Starbond Concrete Epoxy Putty 57 g – epoxy putty for concrete, masonry and stone, grey
Code: 8983Product detailed description
An epoxy putty that cures like concrete. Fill the crack, rebuild the corner, sand it within half an hour.
Cement mortar crumbles in thin layers and won’t hold in cracks; liquid epoxy runs off a vertical edge. Concrete Epoxy Putty is a two-part epoxy putty in a stick: cut a piece, knead it with gloves on until it is a uniform grey, and press it exactly where material is missing. It bonds to concrete, masonry, brick, stone and stucco, and once cured its compressive strength is comparable to concrete — it doesn’t sag, doesn’t crack at the edges and doesn’t peel. It starts to set in 3–6 minutes, you can sand, drill and paint it after 20–30 minutes, and it takes full load after 24 hours.
Steps, kerbs, joints, anchors
Wherever a piece of concrete or masonry is missing and mortar wouldn’t hold.
Chipped corners and edges
Steps, kerbs, window sills, posts — model the missing corner and sand it flush once cured.
Cracks and joints
Patios, garage floors, masonry, damaged mortar joints, blocks — press in, smooth off, done.
Anchoring and statue repairs
Loose screws, wall plugs and anchors in concrete; repairs to garden statues and stone features.
Not a coat over the problem. New material where it is missing.
According to the manufacturer, the cured putty has a compressive yield strength of approximately 10,550 psi, roughly 72 MPa — a strength ordinary structural concrete doesn’t reach. That is why it carries a step corner that gets walked on, holds an anchor in a block and won’t crumble out of a damaged joint. Shrinkage below 1 % means the repair keeps exactly the shape you modelled.
- concrete · masonry · brick · stone · stucco · metal · wood · most plastics
- shrinkage below 1 % — no sagging and no cracks at the edges
- once cured, it resists rain, freeze–thaw cycles, sun, oil, moisture and common solvents
- suitable indoors too: odourless, low VOC
Sand and paint after 20–30 minutes.
A cement repair dries overnight; this putty is ready for sanding, drilling, filing, thread cutting and painting in 20–30 minutes. It cures to a dark grey, so it blends in on concrete and blocks even without paint — and where you need an exact match, paint over it with masonry or concrete paint. It reaches full strength in 24 hours.
- sand, drill, file, cut threads, paint — just like concrete
- dark grey shade (Dark Gray) — blends in on concrete, paint only for an exact match
- no measuring, no mixing cups — wrap the rest of the stick and use it next time
Step by step
Gloves, a knife and a few minutes. What matters is kneading thoroughly to a uniform colour.
Prepare the surface
Remove loose concrete, dust and grease; a firm, dry, roughened surface holds best.
Cut and knead
With gloves on, cut off the piece you need and knead until the colour is uniform with no light streaks — about 1 minute.
Press in within 3–6 minutes
Push it into the crack or onto the corner and shape it with your fingers or a spatula; smooth the surface with a wet finger.
Let it set
Sand, drill and paint after 20–30 minutes.
Load after 24 h
Full strength and resistance to water and frost after 24 hours at room temperature.
⚠️ The most common mistake
Under-kneaded putty and no gloves. Light streaks in the putty = uncured spots that will crumble out. Knead to a uniform grey. And always wear gloves — uncured epoxy irritates the skin and can cause an allergic reaction; wash your hands after work.
Choose the epoxy putty by the repair
Three Starbond sticks, used the same way — they differ in colour and purpose.
| Concrete and masonry ★Concrete Epoxy PuttyThis product | All-purposeBlack Epoxy PuttyDetails | Near heat sourcesWhite Epoxy PuttyDetails | |
|---|---|---|---|
| Best for | concrete, masonry, brick, stone, steps, anchors | general repairs at home and in the workshop | repairs near heat, light-coloured surfaces |
| Colour when cured | dark grey (concrete) | black | white |
| Shaping / sanding | 3–6 min / 20–30 min | 3–6 min / 20–30 min | 3–6 min / 20–30 min |
| Pack | 57 g (2 oz) | 57 g (2 oz) | 57 g (2 oz) |
Specs you can rely on
Source: technical data sheet TDS2026-1005-01 (manufacturer’s data + Czech safety data sheet v2)
Times apply at room temperature — cold extends setting, warmth shortens it. With a colder substrate outdoors, allow longer to reach full strength.
