The best silicone oils, compared.
Top pick: Dingsen pouring oil, 300 g Best value: Lubrisolve – Lowest pence per millilitre of neat oil if you will use a litre: about £22.99, 4.5 from 92 ratings. Not the lowest sticker, and not a treadmill applicator. Updated 22 October 2026.
Silicone oil sold to UK households is usually polydimethylsiloxane, used as treadmill lubricant, dropper oil for rubber seals, an additive for acrylic pouring, or a spray for hinges and uPVC. The fit is the form the manual or the job names. A belt, a hinge, a paint cell and a gun seal are not one product. Judge a listing by form, reach and a stated duty. Neat oil is for a job that asks for oil. A spray still contains solvent and propellant, so it suits a hinge or window gear rather than a counted dose under a belt. The applicator has to reach the centre of a treadmill belt. A centistoke figure is the viscosity that matters. An SAE grade on a marketplace row is not a car-oil match. If the manual says the deck is waxed, sealed or not to be lubricated, do not oil it. See the [silicone oil buying guide](/hub/fillers-adhesives-and-sprays/silicone-oil/sub/silicone-oil-buying-guide). Spilt silicone is slippery. An aerosol can be extremely flammable, so read the tin.
Silicone oil sold to UK households is usually polydimethylsiloxane, used as treadmill lubricant, dropper oil for rubber seals, an additive for acrylic pouring, or a spray for hinges and uPVC.
42 products checked · 58 hrs invested · +21,400 readers
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Personal buying guide
Question 1 of 2
Where will you use it?
Dingsen UKYD-1499 is 300 g of clear silicone pouring oil at about £13.89 in a fine-tip bottle. The star line is 4.9 from 32 ratings, and the listing has nine review blocks of which three are from the United Kingdom. Those UK notes say the pour did what the buyer wanted, and one calls it the best they have used, which is a short sample. A Spanish review got no cells with a cheap paint and only small cells with a dearer paint. Bullets name pouring medium and Floetrol, and they also mention treadmill lubrication. The page asks whether it is safe for children and does not give an age grade. Do not read that prompt as a child-safe claim.
Pros
Cons
Best for: You already pour with a medium such as Floetrol and you want a large fine-tip bottle.
Less suitable: You are choosing on a 4.9 alone, or you need a treadmill oil with an applicator and a centistoke line.
Specifications
Common questions
How much is in the bottle?
Item weight and the title say 300 g. Package dimensions are 18.5 x 11.5 x 5.4 cm.
Does the listing say it is for children?
A question prompt asks if it is safe for children. The bullets say it is safe for artists and indoor use. No age grade is given. That is not a child-safe rating.
What else do the bullets mention?
Acrylic pour cells, pouring mediums including Floetrol, and use as a treadmill lubricant. The title is a pouring oil. The treadmill line is a bullet, not an applicator or a centistoke figure.
FloraVigo FVDE251209 is a treadmill oil at about £6.99 whose title says 140 ml while the liquid-volume field says 100 with no unit. The star line is 4.9 from 8 ratings, and the listing holds three United Kingdom reviews. Those reviews say a belt or walking mat glides after application and that the bottle is easy to use. The material field says dimethicone, which is a silicone, and the bullets say 100% pure silicone oil. Pack count is 2 and item count is 1, so the carton is not a clear two-piece set. One reviewer said the bottle is not huge, so waste matters. Eight ratings cannot carry a 4.9 the way a few hundred can.
Pros
Cons
Best for: You already accept a thin review file and you will measure the fill when it arrives.
Less suitable: You want a viscosity, a large UK sample, or a volume that matches the title.
Specifications
Common questions
What volume is stated?
The title says 140 ml. The liquid-volume field says 100, with no unit on that line. Item weight is 190 g. The title and the volume field do not agree.
What is the material field?
The material field says dimethicone. The bullets say 100% pure silicone oil. Dimethicone is a silicone. No centistoke figure is stated.
How many reviews are on the listing line?
4.9 out of 5 from 8 ratings. The listing has three United Kingdom reviews. Eight ratings are too thin to lead this table.
