Terrace Wood Oil
Penetrating oil-resin finish for exterior wood, designed for terraces, decking, and outdoor timber.
View product detailsWood Surfaces · Solutions
Exterior Terraces & Decking
A teak rooftop deck in Mumbai, a sheesham terrace under a Bangalore garden chajja, a bangkirai pool surround on the Goa coast — exterior walkable timber earns its life in the brutal Indian outdoor reality: monsoon RH 80–95% with standing rain pooling on horizontal boards, UV greying within 12 months on untreated tropical hardwood, salt-air corrosion on coastal decks. Two LEINOS oils are documented for that reality, split by wood species: Terrace Wood Oil 236 for softwood and standard hardwood (cedar, pine, sheesham, mango), Teak Oil 223 for dense tropical hardwoods (teak, Burma teak, bangkirai, ipe). Both tested with built-in IPBC sapstain protection.
ExteriorSingle Layer2 compatible products
- Water-repellent through monsoon RH 80–95%
- UV-resistant — IPBC sapstain protection (Goa/Mumbai coastal)
- Re-oilable forever — no stripping, no sanding
- Vapour-permeable — moves with the timber through summer/monsoon swing
Find your application
Pick the substrate. We'll show what fits.
Residential rooftop or patio deck — horizontal, open-sky UV exposure. Mumbai high-rise rooftop teak, Bangalore garden sheesham, Goa beachfront bangkirai. Wood species decides the product: dense tropical hardwood → Teak Oil 223 (deep impregnation, 1–2 coats); softwood, cedar, pine, sheesham → Terrace Wood Oil 236 (2 coats wet-on-wet OR 3 thin coats). Sand P80–P100. Indian climate re-oil cycle: ~12 months on horizontal boards vs European ~24 months. UV-greying within 12 months on untreated tropical hardwood is normal.
2 compatible productsTeak Oil
Penetrating oil-resin treatment for tropical hardwood furniture and weathered exterior timber — refreshable without sanding.
View product detailsSystem & Substrates
Two penetrating oils, one per wood species. Mixed-substrate decks take both.
For weathered or greyed boards, pre-treat with Anti-Greying Fluid 940 (see Care: Exterior Terraces & Furniture). Daily cleaning with Vegetable Soap 930.
The Coating System
Primer plus topcoat — the full chain.
Topcoat Options
Choose the finish character; the primer underneath stays the same.
Long-term Care
Extends the life of the finish over the years.
Step by Step
How to Apply
Pressure-wash, then dry 48–72 h
Pressure-wash the deck to lift dirt, algae, mould spots, and post-monsoon biofilm. Use plain water at moderate pressure (1500–2000 PSI) — high pressure shreds the soft summer-grain. Let the deck dry 48–72 h before any oiling — measure moisture with a pin meter on the underside of a plank, must read ≤16% before oil goes on. Mumbai/Goa coastal decks may need 5–7 days drying after heavy monsoon.
Anti-greying pre-treatment (optional, if weathered)
If the deck is already greyed from UV (12+ months untreated), apply Anti-Greying Fluid 940 with a synthetic brush before any oiling. 940 restores the natural wood tone before the new oil locks it in. Let dry per its own TDS (typically 24 h). This step is NOT in the route SKU set — it is a cross-product pointer. Skip if the timber is new or recently sanded back to bare wood.
Sand bare with P80–P100
Sand the full deck surface and visible edges with P80–P100 abrasive in the grain direction. Coarser grit than interior work — exterior wood needs open pores to drink the oil deeply for UV/water protection. Pay attention to plank-to-plank gaps (rake out debris first) and end-grain at the deck perimeter (absorbs 5–10× more, flood it later). Vacuum thoroughly.
Pick the product — wood species decides
Identify the timber. Teak, Burma teak, bangkirai, ipe, or other dense tropical hardwood → Teak Oil 223 (the penetrating chemistry is engineered to break through dense end-grain that rejects standard exterior oils). Cedar, pine, sheesham, mango, pressure-treated softwood → Terrace Wood Oil 236 (the resin-fortified formulation builds water-repellency in absorbent species). If you do not know the species, do a drop test — water that beads off in seconds = dense tropical (use 223); water that absorbs in under a minute = absorbent (use 236).
First coat — flood the boards
Stir the chosen oil well. Apply a generous thin coat with a wide brush or roller along the grain. Work plank-by-plank to maintain a wet edge — exterior decks are too large for whole-surface wet-on-wet. Flood the end-grain at every plank cut and the deck perimeter — these absorb most. Wipe excess from plank gaps with a clean rag (oil pooled in the gap will not dry and turns sticky in monsoon humidity).
