0.25L
Covers
15–25 sq ft
3 coats, absorbent wood
Best For
Touch-ups, spot repairs, and sample swatches before full spec.
INTERIOR WOOD FINISH · ART. 259
One oil that primes and finishes wood, cork, tile and OSB.
LEINOS 259 Hard Oil Universal — EN 71-3 tested and biocide-free. Linseed and heat-bodied wood-oil stand oils harden inside the pore, so a single tin primes and finishes every absorbent interior surface: wood floors, cork, stairs, unglazed tiles and OSB.
Wood · cork · tile · OSBToy-safe (EN 71-3)VOC 460 g/lMade in Germany
Ready-Mix Shades
Available Shades
9 ready-mix shades — from Colourless through Pine, Walnut and Amber to Grey and Black. Custom NCS or RAL tinting available at our Delhi lab.
002
Colourless
022
Pine
062
Walnut
092
Chestnut
101
Double White
142
Amber
202
White
212
Grey
307
Black
Wood is a living material — actual colour depends on species, grain density, and substrate age. Each shade you see here is a reference. Our specialists confirm the final match with you before specification.
Beyond the Standard Range
Custom NCS or RAL tinting at our Delhi lab — any architectural reference matched across the full colour palette. Bring the spec, take the shade home.
Light, absorbent substrates can dry a touch darker, and each timber “fires up” differently by grain — a test-coat with colour match is essential. Colourless (002) adds water-repellency and enriches the grain without adding a tint.
Mechanism & Use
How LEINOS 259 Hard Oil Universal works.
Penetrating oil-resin finish with heat-bodied stand oils that harden inside the surface — one oil that primes and finishes wood, cork, tile and OSB, EN 71-3 tested for interior and children’s-room use.
01
Penetration
Linseed and heat-bodied wood-oil stand oils soak into the open pore. No surface film to scuff or peel.
02
Hard cure
Natural resin cross-links the bodied oils into a hard-wearing matrix inside the fibre.
03
Breathability
Open-pore finish lets wood, cork, tile and OSB stay vapour-permeable and water-repellent.
04
Universal & child-safe
One oil primes and finishes wood, cork, stairs, unglazed tiles and OSB — EN 71-3 tested and DIN 53160 saliva/sweat-fast.
Where It Lives
Where 259 lives
Wood floors, stairs & landings
High-traffic floors, staircases and landings that need a hard-wearing, non-film finish.
Furniture, shelving & joinery
Tables, cabinets and built-ins that stay open-pore and spot-repairable.
Children’s-room furniture
EN 71-3 tested and biocide-free — cots, toy boxes and kids’ furniture.
Cork floors & wall tiles
Absorbent cork that needs water-repellency without sealing the surface.
Unglazed clay, terracotta & stoneware tiles
Traditional Indian terracotta and unglazed stoneware — water-repellent, still breathing.
Sterling OSB & heavy-wear zones
OSB boards, hallways and worn-traffic areas where a film finish would scuff and peel.
Compliance · DIN · EN · EU
Lab-tested. Institution-verified.
Five anchors that let architects specify 259 across interior wood, cork, tile and OSB — including children’s-room surfaces — without disclaimers.
Children’s-Furniture Safe
EN 71-3
Migration of elements within EN 71-3 limits — specifiable for children’s-room furniture.
Institutional Pledge
InVeNa Member
Reincke Naturfarben — full-ingredient-disclosure pledge for natural building products.
Unlike film finishes that scuff, chip and peel on high-traffic interior surfaces, 259 bonds inside the surface and renews with a single brush coat — no sanding, no stripping. Full maintenance protocol in the TDS; the EN 71-3 and DIN 53160 test summaries are available to architects and contractors on request via Get Expert Advice.
Read The Full TDSStep by Step
How to Apply
Prepare the substrate — dry, solid, clean, grease- and dust-free, and absorbent. Pre-sand wood with 150–180 grit in the direction of the grain. Remove any old film coating (PU, lacquer, varnish) or wax first — 259 needs an open, absorbent surface to penetrate.
Stir thoroughly and check conditions — stir 259 well before use (natural oils and pigments settle in storage); ready to use, do not thin. Keep room and surface temperature above 15 °C throughout application and drying.
First coat — priming coat — brush, roll, spray or dip a thin, even coat with a sealing roller into the absorbent surface. Let it soak into the open pore; the tone deepens and the grain is enriched as the oil penetrates. Coverage approx. 180–270 sq ft per litre per coat.
Second and third coats — 259 is a three-coat system. Apply the second and third thin coats with a sealing roller, allowing 6–8 hours drying between each coat. No intermediate sanding is needed.
Remove any excess — surplus and overhangs must be avoided or wiped off with a lint-free cloth, leaving a dry, open-pore silky-matte finish. Any oil left standing on the surface stays tacky.
Dry, cure and care — dust-dry in approx. 6–8 h; foot-traffic safe after 16–24 h with good air circulation (a fan speeds drying and reduces odour). Maintain and refresh with LEINOS 285 Oil Refurbisher. Store oil-soaked cloths in a sealed metal container or under water — spontaneous-combustion risk.
Coats & Recoating
- Apply 3 uniform thin coats with 6–8 hour intervals. No intermediate sanding required.
Cleaning & Storage
- Immediately after use, clean tools with LEINOS Thinner 200.
- Store in a dry and cool place, protect from freezing. Shelf life in closed packaging is at least 2 years.
First time with Hard Oil Universal? Our technical team runs complimentary on-site walkthroughs for contractors — full application protocol, start to finish.
System & Substrates
Primer and topcoat in one — no separate primer, no intermediate sanding.