Abbey Silicone Gun Oil 35 is a 30 ml bottle at about £7.21 for airsoft guns, rifles and air-gun components, and the item weight is 30 g. Across 384 amazon.co.uk ratings the line is 4.8, and the first 50 texts are all from the United Kingdom. Reviewers put a little on seals and O-rings and treat it as a silicone alternative to petroleum Pellgun oil on CO2 seals. The dropper meters that dose, and the small bottle fits a gun bag. The unit-count field says 1050.0 millilitres, which the title and the weight contradict. One UK review says the listing should state more clearly that this oil is not for metal working parts, and older reviews describe a cap that will not seal. A UK retailer says it is not for metal-to-metal.
Pros
Cons
Best for: You maintain air-gun or airsoft seals and you want a silicone oil rather than a petroleum gun oil.
Less suitable: Metal-to-metal rifle actions, or a treadmill belt.
Specifications
Common questions
What volume should you trust on this listing?
The title and the size line say 30 ml, and the item weight is 30 g. The unit-count field says 1050.0 millilitres. Trust the title and the weight, and check the bottle when it arrives.
What does the listing say it is for?
Recommended uses are airsoft guns, rifles, and air-gun components. Specific uses name barrels, stock, and leather and plastic air-gun washers. A UK retailer says it is not for metal-to-metal.
Does the specification say it prevents rust?
No. A question prompt on the page asks about rust. There is no yes or no in the specification.
DecorRom F0212 is listed at about £8.99 with a 200 ml title, application tubes, and 4.7 from 307 amazon.co.uk ratings, all 50 sampled texts from the United Kingdom. Reviewers say the long tube reaches the middle of the belt and that a few drips quiet a noisy walking pad. Some buyers were surprised to receive two bottles. The liquid-volume field says 200 centilitres, which is not 200 ml, and one reviewer already flagged 7 oz advertising against a 200 ml, two-bottle description. The SAE row says 0W, with no centistokes. The oil is runny, the bottle has no scale, and the tube is hard to reseal once it is fitted.
Pros
Cons
Best for: You want a tube long enough for the middle of a home belt and you will check which volume actually arrives.
Less suitable: You need a single volume figure you can trust before you pay, or a thick oil that stays where you put it.
Specifications
Common questions
What volume does the listing give?
The title and the unit count say 200 ml. The liquid-volume field says 200 centilitres. Number of items is 2. Those volume lines do not agree.
Does it include a tube?
The title says it comes with application tubes. Bullets mention a precision twist cap and an extension tube. Reviewers say the tube is hard to reseal once it is fitted.
Which machines are named?
Recommended uses are treadmills, ellipticals, and spinning bikes.
The Prounol 100 ml bottle is about £6.49 and includes a 16 cm applicator for treadmill belts, walking pads and other gym kit named on the listing. The star line is 4.6 from 18,501 ratings, but the first 50 review texts match the 200 ml ASIN in this set, so that count is not evidence for the 100 ml size alone. Reviewers say a dry treadmill or walking pad quietens after storage, and the long neck reaches under the belt better than the bottle that came with the machine. The listing suggests 100 ml if you use the machine under two hours a week, and it claims a Made in EU origin plus a hygiene attest number. No centistoke figure is printed. The oil is described as thin, the pipette as fiddly or leaky, and one reviewer disliked a strong smell. A QR code for the instructions asks for registration.
Pros
Cons
Best for: You want a 100 ml treadmill bottle with a longer neck than the 15 cm Viscos applicator, and you will not treat 18,501 as a count for this size alone.
Less suitable: You need a stated centistoke grade, or you oil often enough that 100 ml will not last.
Specifications
Common questions
What size is this Prounol bottle?
The size row and the title say 100 ml. The listing also names 200 ml and 500 ml as other sizes.
Is an applicator listed?
Yes. Included components are the 100 ml lubricant and a 16 cm applicator. The bullets mention a 160 mm long-neck applicator.
Is the review count only for this size?
The listing line is 4.6 out of 5 from 18,501 ratings. The same line and the same first 50 review texts appear on the 200 ml ASIN in this set. That count is not evidence for the 100 ml size alone.
