Tru-Oil Finishing

Tru Oil Guitar Finish (Hand-Applied Oil System) In stock in the UK

A complete tru oil guitar finish system for a natural feel and beautiful satin-to-gloss results. These Birchwood Casey Tru-Oil finishing products are fully compatible and designed to be used together for a tru-oil guitar build: Sealer & Filler → Tru-Oil → Stock Sheen & Conditioner. It sits alongside our wider guitar finishing range, with fast UK delivery.

Complete compatible system Hand-applied (no spray gun) Satin to gloss control In stock in the UK
Tru oil wood finish products for a natural guitar finish in the UK
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Important (compatibility + availability):

The products in this category are selected to work together as a full guitar finishing solution for finishing a guitar with tru oil. When applied in thin coats with good prep, they deliver a smooth, durable, workshop-friendly finish.

In stock in the UK: these products are dispatched from our UK warehouse with fast UK delivery. Prefer a low-odour route? See our water based guitar finish range instead.
Health & safety: use good ventilation, avoid skin/eye contact, and dispose of oily rags safely (risk of self-heating).

Why choose a tru oil finish on guitar?

Pros: easy hand application, no spray equipment, warm “natural wood” look, great feel on manches, simple spot repairs.
Cons: slower build than spray finishes, needs patience for thin coats and drying, and ultra-glass “piano gloss” requires more levelling/polishing.

Buy by workflow (tru oil guitar finish steps)

1

Sealer & Filler (Prep + Base)

Prepares the wood by sealing and helping fill pores (open-grain woods).
Shop Sealer & Filler basecoat → Acts like a sanding sealer + pore filler in one. Very open-pore woods may need extra applications.

2

Colour with Dye / Stain (optional)

For transparent / translucent finishes: alcohol/ethanol dye or metal complex dye.
Shop dyes & stains → Apply, let dry, then build your oil coats over the top.

3

Build the Finish (Thin Coats)

Apply multiple thin coats to build protection and depth (corps or manche).
Shop the oil finish (90ml / 240ml) → Thin coats dry cleaner and reduce streaks. Lightly level between coats if needed.

4

Stock Sheen & Conditioner (Sheen Control)

Shop Stock Sheen & Conditioner → Refine the final feel and sheen — dial in a tru oil satin finish or a soft gloss — and condition the surface.
Great for dialling-in a smooth “played-in” feel, especially on manches.

Optional add-ons (recommended for finishing a guitar with tru oil)

A tru oil wood finish is forgiving, but good prep and clean application make a big difference. These add-ons help you get a smoother finish with less effort.

Prep & Sanding

Better sanding = cleaner oil finish. Essential for a smooth manche feel.

View sanding set →

Level, Polish & Buff

For high-gloss: level, polish & buff instead of the sheen and conditioner product for mirror depth. (A tru oil finish can reach a high gloss, but it takes patience and proper curing time.)

View Polishing Set →

Care & Maintenance

After finishing: fretboard oil and long-term care.

View Lemon Oil →

Want the complete set?

Get the full compatible finishing system (Sealer & Filler + oil finish + Stock Sheen), sized for your project.
In stock in the UK with fast UK delivery.

Shop the full set →

Quick FAQ

Does this category include a complete finishing solution?

Yes. Sealer & Filler prepares/seals the wood, the oil finish builds protection, and Stock Sheen & Conditioner refines the final sheen and feel. They’re selected to be fully compatible.

Does Sealer & Filler replace grain filler or sanding sealer?

It acts as both: it seals like a sanding sealer and helps fill pores on open-grain woods. On very open-pore woods (e.g., some ash/mahogany), you may need extra applications to get a perfectly level surface.

Which size should I choose (90ml vs 240ml)?

90ml is usually enough for a manche or a small project. 240ml is better for full corps, multiple builds, or if you want extra coats and a deeper finish.

What are the key safety tips when finishing a guitar with tru oil?

Apply very thin coats with good ventilation, avoid skin/eye contact, and dispose of oily rags safely (do not ball them up; let them dry flat or store in a sealed metal container).

Are these finishing products in stock in the UK?

Yes. These finishing products are in stock in the UK and dispatched from our UK warehouse with fast UK delivery. For enquiries, just get in touch.