The best metal adhesives, compared.
Top pick: Vigorder blue threadlocker 50 ml Best value: FresFresi E-8000 – Lowest listing price at 4.0 stars or above that is not the top pick: about £4.89 for three 15 ml tubes, 4.4 from 51 reviews. Updated 22.10.2026.
A metal adhesive is what you buy in the UK to lock a metal thread, fill a hole, or bond metal parts. Foil tape and trim are different products. The usual jobs are a bolt that rattles, a hole or a broken lug, a small tight bond, or a joint that must flex and keep water out. The right pack matches the gap. A close fit you can hold suits a thin liquid. A gap you can see needs a putty or an epoxy that fills. A thread needs a locker that cures when air is shut out of the metal, not a cartridge squeezed into the threads. Clean, degreased, and usually abraded metal is part of the job. Heat, weather, and whether you must undo the fastener later belong on the label. How those jobs differ is set out in the [metal adhesive buying guide](/hub/fillers-adhesives-and-sprays/metal-adhesive/sub/metal-adhesive-buying-guide). Cyanoacrylate packs should show EUH202 on the immediate packaging. Load the joint only after the full cure on the pack. Gas, brakes, steering, and fuel lines need a qualified repair.
A metal adhesive is what you buy in the UK to lock a metal thread, fill a hole, or bond metal parts. Foil tape and trim are different products.
22 products checked · 58 hrs invested · +21,400 readers
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Personal buying guide
Question 1 of 2
What are you fixing?
Vigorder’s blue threadlocker is a 50 ml medium-strength anaerobic liquid for metal fasteners at about £7.99, rated 4.8 from 22 amazon.co.uk reviews. UK texts name a motorbike fairing, a mountain bike, and car engine bolts that stopped working loose, with a small amount on each fastener. The listing says 20 minutes to an initial cure and 24 hours to full strength, and the bottle is half-filled on purpose because the liquid cures without air. No breakaway torque and no temperature are printed, so the page does not show this bottle to be LOCTITE 243. UK reviews say the fasteners could be undone later with tools, which is review text rather than a published torque. The cap confused people on first open, the liquid runs and drips, and oily threads weaken the hold. The precautions limit it to metal threads.
Pros
Cons
Best for: You want clean, dry metal bolts on a bike or car that you still want to undo with hand tools.
Less suitable: Plastic threads, brakes, steering, or anyone treating blue as a British Standard.
Specifications
Common questions
Will this threadlocker work on plastic threads?
No. The precautions say to use it only on metal threads.
Can I undo the fastener later?
The listing calls it medium strength. UK reviews say the bolts could be undone later with tools. No breakaway torque is printed.
Why does the bottle look half empty?
The listing says the bottle is half-filled on purpose because the liquid is anaerobic and cures without air.
Sika Stixall Crystal Clear is a 290 ml cartridge at about £7.46, with 4.6 from 8,765 amazon.co.uk reviews. In the first 50 UK texts, reviewers praise a thick grab on wood beading, a boot spoiler, and paving, and a few say they applied it in the rain and it still held. The listing gives a skin in 10 minutes and full cure in 7 days, and one reviewer was still waiting and did not find the grab strong. You need a sealant gun, which is not in the included components. Metals sit on the surface list with glass, plastic, concrete, and wood, and the stated band is −40°C to +70°C. The bullet says this crystal-clear colour is not for exterior use, which sits against those outdoor reviews, and some buyers also said the colour did not match the shade they expected. The bullets call it a hybrid polymer, the material field says polyurethane, and Sika’s sheet says STP, so the chemistry line on amazon.co.uk does not agree with itself.
Pros
Cons
Best for: You want an indoor metal joint that must flex, fill a gap, and keep water out, if you can leave it seven days.
Less suitable: Exterior work with this clear colour, a thread you need to lock, or a joint you must load the same day.
Specifications
Common questions
Can this crystal-clear Stixall be used on metal?
Yes. The listing names metals among glass, plastic, concrete, and wood. It is a sealant and adhesive, not a threadlocker.
Is the crystal-clear cartridge for outdoor metal?
The bullet says this colour is not suitable for exterior use. The stated temperature band is −40°C to +70°C.
Do I need a gun?
Yes. The listing says to put the cartridge in a caulking gun, snip the tip, and apply. A gun is not in the included components.
LAWEZX is a cyanoacrylate liquid at about £7.58 with 4.6 from 616 amazon.co.uk reviews, and the bullets claim a bond in 45 seconds and a full cure in 24 hours. UK reviewers use it on shoes, a lampshade, and a freezer flap, and one said it held where their usual cyanoacrylate failed. The title names metal, yet the compatible-material field says plastic only, and one UK review needed an activation spray for metal to wood that is not in the pack. The liquid runs down the nozzle onto fingers, and reviews mention skin bonding, with tiny safety print that one reviewer quoted as warm soapy water. The bullets say two bottles and six droppers while the package quantity is 1, and the volume line prints both 100 ml and 100 g. Waterproof and heat resistant are claimed with no degree figure. Treat it as a close-fit liquid if you have read that conflict, not as a filler for a gap you can see.