The Prounol 200 ml bottle is about £10.49, model 153, with a precise applicator and the same 4.6 from 18,501 rating line as the 100 ml listing. One reviewer in that shared sample used about 15 to 20 ml on a walking pad and noticed a difference, which is a larger dose than a few drops. The size row and the weight both say 200 ml and 200 g, so the fill is the clearer reason to pick this ASIN over the smaller Prounol. No centistoke viscosity is stated. The same complaints travel with the shared texts: a thin oil, a fiddly pipette, a QR code that asks you to register, and one strong smell. A comment about a 500 ml fill sits in this listing even though this title is 200 ml.
Pros
Cons
Best for: You already like the Prounol applicator and you want twice the fill of the about £6.49 bottle.
Less suitable: You oil once or twice a year, or you need a viscosity the listing does not print.
Specifications
Common questions
How much oil is in this bottle?
The size row and the title say 200 ml. Item weight is 200 g.
What comes in the pack?
Included components are treadmill lubricant 200 ml and a precise applicator.
Is the review count only for this size?
The listing shows 4.6 from 18,501. The review sample matches the 100 ml Prounol listing in this category, including a comment about a 500 ml fill. That count is shared, not proof of this size alone.
The 3-IN-ONE silicone lubricant, model 44015, is a 400 ml spray at about £9.78 from WD-40 Company, not a bottle of pourable oil. Across 2,383 amazon.co.uk ratings the line is 4.6, and the first 50 texts are all from the United Kingdom. Reviewers free sticking uPVC doors, hinges, locks and window runners, and they use it on car-door and caravan rubber seals. Several say it dries quicker and stays cleaner than the ordinary multi-use can. The listing names rubber, plastic, wood, vinyl and metal, and it claims a water-repellent film. The straw was missing or would not stay put, the pattern is too wide for some sliding windows, and one reviewer saw white residue on metal hinges. The captured listing has no CLP line, and the warranty field says no guarantee. Halfords prints this aerosol as extremely flammable.
Pros
Cons
Best for: You are freeing a uPVC window, a hinge or a rubber seal and you want a quick-drying spray.
Less suitable: A treadmill belt, an acrylic pour, or any job that needs a counted number of drops.
Specifications
Common questions
Is this a bottle of oil?
No. The title is a silicone lubricant spray, 400 ml, in a tin. Item form is liquid. It still contains solvent and propellant, so it is not a counted dose of neat oil.
Which surfaces does the listing name?
Compatible materials are rubber, plastic, wood, vinyl, and metal. Bullets add uPVC windows and doors, rails, hinges, and similar hardware.
Does the listing include a hazard statement?
No CLP phrase is in the captured listing. The warranty field says no guarantee. Halfords prints the same 400 ml aerosol as extremely flammable, a pressurised container, and a drowsiness warning.
Limino LF170 is two 100 ml bottles at about £8.99, with two soft tubes and two pairs of gloves, for treadmills and ellipticals. The star line is 4.6 from 275 ratings, and 38 of the first 50 texts are from the United Kingdom. Reviewers say the tubes reach under the belt and that the pack quietens friction, and one prefers it to a spray they had been using. The SAE row says 0W-20, and there is no centistoke figure. One bullet says the lubricant is mainly for equipment that requires non-silicone lubricants, which fights the 100% silicone claim. A UK reviewer could not get a bottle to squirt and called opening it a biohazard, and another thought the small bottles were dear for daily use.
Pros
Cons
Best for: You want a two-bottle treadmill pack with tubes and gloves, and your manual asks for silicone rather than the non-silicone bullet.
Less suitable: You need one viscosity figure you can match to a manual, or a bottle that must squirt rather than drip.
Specifications
Common questions
How is the 200 ml packed?
Number of items and number of packs are both 2. The bullets say two bottles of 100 ml, two soft tubes, and two pairs of gloves.
What machines does the listing name?
Recommended uses are treadmills and elliptical machines. A bullet also says it suits most household and heavy commercial treadmills.
Is a viscosity in centistokes stated?
No centistoke figure is on the listing. The SAE row says 0W-20. That SAE grade is not a centistoke viscosity.