Penetration, wipe-back, second coat
236: after 20–30 min penetration, polish the deck dry with a clean rag — no oil film must remain. Apply the second coat the same way within the wet-on-wet window. Dust-dry 6–8 h, recoatable 16–24 h, foot-traffic 48 h, full cure 72 h. 223: after 30–45 min penetration (dense tropical hardwoods need longer), wipe excess. A second coat goes on after 16–24 h only if the wood is still absorbing — a tight grain that stops drinking after one coat does not need a second.
System Composition
- Pressure-wash, then dry the deck 48–72 h (post-monsoon timing matters — wood must be ≤16% moisture)
- Sanding with P80–P100 — exterior coarser than interior to let the oil drink
- Wood species decides the product — 236 for softwood/standard hardwood, 223 for tropical dense hardwood
- Optional anti-greying pre-treatment (940) if the deck is already UV-greyed
- Two coats wet-on-wet (236) OR deep-impregnation 1–2 coats (223). Excess wipe after each coat.
Why It Works
- Penetrating oils cure inside the wood fibre and move with the deck through monsoon RH 80–95% + summer dry-air swing. A film-forming sealer cracks at every plank seam within one season of Indian climate.
- Built-in IPBC sapstain protection (both 236 and 223) blocks the mould-and-algae bloom that hits exterior timber in Mumbai/Goa coastal humidity within 4–6 weeks of bare exposure.
- Re-oil is a single light coat of the same product over the worn area — no stripping, no sanding (for 223 specifically). The deck never needs full refinishing.
Pick the Right Build
Which build fits your surface?
Softwood / cedar / pine residential rooftop deck
Terrace Wood Oil 236 — 2 coats wet-on-wet (or 3 thin coats). Sand P80–P100. Re-oil yearly first 3 years, then every monsoon. Mumbai high-rise rooftops and Bangalore garden decks.
Terrace Wood Oil 236 — 2–3 coats
Tropical dense hardwood deck (teak, Burma teak, bangkirai, ipe)
Teak Oil 223 — 1–2 coats deep impregnation. Sand P80–P100. Dense wood absorbs heavily — let it drink between coats. IPBC sapstain protection essential for Goa/Mumbai coastal decks.
Teak Oil 223 — 1–2 coats
Greyed / weathered deck restoration (any species)
Anti-Greying Fluid 940 first (cross-product pre-treatment) to restore tone, then either 236 (softwood/standard) or 223 (tropical) per the species rule. 940 is not in this route SKU set — see Care: Exterior Terraces & Furniture.
Pre-treatment 940 + topcoat (236 or 223)
What to Expect
- Foot-traffic ready 48 h after the final coat. Full cure 72 h before placing planters, furniture, or standing water (pots, hot tubs, paddling pools).
- Re-oil cycle for Indian climate: ~12 months on horizontal deck boards, vs ~24 months in European climate. South-facing or coastal decks may need 2 coats per monsoon cycle.
- UV-greying within 12 months on untreated tropical hardwood is normal — the oil slows it, does not stop it. Re-oil at the first sign of greying or when water no longer beads.
- Slight grain-darkening on coat one is normal and reads as "fresh deck" — both 236 (warm amber) and 223 (deeper warm-honey) deepen the natural wood tone.
What to Avoid
- Not for composite WPC decking, PVC decking, or any plastic-based deck board — the oil bonds to wood fibre only.
- Not for sealed or painted prior finishes (PU, varnish, deck paint) — strip back to bare wood with a chemical stripper + sander first. Oil over a sealed film will sit on top and flake.
- Standing water — leaking planters, blocked deck drainage, pot-plant saucers without trivets — will degrade any surface treatment over time. Fix drainage before oiling.
- No medical / health / food-contact claims. Interior food-contact (worktops, cutting boards) uses Countertop Oil 280 — see Kitchen & Food-Contact Surfaces.
Scope & Limits
Where this system applies.
This solution applies to exterior solid-wood decks, terraces, boardwalks, timber walkways, pool surrounds, and other outdoor walkable wooden surfaces where the timber is bare or previously oil-treated.
Requirements
- Before compatible products can be reviewed, the following must be confirmed:
- Solid wood substrate — softwood (cedar, pine, pressure-treated softwood), standard hardwood (sheesham, mango, ash), or dense tropical hardwood (teak, Burma teak, bangkirai, ipe). No composite WPC, no PVC decking.