Pros
Cons
Best for: You want a small close-fitting joint you can hold, once you have accepted the plastic-only field.
Less suitable: A gap you can see, or metal to wood when you have no activator.
Specifications
Common questions
Does the listing say this bonds metal?
The title and bullets name metal. The compatible-material field says plastic only. One UK review said metal to wood needed an activation spray that is not included.
Is it waterproof?
The water-resistance field says waterproof. No immersion depth or time is printed.
How is it packed?
The bullets say two bottles and six droppers. Item package quantity is 1, and the volume line prints both 100 ml and 100 g.
Across 16,076 amazon.co.uk reviews, the J-B Weld SteelStik 8267UK is a 57 g dark grey epoxy putty at about £6.79 that UK reviewers knead into rust holes, a van floor, a bird bath, and an ironing-board foot. The putty does not run the way a liquid does, and once it has gone hard reviewers sand or drill it. The listing full-cure field says 1 hour, and the 4,000 PSI figure is the tensile rating of the cured putty, not the strength of the joint you have just made. Working time is short after the two parts are mixed, and UK reviews mention a strong smell and putty on skin, so gloves come up often. One metal bond lasted two to three months and then fell off, a bed frame cracked when the load changed, and a leaky pipe still leaked for one reviewer. It is the top pick in this set when you are filling or rebuilding metal you can shape and file, and a poor stand-in for a thread or a joint that flexes.
Pros
Cons
Best for: You are filling holes, rust patches, and small metal rebuilds you can file after the listed 1-hour cure.
Less suitable: Threads, a joint that flexes under a changing load, or a pipe leak you cannot isolate.
Specifications
Common questions
Does SteelStik bond metal?
The listing names metal, including aluminium, brass, copper, iron, and stainless steel. It does not publish a joint strength for your repair. The 4,000 PSI figure is the tensile rating of the cured putty.
How long does the listing say it takes to cure?
The amazon.co.uk full-cure field says 1 hour. UK reviews describe it going hard in about 5 to 15 minutes after kneading. There is no separate working-time field.
Can it replace a threadlocker on a bolt?
No. This is a putty stick for filling and rebuilding. The Vigorder bottle in this set is the product sold for metal threads.
FresFresi E-8000 is three 15 ml clear gel tubes at about £4.89, the lowest listing price in this set, with 4.4 from 51 amazon.co.uk reviews. UK texts use it on 3D-printed parts, acrylic, Sony headphones, a phone screen, and a nylon coat pocket that needed clamps. The gel is described as transparent, though one review saw a visible residue on earbuds. Metal is one line in a long substrate list that also includes glass, leather, rubber, fabric, and plastic. The cure field says 24 hours and a bullet says 24–48 hours depending on temperature and humidity. The water field says water resistant, not waterproof, and no heat figure is printed. A pin in the cap is the detail reviewers like on these small tubes. It is the best value in this set for a small craft bond, and a weak choice for a hole in structural steel.
Pros
Cons
Best for: You want a small clear craft bond, including a metal detail, when the shelf price matters more than a rebuild.
Less suitable: A hole in steel, an outdoor load, or a bolt that needs locking.
Specifications
Common questions
Is this a metal-only adhesive?
No. Metal is one line in a long substrate list that also includes glass, leather, rubber, fabric, and plastic.
Does it dry clear?
The gel is described as transparent. One UK review said it dried clear on 3D-printed parts. Another said it left a visible residue on earbuds.
Is it waterproof?
The field says water resistant, not waterproof. No heat figure is printed.
JOYAONE’s 130 ml bottle with a brush in the cap is the dearest listing in this set at about £9.49, and the weakest, at 3.0 from 12 amazon.co.uk reviews. A few UK writers liked the brush for model and photo-etch work, and the volume compared with a 3–5 g shop tube. Several others say it stays tacky, does not dry hard, and does not hold the joints they tried. One review says it melted a foam toy. The bullets name wood, metal, and ceramic, and claim resistance to most household solvents after full cure, but the page prints no cure time and no water rating. There is no strength figure either. At this price and this sample, the brush is the useful part, and the bond is what the reviews have not shown.
Pros
Cons
Best for: You specifically want a brush cap and will test a scrap before trusting a joint.
Less suitable: Any metal joint you need to load, or foam and other materials a review already saw melt.
Specifications
Common questions
Does the listing say it bonds metal?
The bullets name wood, metal, and ceramic. There is no strength figure and no cure time.
How did UK reviewers rate the bond?
The listing is 3.0 from 12 reviews. Several UK texts say it stayed tacky and did not hold. A few praised the brush for model work.
Is it waterproof?
The listing does not give a water rating. The page raises the question, and the technical block does not answer it.
