Finishes

Factory Coatings

A coating brushed onto a finished wall covers five faces of every board and misses the sixth. Ours goes on in the mill, before a single board is fixed — all the way round, indoors, in conditions we control.

Why we do it

Coated before it is fixed. Including the face you will never see again.

Three things change when the coating goes on in a mill instead of up a ladder.

Every face, the back included

Boards go through coated all the way round — front, both edges, and the back that ends up against the batten. It is the one face nobody ever inspects and the one that spends its life in a damp cavity. Coating it is straightforward on a line and effectively impossible once the board is on a wall.

A controlled environment

Coatings have conditions — temperature, humidity, a surface free of dust and rain. Indoors those are settings. On a Scottish elevation in November they are the weather, and the weather decides how the film cures.

It is what the industry recommends

Where a coating is specified, factory application before installation performs best — that is Timber Development UK's guidance and Accoya's, not our sales line. The same guidance asks for at least one coat on all faces, end grain included, before the board goes up.

Sources: Timber Development UK and Accoya specification guidance, checked 2026‑07‑30. Full citations are held with the answers they support.

The four

Four coatings, and they are not variations on one idea.

A translucent stain, an opaque paint, a silicate that greys the timber deliberately, and a charred face that is not a coating at all. Pick on how you want it to age, not on the colour it starts at — that is the choice you live with.

Natural Stain

Known to us as Sikkens 771

A translucent stain that keeps the grain visible and warm. Known to us as Sikkens 771 — factory applied, so every board arrives finished and ready to fix.

Grain
Visible
Care
Recoat every 3–5 years on exposed faces; sheltered walls stretch to 5–7

Solid Colour

Known to us as Remmers

A flat, opaque colour with full protection — any RAL colour. Known to us as Remmers, applied in the factory for an even coat on every face.

Grain
Hidden — though sawn texture still shows through the film
Care
A maintenance coat around years 8–12; dark south-facing colours sooner

SIOO:X

A silicate treatment that weathers the timber to an even silvered grey-white over 8–12 weeks — the weathered look without the years of waiting, and even weathering after it.

Grain
Visible
Care
A top-up coat between years 3 and 7; a full re-treat around year 15

Shou Sugi Ban

The charred face. Deep, textured black that is UV-stable and remarkably low maintenance — charred in-house, ready in two weeks like everything else.

Grain
Charred texture
Care
Deep char: none the timber needs. Brushed: re-oil to hold the colour.

The charred face in full →

Colour

Two colours on the shelf. Any other one is mixed for you.

Solid Colour is a Remmers system. We hold two colours in stock; everything else is matched to the RAL standard and mixed to order.

RAL 9005 Jet black In stock
RAL 7016 Anthracite grey In stock
Any other RAL 2,041 colours, mixed to order To order

A custom colour is bought by the tin rather than by the square metre, and whatever is left over ships with the cladding so there is a matching pot on site for cuts and knocks. At 0.26 litres per m² — the Remmers figure for two factory coats — a 10 litre tin covers around 38 m² and a 20 litre tin around 76 m².

Pick the exact colour on any species page: the Solid Paint swatch opens a RAL picker that carries the code through to the calculator and onto the quote.

Choosing between them

How they age.

The real question is whether the timber keeps its colour or silvers — that is what separates the finishes. Intervals are realistic for UK cladding, checked against each manufacturer's own guidance; south- and west-facing walls sit at the short end.

Natural Stain Known to us as Sikkens 771 Visible
Middle of the pack

Fades gradually — never flakes or peels. A recoat goes straight over, no sanding.

CareRecoat every 3–5 years on exposed faces; sheltered walls stretch to 5–7

Solid Colour Known to us as Remmers Hidden — though sawn texture still shows through the film
Holds longest

Holds its colour longest of the four. Chalks slowly rather than flaking.

CareA maintenance coat around years 8–12; dark south-facing colours sooner

SIOO:X Visible
Leaves its colour soonest

Golden at first, silvering within months, mature silver-grey by year two — evenly, all the way round the building.

CareA top-up coat between years 3 and 7; a full re-treat around year 15

Shou Sugi Ban — Deep Char No visible grain — alligator char
Holds well

The carbon layer is the UV protection. Stays black for decades; the odd char flake is cosmetic.

CareNone the timber needs — re-oil only if you want it jet black forever

Shou Sugi Ban — Charred & Brushed Grain revealed through the char
Sheds colour early

The oil, not the char, carries the colour — left alone it weathers like any stained board.

CareRe-oil every 3–10 years to hold the colour; optional if silvering suits

"Holds its colour" scores how long the original colour lasts — SIOO:X sits lowest by design, because silvering is the point, and its silver endpoint is itself stable for 10–15 years. Checked against the Sikkens Cetol WF 771 and Remmers Induline technical datasheets and the SiOO:X care manual, 2026‑07‑29. Guidance, not a guarantee: timber weathers to its own site.

After it arrives

The one job the factory cannot do for you.

A board cut on site has a raw end, and end grain is where water gets in. That cut has to be sealed before the board goes up.

Every coated order ships with touch-up paint

A free tub, in your colour, for sealing cut ends and tidying any damage. That includes coated charred boards. You do not need to buy a separate end-grain sealer for a coated Tiny Temple order — it is in the delivery.

What the coating makers specify generally

For Natural Stain (Sikkens Cetol WF 771), AkzoNobel specifies Kodrin WV 456 end-grain sealant, with damaged areas repaired using a primer coat of WF 771 followed by WV 456. For Solid Colour, Remmers specifies Induline SW‑910 on cutting edges and end grain. Useful to know; our touch-up tub is what a Tiny Temple order actually needs.

Manufacturer products named above are from AkzoNobel and Remmers technical literature. The touch-up tub is Tiny Temple's own, confirmed by the team 2026‑07‑31.

See it before you specify it.

Samples are free and posted on request — name the species and the finishes you want, brushed and charred included. Or price a coated spec straight away.