- Plank thickness ≥ 25 mm for structural stability under walking load
- Moisture content below 14% — measure with a pin meter on the underside of a board (post-monsoon, this means 48–72 h drying after pressure-wash, sometimes 5–7 days on Mumbai/Goa coastal decks)
- No prior PU, varnish, deck-paint, or sealed film — strip back to bare wood with a chemical stripper plus sander. Oil over a sealed film flakes within one season.
- Surface prepared to P80–P100 (coarser than interior — exterior wood needs open pores to drink the oil deeply)
Not compatible with
- This system does not apply to:
- Composite WPC decking, PVC decking, or any plastic-based deck board — these substrates have no wood fibre for the oil to bond into; the chemistry requires absorbent timber
- Interior walkable surfaces (hardwood flooring, parquet, stairs) — interior oils lack UV stabilisers and the IPBC sapstain biocide that exterior oils carry; mis-applying an exterior oil indoors over-builds odour and slows cure
- Mineral or concrete decking (IPS concrete tile, stamped concrete, stone pavers) — wrong substrate class entirely; this solution governs solid wood only
- Sealed-and-painted prior finishes (PU-coated decks, deck-paint resurfacing systems) — must be fully stripped before any LEINOS oil can bond to the bare wood fibre underneath
In the wild
Real surfaces. Real India.
Common Questions
Frequently Asked
- Wood species decides the product, not aesthetic. Teak, Burma teak, bangkirai, and ipe are dense tropical hardwoods — their end-grain is so tight that standard exterior oils sit on top and never penetrate. Teak Oil 223 is engineered with a deep-impregnation chemistry that breaks through the dense fibre. A simple drop test confirms: water that beads off in seconds = dense tropical (use 223); water that absorbs in under a minute = absorbent softwood or standard hardwood (use 236). Applying 236 to a teak deck will leave a sticky surface film that flakes within one season.
- Indian climate cycles re-oil every ~12 months on horizontal deck boards, vs European ~24 months. The driver is monsoon RH 80–95% combined with strong UV — both stress the oil faster than European weather. South-facing or coastal decks (Mumbai high-rise, Goa beachfront) may need a top-up coat per monsoon cycle. The bead test is the cleanest diagnosis: drip water on a board. If it beads → finish is intact. If the wood darkens under the drop → that zone is due for a re-oil. For greyed boards, use Anti-Greying Fluid 940 first to restore the natural tone before the new oil locks it in.
- UV greying within 12 months on untreated or sparsely-oiled tropical hardwood is normal — the oil slows the lignin photodegradation, it does not stop it. You do not need to strip and restart. Apply Anti-Greying Fluid 940 with a synthetic brush to restore the natural wood tone (let dry per its TDS, typically 24 h), then re-oil with the species-matched product (236 or 223). 940 lives in the Care: Exterior Terraces & Furniture solution, not in this route's SKU set. The whole greying-to-fresh cycle is a 2-day weekend job, not a refinishing project.
- Pool-surround boardwalks need Teak Oil 223 even on softwood substrates — the built-in IPBC sapstain protection extends chlorine-damaged-fibre life by ~6 months vs Terrace Wood Oil 236 alone. Apply 2 coats on the riser + 3 thin coats on the tread first install. Re-oil tread every 6–9 months under residential traffic, every 6 months under commercial pool traffic. Critical: keep the deck dry for the full 72 h cure before any chlorinated splash exposure — chlorine attacks uncured oil and shortens the finish life by half.
- No. Interior oils contain no UV stabilisers and no IPBC sapstain biocide — even a chajja-covered terrace sees indirect UV, monsoon humidity blow-through, and the salt-air or pollen exposure that pre-conditions mould bloom. A covered terrace finished with 290 or 240 will grey within 6 months and mould within 4 weeks of monsoon. Use Terrace Wood Oil 236 (softwood/sheesham terraces) or Teak Oil 223 (teak/bangkirai terraces) for any outdoor walkable surface — including partial-cover. The "interior" vs "exterior" line is set by exposure, not by roof presence.
- No — moisture content matters more than calendar timing. After power-washing, the deck must dry 48–72 h before any oil goes on, sometimes 5–7 days on Mumbai/Goa coastal decks after heavy monsoon. Measure with a pin moisture meter on the underside of a board — must read ≤14% before oil. Oiling a wet deck traps moisture inside the wood and the finish bubbles, cracks, or stays sticky within weeks. Also use moderate pressure (1500–2000 PSI) for the wash — high-pressure jets shred soft summer-grain on cedar and pine and leave a fluffed surface that absorbs unevenly.
Next step
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Adjacent applications
Related decision paths.
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