One self-priming oil on absorbent interior surfaces — a priming coat, then two finish coats of the same 259, so there is no separate primer to buy and no sanding between coats. Maintain and refresh with 285 Oil Refurbisher.
The Coating System
The same 259 in both roles — a priming coat, then the finish coats.
Priming Coat259Hard Oil Universal
Finish Coats259Hard Oil Universal
Long-term Care
Extends the life of the finish over the years.
Substrate Fit
259 works on — and what it doesn’t.
Suitable
Recommended substrates
- Solid softwood and hardwood
- Wood floors, stairs and furniture
- Cork floors and wall tiles
- Unglazed clay, terracotta and stoneware tiles
- Sterling OSB boards
- Children’s-room furniture (EN 71-3 tested)
Honest Limits
Where to use a different product
- Exterior wood, decks and garden furniture — use LEINOS 223 Teak Oil
- Waxed surfaces — remove all wax completely first; 259 needs an open, absorbent surface to penetrate.
- Painted, lacquered or PU-sealed surfaces — sand off any film coating first.
- Glazed or sealed tiles — 259 only penetrates unglazed, absorbent clay and stoneware.
Use With Care
Working safely with 259
- Harmful to aquatic organisms with long-term effects; avoid release to the environment.
- Oil-soaked rags and sanding dust are spontaneous combustion hazards — store in a sealed metal container or under water until disposal.
- Repeated skin contact may cause dry or cracked skin.
- Store away from children. If swallowed: seek medical advice immediately; do not induce vomiting.
- Wear approved respiratory protection when spraying, and a particulate dust mask when sanding.
Coverage & Pack Sizes
Pick the right pack for the surface.
Coverage on the card assumes three coats on absorbent interior surfaces. Variation depends on substrate density and absorbency.
0.75L
Covers
45–70 sq ft
3 coats, absorbent wood
Best For
A single piece of furniture, a flight of stairs, or small cork or tile areas.
2.5L
Covers
150–225 sq ft
3 coats, absorbent wood
Best For
A standard room floor — the most-specified interior size.
10L
Covers
600–900 sq ft
3 coats, absorbent wood
Best For
Whole-home floors, large cork, tile or OSB areas, contract projects.
sq ft
Enter your area to see how much material — and the most efficient pack mix — you’ll need for 3 coats.
Documented Applications
See this product in real projects
Recent projects finished with Hard Oil Universal. Factual captions, real footage — no staged photography.
Full Declaration
Composition
Every ingredient declared on the label. The Trust Hub explains what each one does and the standards behind it.
Linseed & Stand Oils
The penetrating body. Cold-pressed linseed (flax) is the LEINOS signature drying oil; alongside it, heat-bodied wood-oil (tung) and castor stand oils are pre-polymerised, building a tougher, harder-wearing film than raw oils. All plant-derived — they polymerise with oxygen and bond inside the surface.
Natural Resin (Rosin Ester)
Pine-derived natural resin ester. Cross-links the cured oils into a hard-wearing matrix inside the fibre — the “resin” in the brand’s oil-resin chemistry, and the “hard” in Hard Oil.
Isoparaffin Carrier
Plant-derived isoparaffin solvent carrier. It thins the oil for even penetration and evaporates fully on cure, leaving the oil-resin matrix bonded in the surface.
Driers
Trace metal siccatives that speed the oxidative polymerisation of the drying oils so the three coats cure on schedule.
Mineral Pigments (tinted shades)
Earth and mineral pigments give the nine factory tones; the Colourless (002) base contains none. There is no IPBC and no biocide of any kind — 259 is biocide-free, since interior surfaces do not face the blue-stain fungi that attack exterior timber.
Got Questions?
Frequently Asked
Quick answers on formulation, application and Indian-climate suitability. Pulled from our full FAQ and TDS library.
- Apply 3 uniform thin coats with 6–8 hour intervals. No intermediate sanding required.
- It depends on the existing finish. Synthetic coatings must be fully removed. Old natural oil finishes can often be recoated after light sanding.
- Allow full curing time as specified in the product TDS, typically 7-14 days for full hardness, though the surface may be touch-dry much sooner.
- Check the specific product TDS for food contact suitability. Many LEINOS interior wood oils are safe for food contact once fully cured.
- All three are LEINOS interior penetrating oils on the same 9-shade tinting system. 259 Hard Oil Universal is the cross-material one — a single tin primes and finishes wood, cork, stairs, unglazed clay and stoneware tiles, and Sterling OSB, and it is EN 71-3 and DIN 53160 tested for heavy-use and children’s surfaces. 240 Hard Oil is the tintable wood-floor workhorse. 241 Hard Oil Clear uses non-yellowing safflower oil to keep pale woods (maple, ash, white oak) close to their natural tone. For a mixed-material interior or an OSB or tile floor, choose 259; for a tinted wood floor, 240; to keep pale wood pale, 241.
- Yes. Per the manufacturer TDS, 259 primes and finishes all absorbent, heavily-used interior surfaces — wood and cork floors, stairs, unglazed clay and stoneware tiles, Sterling OSB boards and furniture. The one rule is that the surface must be absorbent: 259 penetrates and hardens inside the pore, so it will not bond to glazed tiles, sealed or lacquered surfaces, or anything non-absorbent.
- No. 259 is priming coat and topcoat in one — you apply three thin coats of the same oil with a sealing roller, 6–8 hours apart, with no separate primer and no intermediate sanding. That is what makes it “Universal”. For ongoing care, refresh with 285 Oil Refurbisher.
For Architects & Specifiers
Downloads
Technical and safety documents — citable in project specifications.
Need a Recommendation?
Talk to LEINOS
Four ways to reach our India team — pick the one that fits how you work.
Written by the LEINOS India technical team, in collaboration with
Reincke Naturfarben R&D, Lower Saxony.
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