Starbond BR-500 Dark Brown Medium-Thick – dark brown CA glue for walnut and knots (500 cPs)
Code: 3832/000059Related products
Product detailed description
BR-500 Dark Brown. A knot filler for walnut, which looks natural.
Starbond BR-500 is a medium-thick super glue (500 cPs) in a rich coffee-brown tone. On walnut and other medium-dark woods it looks more natural than black — you repair cracks, knots and voids so that they blend into the grain. The thick consistency stays in the fill, sets in 20–30 seconds and instantly with accelerator.
Where does BR-500 sit on the viscosity scale?
500 cPs is thick enough to fill knots and voids, yet still easy to dose with a microtip. For fine cracks in lighter wood the thinner BR-150 is a better fit.
Thick fill, fast cure.
Without accelerator
Without accelerator it sets in 20–30 seconds. In a larger fill — a knot, a void — coloured glue takes longer to harden, so fill it in layers.
Instantly with accelerator
Starbond Super Glue Accelerator cures a layer instantly. The manufacturer strongly recommends it for filling cracks, knots and voids: apply, spray, next layer.
Starbond Super Glue Accelerator
CA glue cures by reacting with moisture in the air — the accelerator triggers that reaction instantly. Just mist the other side of the joint and the parts hold the moment you press them together.
- Serial bonding with no waiting or clamping
- Primer for hard-to-bond surfaces
- Stops glue soaking into wood and balsa
Pro Kit: glue plus tools for clean work
Starbond supplies this glue as a Pro Kit — the 59 ml bottle comes with accessories you would otherwise buy separately.
Microtips, an anti-clog cap, a spare nozzle.
Super glue most often goes wrong with a clogged nozzle and a drop that runs where it shouldn't. The Pro Kit solves both: microtips put the glue precisely into the joint, the pin in the cap keeps the nozzle open and the spare nozzle is your backup if it clogs anyway.
- 8 microtips for precise dosing into cracks and knots
- pin cap — stops the nozzle clogging between uses
- spare applicator nozzle
- printed instructions with a QR code to the manufacturer's video lessons
Walnut, burl and dark wood
Dark brown glue is a more natural corrector for dark wood than black — the fill doesn't look like a hole but like part of the grain.
🌰 Walnut & dark wood
walnut · ebony · burl- Knots and cracks in walnut
- Stabilising knots
- Hiding small defects on darker wood
- Small repairs while sanding tables and boards
✨ Turning & design
bowls · burl · spalted- Highlighting and hiding defects in burl and spalted wood
- Colour-matching the fill to the grain
- A glossy surface after sanding and polishing
- Layered fills with accelerator
🔧 Workshop
joiners · restorers- Bonding tight-fitting parts
- Filling splits, voids and inclusions
- Repairs to dark-wood furniture
- Quick repairs during work
Bonds wood and other materials
The coloured glues are built mainly for wood. But they also bond metal, ceramics, rubber, leather and most plastics — roughen hard-to-bond smooth surfaces before gluing (manufacturer).
Which coloured Starbond should you choose?
Choose the colour by the wood and the viscosity by the size of the crack. Tip: take BR-500 for walnut and darker wood, where black would look like a hole. For clear joints and CA finishes choose the clear EM glues.
| Light woodBR-150 Light BrownDetail | Dark woodBR-500 Dark BrownThis product | Fine cracksKE-150 Black MediumDetail | Dark voidsKBL-500 Black Medium-ThickDetail | |
|---|---|---|---|---|
| Colour | light brown (amber) | dark brown (coffee) | black | black |
| Viscosity | 150 cP medium-flow | 500 cP medium-thick | 150 cP medium-flow | 500 cP medium-thick |
| Set time | 20–30 s | 20–30 s | 1–2 min | 1–2 min |
| Typical use | Oak, maple, cherry — cracks and knots in light wood | Walnut and medium-dark woods — knots, cracks, voids | Fine cracks, wenge, ebony, spalted wood, RC tyres | Knots, voids, spalted and burl wood, contrasting fills |
Dark Brown Medium-Thick BR-500
Source: Starbond — label and product page (9/2026)
For light wood choose BR-150; for wenge and ebony the black KE-150 or KBL-500.
Storage
- cool (ideally 4.5 °C or below) and dry, with the bottle tightly closed — moisture in the air cures the glue
- protect from sunlight, heat and frost; keep away from water, alcohols, amines and alkalis
- after use wipe the tip and fit the pin cap
- out of reach of children
Frequently asked questions
Brown or black glue for walnut?