Documents
How to store
- cool and dry, in the original closed pack; protect from frost and overheating
- wrap the unused rest of the stick back in its film — the components must not touch
- 24-month shelf life · keep out of reach of children
FAQ
Strength, outdoor use, anchoring, painting and safety.
Will the repair last outdoors — rain and frost?
Yes. Once cured, the putty resists rain, freeze–thaw cycles and sun according to the manufacturer, which makes it suitable for steps, kerbs and patios. Apply it to a dry substrate and let it cure for 24 hours above freezing.
How strong is it once cured?
The manufacturer states a compressive yield strength of approximately 10,550 psi (≈ 72 MPa) — comparable to or higher than concrete. A repaired step corner will therefore take normal foot traffic. This is the manufacturer’s figure from its infographic, not an independent test.
Can I drill into it and anchor screws?
Yes — after 20–30 minutes you can drill, file and cut threads. Fill a loose wall plug or anchor with putty and screw it back in once cured; the manufacturer also lists anchoring rebar and bolts in concrete.
What colour is it and can it be painted?
It cures to a dark grey and blends in on concrete and blocks even without paint. For an exact match, sand it after 20–30 minutes and paint it with masonry or concrete paint.
How much can I repair with one stick?
The stick weighs 56.7 g. In practice, you cut only as much as the repair needs, wrap the rest back in its film and it keeps until next time — the shelf life is 24 months.
How does it differ from Black and White Epoxy Putty?
The work is the same — cut, knead, press in. Concrete is matched to concrete grey and made for concrete, masonry and stone; Black is an all-purpose black putty for home and workshop; White is white and made for repairs near heat and on light-coloured surfaces.
How do I handle the putty safely?
Uncured putty irritates the skin and eyes and contains epoxy components that can cause an allergic reaction — always knead it with gloves on and protect your eyes, and wash your hands after work. It is toxic to aquatic life: don’t dispose of leftovers in nature or with household waste, hand them in as hazardous waste. Keep out of reach of children. Details in the safety data sheet above.
BEZPEČNOSTNÍ INFORMACE O PRODUKTU (CLP)Klasifikace a pokyny dle bezpečnostních listů
Údaje dle CZ bezpečnostní list, verze 2, 05.10.2026.
VAROVÁNÍ · obsahuje epoxidovou pryskyřici z bisfenolu A a epichlorhydrinu (průměrná početní molekulová hmotnost ≤ 700)
Standardní věty o nebezpečnosti:
H315 Dráždí kůži. · H317 Může vyvolat alergickou kožní reakci. · H319 Způsobuje vážné podráždění očí. · H411 Toxický pro vodní organismy, s dlouhodobými účinky.
Pokyny pro bezpečné zacházení:
P101 Je-li nutná lékařská pomoc, mějte po ruce obal nebo štítek výrobku. · P102 Uchovávejte mimo dosah dětí. · P264 Po manipulaci důkladně omyjte ruce a zasažené části těla. · P280 Používejte ochranné brýle/ochranné rukavice/ochranný oděv. · P391 Uniklý produkt seberte. · P501 Odstraňte obsah/obal předáním oprávněné osobě k nakládání s odpady nebo vrácením dodavateli.
Doplňující informace: EUH205 Obsahuje epoxidové složky. Může vyvolat alergickou reakci.
Additional parameters
| Category: | Epoxy Adhesives - High Strength and Versatile Use |
|---|---|
| Weight: | 0.085 kg |
| EAN: | 000126800041 |
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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.