Six amazon.co.uk listings were scored as round((star rating / 5) × 70) plus a review-count band: 25 points at 10,000 reviews, 18 at 1,000, 12 at 100, 6 at 20, otherwise 2. The epoxy putty adds 8 and the threadlocker adds 6 because the listing job is metal repair or metal threads. Those stored scores are what this page uses. The weights below sum to 100 so the same method can be shown as shares. The highest score is the top pick. The best value is the lowest listing price at 4.0 stars or above that is not the top pick. Prices are the amazon.co.uk shelf prices on the listings. This is not a laboratory test.
Amazon stars
70%Star rating divided by 5, multiplied by 70, then rounded. A 4.5 contributes 63 points before the review band is added.
Review volume
22%Points on top of the star score: 25 at 10,000 reviews, 18 at 1,000, 12 at 100, 6 at 20, otherwise 2. A 4.8 from 22 reviews does not outrank a large UK file.
Metal-job adjustment
8%The putty listing adds 8 and the threadlocker adds 6 because the stated job is metal repair or metal threads. Other packs stay on stars and review volume.
Match the chemistry to the job and the gap. A threadlocker will not fill a hole, a putty will not lock a bolt, and a thin cyanoacrylate will not bridge a gap you can see. Read the full cure on the pack before you load the joint.
A metal adhesive on a UK shelf locks, fills, or bonds metal. Foil tape, trim, and self-adhesive signs are different products. Four jobs cover most purchases. A medium-strength threadlocker is for metal fasteners that rattle and that you still want to undo with tools. Epoxy putty is for a hole or a rebuild you can shape and file. Cyanoacrylate is for a close fit you can hold. A hybrid sealant-adhesive is for a joint that must flex, fill a gap, and keep water out.
A close fit is the cyanoacrylate job. A gap you can see needs epoxy or putty. One listing names metal in the title and plastic in the compatible-material field.
The blue bottle is limited to metal threads. Putty fills and rebuilds. It does not lock a fastener, and a grab cartridge squeezed into threads is the wrong chemistry.
That figure is the tensile rating of the cured putty. It is not the strength of the repair you have made, and it is not a weld. Oil, paint, and a flexing load are where reviews failed.
Threadlocker for metal threads. Epoxy putty for a hole or a rebuild. Cyanoacrylate for a close fit you can hold. A hybrid sealant-adhesive when the joint must flex, fill, and keep water out. Published metal-intended cyanoacrylates are about 0.15 mm. A visible gap needs epoxy or putty. A grab cartridge will not lock a thread. Clean, degreased, and usually abraded metal is part of the product. Putty should be one colour before you mix it.
A steel-filled putty maker page quotes about 177°C continuous. Henkel’s published blue medium-strength grade is about −55°C to 180°C and is meant to come off with hand tools. Red high-strength grades may need localised heat above about 250°C. Colour is not a British Standard. The hybrid sheet used here stops at +70°C and the crystal-clear listing says that colour is not for exterior use. An exhaust is outside those bands. Load the joint only after the full cure printed on the pack.
Three typical situations, each with a recommendation from this comparison.
You want a putty you can shape into a hole or a rusty steel bracket, then file. J-B Weld SteelStik is the top pick: 57 g at about £6.79, 4.5 from 16,076 reviews, with a listed full cure of 1 hour. It is a poor stand-in for a thread or a joint that flexes.
You want a medium-strength locker on clean, dry metal threads, not sealant in the threads. The Vigorder blue bottle is about £7.99, 4.8 from 22 reviews, with 20 minutes to an initial cure and 24 hours to full strength. Plastic threads are ruled out, and no breakaway torque is printed.
You want a cartridge that fills, grabs, and keeps water out, plus a gun and the pack’s interior line. Sika Stixall Crystal Clear is 290 ml at about £7.46, 4.6 from 8,765 reviews, skin in 10 minutes and full cure in 7 days. This colour is not for exterior use on the listing.
The top pick is J-B Weld SteelStik at about £6.79: a 57 g dark grey epoxy putty, 4.5 from 16,076 amazon.co.uk reviews. Reviewers knead it into holes and small rebuilds, then sand or drill it once it has gone hard. The listing full-cure field says 1 hour. The 4,000 PSI figure is the tensile rating of the cured putty, not the strength of your joint. The best value is FresFresi E-8000 at about £4.89, three 15 ml clear gel tubes, 4.4 from 51 reviews, the lowest price here at 4.0 stars or above. It suits a small craft bond. It is a weak choice for a hole in structural steel.
FresFresi E-8000
Lowest listing price at 4.0 stars or above that is not the top pick: about £4.89 for three 15 ml tubes, 4.4 from 51 reviews.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison. amazon.co.uk prices, stars and review counts are from the listings for the six ASINs in this set.
Expert source (DIY & tools): Charlie White (Charlie DIYte) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.