On walnut and medium-dark wood the dark brown BR-500 looks more natural — the fill blends with the grain. Black suits very dark woods (wenge, ebony) or works as a contrasting accent.
How does BR-500 differ from BR-150?
BR-500 is dark brown (coffee) and thicker (500 cPs) — it fills knots and voids. BR-150 is lighter (amber) and medium-flow (150 cPs) — it wicks into cracks in lighter wood.
Why use an accelerator with a coloured glue?
Coloured glues set more slowly than clear ones, and in a thicker layer (a knot, a void) they can take a very long time to harden without accelerator. That is why the manufacturer strongly recommends an accelerator for filling cracks, knots and voids — apply the fill in layers and spray each one.
Can the fill be sanded and polished?
Yes. Once cured, you sand the fill flush with the wood and polish it; then finish it the same way as the surrounding surface.
Is super glue the same as CA glue?
Yes. Super glue, instant glue and CA glue all mean the same type — a cyanoacrylate adhesive that sets by reacting with moisture in the air within seconds to tens of seconds.
How should the glue be stored?
Cool (ideally in the fridge at 4.5 °C or below, not in the freezer) and dry, with the bottle tightly closed. After use, wipe the tip and fit the pin cap.
BEZPEČNOSTNÍ INFORMACE O PRODUKTU (CLP)Klasifikace a pokyny dle bezpečnostních listů
Údaje dle CZ bezpečnostní list verze 2, 14. 10. 2026.
VAROVÁNÍ · obsahuje ethyl-2-kyanakrylát
Standardní věty o nebezpečnosti:
H315 Dráždí kůži. · H319 Způsobuje vážné podráždění očí. · H335 Může způsobit podráždění dýchacích cest.
Pokyny pro bezpečné zacházení:
P101 Je-li nutná lékařská pomoc, mějte po ruce obal nebo štítek výrobku. · P102 Uchovávejte mimo dosah dětí. · P261 Zamezte vdechování mlhy/par/aerosolů. · P264 Po manipulaci důkladně omyjte ruce a zasažené části těla. · P271 Používejte pouze venku nebo v dobře větraných prostorách. · P280 Používejte ochranné brýle/ochranné rukavice/ochranný oděv. · P405 Skladujte uzamčené. · P501 Odstraňte obsah/obal předáním oprávněné osobě k nakládání s odpady nebo vrácením dodavateli.
Doplňující informace: EUH202 Kyanoakrylát. Nebezpečí. Okamžitě slepuje kůži a oči. Uchovávejte mimo dosah dětí.
Additional parameters
| Category: | CA Super Glues for Quick and Strong Bonds |
|---|---|
| Weight: | 0.15 kg |
| EAN: | 000126845035 |
| Colour: | Brown |
| Viscosity: | Medium-Thick |
| Use: | Filling gaps, knots and voids |
| ? Type: | Instant (super) |
| Suitable for: | Rubber and leather, Wood, Metal, Glass and ceramics, Plastic |
Starbond Gap Filling CA Glue Review
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The superglues professional workshops trust worldwide.
STARBOND is an American brand specialising in professional CA (cyanoacrylate) adhesives and epoxy repair systems. From the thinnest penetrating glues to thick gap-fillers — every viscosity has its exact use: wood and turning, stone and gemstone repairs, knife making, modelling and stabilising 3D prints.
Pick a colour and a viscosity — and meet your glue
Every combination shows you a specific adhesive with a full description and specs. Not sure? Start with EM-150 — the all-rounder that does a bit of everything.
The complete range, sorted by category
Everything Starbond makes, neatly sorted — from glues by viscosity to accessories.
By viscosityfrom water-thin penetration to thick gap-filler Clear range
Transparentcrystal-clear joints and a high gloss Black & brown
Colouredrepairs that blend into the wood Better value
Setsthe full kit in a single purchase Instantly
Acceleratorscuring with a single spray The rescue
Debondersdebonder for fingers and fixes Big repairs
Epoxy adhesives5-minute epoxy and repair putties Precision
Accessoriesmicro tips, nozzles, dosingThickness decides everything
A thin glue seeps into micro-cracks; a thick one fills the gap. Click along the scale — each viscosity shows what it can do and which glues offer it.
What do you make with Starbond?
Every craft has its proven combinations — each one comes with specific glues and a link to the guide. The photos are from our own projects.
