 as optically suitable for bangkirai and balau, with 016 providing the darker alternative. If you want more context on the species and the waiting period before treatment, read the yellow balau decking guide.

Choose 006 or 016, then the pack size

Osmo 006 is the natural bangkirai shade: it adds warm pigment while allowing the character of the timber to remain visible. Osmo 016 is Bangkirai Dark and gives a deliberately deeper result. Neither shade is colourless, and neither can freeze the timber permanently at its freshly laid colour. Osmo's UK guidance says darker pigment slows greying more than a lighter or clear coating, but that is not a promise that 016 will stop weathering. The working sizes are 750 ml and 2.5 litres. The captured 750 ml 006 tin was £23.82, while each captured 2.5-litre listing was £72.31. That makes the larger tins about £28.92 per litre compared with about £31.76 per litre for 750 ml, but lower unit cost does not make the oil better. Buy the quantity that fits the measured job and leaves a sensible margin, not the tin with the most attractive unit price. The 006 or 016 comparison focuses on the shade difference.
Osmo Osmo 006 Bangkirai Satin 2.5 L

Testsieger

Osmo Osmo 006 Bangkirai Satin 2.5 L
9.4/10about £72.31
View offer

Calculate litres against the stated rate

Osmo UK states about 24 m² per litre for one coat on smooth wood and specifies two thin coats on bare timber. A simple planning estimate therefore divides the deck area by 24 and doubles the result. For a smooth 12 m² deck, that gives roughly 1 litre for two coats before allowing for losses, end grain or an absorbent surface. A 750 ml tin would be too tight for that example, whereas 2.5 litres provides a workable margin. The captured 750 ml Amazon listing states 24 m² per litre, two coats, drying in 8–10 hours and application from +5°C to 35°C. Osmo UK's current product guidance instead gives an ideal air temperature of +10°C to 35°C and about 12 hours' drying at 23°C and 50% relative humidity. Follow the current UK product sheet and the label on the tin when figures conflict.

Claims the tin does not make

The captured Osmo listings support a pigmented, water-repellent exterior finish, but not insect control, rot treatment or a tested slip-resistance value. Osmo's safety statement applies once dry and is not a food-contact claim. Grooved decking is not automatically non-slip, and the PTV 36 criterion associated with BS 7976-3 concerns enhanced-grip boards, not these tins. Finally, keep brands and formulas separate. Treatex coverage, moisture and temperature figures cannot be copied onto an Osmo tin. The right decision rests on timber, shade, quantity and the manufacturer's current instructions.

Common questions

Is bangkirai oil the same as teak oil?
No. In this range, 006 and 016 are pigmented shades associated with bangkirai and balau, while 007 Teak Oil is clear. Osmo says the clear option gives little protection against greying, so it suits a different visual aim.
Is a 5 ml sachet enough for decking?
No. A 5 ml sachet is a colour sample for one or more small, inconspicuous test areas. Use your measured deck area and a two-coat allowance to choose a 750 ml or 2.5-litre working tin after approving the shade.
How much oil do I need for two coats?
Using 24 m² per litre for one coat, divide the smooth-board area by 24 and multiply by two. Add a margin for ribbed, rough or absorbent timber because it can use more. Treat the result as planning guidance, not guaranteed consumption.
Does bangkirai oil kill insects or stop rot?
The captured oils do not make either claim. A pigmented decking oil manages appearance and surface water repellency; it is not automatically a regulated insecticide, fungicide or structural repair for decayed timber.
Are the 138 Amazon ratings a UK review sample?
Not from the stored evidence. The 138-rating line appears on two captured listings, while the saved review bodies are shared between pack sizes and come from Germany, France and the Netherlands. They should not be presented as UK customer testimony.

Related pages

How to apply bangkirai oil

Best bangkirai oil

Bangkirai oil

Osmo 006 or 016: the natural or dark bangkirai oil

Yellow balau decking oil and bangkirai name explained

Sources

Public UK sources for the timber, the coating class and the solvent points. Prices, stars and review counts are the captured amazon.co.uk lines, not a live check on 15 October 2026.

  1. Osmo UK — Decking-Oil (retrieved 15 October 2026)
  2. Osmo UK — Decking oils product information (retrieved 15 October 2026)
  3. The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2012, Schedule 2 (retrieved 15 October 2026)
  4. HSE — Solvents (retrieved 15 October 2026)
  5. TDCA — Deck finishes (retrieved 15 October 2026)
  6. Brooks Timber — decking sheet (retrieved 15 October 2026)
  7. Southgate Timber — Osmo 006 bangkirai decking oil (retrieved 15 October 2026)
  8. Consumer Rights Act 2015, section 9 (retrieved 15 October 2026)