Guide in the article
Furniture & tables
Fill a knot or a crack with black glue, set it with accelerator and sand it back — the repair blends into the grain. An essential step before pouring epoxy, so the slab doesn’t “leak”.
Proven glues KE-150KBL-500BR-150 Read the step-by-step guide →
For woodturners
Woodturning
Water-thin glues soak deep into the fibres: stabilising fragile wood before machining, and a high-gloss CA finish on bowls and pens. With accelerator you work with virtually no waiting.
Proven glues EM-02„Original“EM-40 Choose a glue by viscosity →
Hobby & models
Modelling & hobby
The flexible KEG-500 bond survives RC vibration and impacts; odourless NO-05 won’t blush foams or delicate parts. Fast setting holds 3D prints, cosplay and small household repairs.
Proven glues KEG-500NO-05EM-150 Explore the superglues →
Professional quality you notice from the first drop.
Fresh batches, precise viscosities and applicators that put the glue where it belongs — not on your fingers.
- Industrial-grade CA purity — strong bonds on wood, metal, stone and plastics
- Every bottle comes with application tips for precise dosing
- 30-month shelf life — the glue won’t dry out before you use it up
- A complete system: glues + accelerator + debonder from one brand
Glue + accelerator + debonder = full control
Four products, one working whole: the glue bonds, the accelerator cures it instantly, the debonder undoes a step, and micro tips dose it precisely.
Glue EM-150Bonds. Pick the viscosity and colour to suit the repair — the EM-150 all-rounder handles most of them. 2AcceleratorCures. Spray the other side of the joint — sets in seconds, no waiting. 3DebonderUndoes. Dissolves glued fingers and a joint gone wrong. +Micro tipsDose. In every bottle — the glue ends up exactly where it should.All 11 Starbond glues in one table
From the thinnest to the thickest, including the coloured and the flexible ones. Highlighted rows ★ TOP = our best sellers.
| Glue | Colour | Viscosity | Consistency | Strongest suit | |
|---|---|---|---|---|---|
| EM-02 Super Fast Thin★ TOP | clear | 2–3 cP | like water | penetrating hairline cracks, stabilisation | Detail |
| „Original“ Super Thin | clear | 2–3 cP | like water | the classic for woodturners and finishing | Detail |
| NO-05 Odorless | clear | 2–3 cP | ultra thin | odourless, no blushing — foams and delicate work | Detail |
| EM-40 Heavy Thin | clear | 40 cP | medium thin | fine gaps, inlays with powders | Detail |
| EM-150 Medium★ TOP | clear | 150 cP | like motor oil | all-rounder for 10 materials, sets in 10–20 s | Detail |
| KE-150 Black Medium★ TOP | black | 150 cP | medium | invisible repairs in dark wood, rubber in the formula | Detail |
| BR-150 Brown Medium | brown | 150 cP | medium | blends with walnut, oak and teak | Detail |
| KBL-500 Black Med-Thick★ TOP | black | 500 cP | thick | wider gaps and knots, won’t run on vertical surfaces | Detail |
| BR-500 Dark Brown | dark brown | 500 cP | thick | larger fills that blend into dark wood | Detail |
| KEG-500 Flexible | clear·flex | 500 cP | thick · flexible | a tough bond — vibration, RC, automotive, leather | Detail |
| EM-2000 Gap-Filler | clear | 2000 cP | like honey | a clear “filler” — gaps, voids, missing material | Detail |
What you ask us about Starbond
How is Starbond different from an ordinary superglue from the shop?
Industrial-grade cyanoacrylate purity, a precisely defined viscosity and fresh batches. An ordinary glue comes in one thickness and you have no idea how long it sat in a warehouse. Starbond has six viscosities from 2 to 2000 cP, each for a different job, and a 30-month shelf life.
Which viscosity should I pick if I’m not sure?
EM-150 Medium. At 150 cP (roughly motor oil) it will both seep into gaps and fill smaller voids — one glue for wood, stone, ceramics, leather and most plastics. Sets in 10–20 seconds.
What is the accelerator for, and do I need it?
CA glue cures with airborne moisture — the accelerator triggers the reaction instantly. It pays off with thick glues, large fills and on dry wood, where the glue would cure slowly. Spray the other side of the joint, not the glue itself.
How should I store Starbond so it lasts?
Cool, dry and tightly closed — ideally in the fridge (let it warm to room temperature before use, or moisture will condense). Wipe the bottle after use so the neck doesn’t glue shut. Unopened, it lasts 30 months.