Nicpro MG052 is a clear silicone pouring oil at about £10.99, with the title at 210 ml and the size row at 207.01 ml. The star line is 4.5 from 1,695 ratings. Twelve of the first 50 texts are from the United Kingdom and the rest are mostly from the United States and Canada. A bullet says one drop per 10 ml of pour paint, and reviewers who match the mix report cells from a precision tip. Cells were weak or absent for some users, including one UK reviewer, and a UK lid burst so little oil came out. One bullet also says it can be used as a treadmill lubricant, which is not what the title is selling. The age range on the listing is adult.
Pros
Cons
Best for: You want a larger pouring bottle than 45 ml and you will test a small cup before a full canvas.
Less suitable: A belt that needs a treadmill applicator, or a first pour where you want the maker's 3-to-8-drop ceiling printed on the bottle.
Specifications
Common questions
What volume is stated?
The title says 7 oz and 210 ml. The size row says 207.01 ml. Item volume is 7 fluid ounces. The title and the size row do not match.
What paints does the listing name?
Paint type is oil, acrylic, and watercolour. Bullets say it is compatible with acrylic or watercolour paints and pouring mediums.
Does the listing mention treadmills?
One bullet says it can also be used as treadmill lubricant. The product title is a pouring oil for art. That bullet is not a treadmill applicator or a centistoke line.
The Viscos-350 VS-350-100ml is a 100 ml treadmill silicone oil at about £4.99, and the specification row states 350 cSt. Across 675 amazon.co.uk ratings the line is 4.5, with the first 50 texts in the listing all from the United Kingdom. Reviewers use the pipette to quiet a home treadmill or walking pad, and several say the bottle lasts more than one application. The listing names polydimethylsiloxane, a nozzle cap and a 15 cm applicator, and it says you can apply the oil without loosening the belt. A separate SAE row says 75W-140, which is not the same thing as 350 cSt. The pipette is too short for the middle of some belts, some orders arrived with only a screw cap, and leaked parcels come up often. One reviewer said the belt stuck after oiling.
Pros
Cons
Best for: You oil a home treadmill or walking pad a few times a year and the manual allows silicone oil under the belt.
Less suitable: A deck the manual says is waxed or sealed, or a belt so wide that 15 cm will not reach the middle.
Specifications
Common questions
Does the listing include an applicator?
Yes. The included-components line lists a 100 ml bottle, a nozzle cap, and a 15 cm applicator. The bullets also describe a 3 ml applicator with about 150 mm of reach. Some orders arrived with only a screw cap.
What viscosity does the listing state?
The specification row says 350 cSt. A separate SAE row says 75W-140. Both figures are copied from the listing. 350 cSt is a seller figure, not a British Standard. The SAE row is not the centistoke figure.
Where does the listing say it is made?
Country of origin is the United Kingdom, and the manufacturer field is Lotus Chemical UK.
Lubrisolve SIL1 is 1 litre of silicone oil at about £22.99, about £2.30 per 100 ml, listed for fitness equipment, small moving parts and radio-controlled cars. The star line is 4.5 from 92 ratings, with nine United Kingdom texts among 13 blocks in the listing. One 2020 review treats the litre as better value than small treadmill bottles, and another uses it to refresh motorhome plastic trim until the colour wears off. The listing says only a few drops are needed and names metal, plastic, rubber, wood and glass. No centistoke figure and no applicator sit in the specification, though one review mentions a nozzle and a child-proof top. A reviewer disliked the smell under a treadmill and bought another brand, and one bottle leaked in a toolbox and arrived empty.
Pros
Cons
Best for: You will use a litre on small parts, trim and occasional gym kit, and you can dose it yourself.
Less suitable: A single treadmill service where a small applicator bottle is enough, or a manual that names 350 cSt.
Specifications
Common questions
What is this litre for, on the listing?
Specific uses say lubricating oil for small moving parts, fitness equipment, and radio-controlled cars. The bullets say only a few drops are needed.
Which materials are listed as compatible?
Metal, plastic, rubber, wood, and glass.
Is an applicator in the specification?
No. One United Kingdom review mentions a free application nozzle and a child-proof top. That is a review, not a specification line.
Pébéo Studio silicone oil, model 524567, is 45 ml at about £6.80 with the pipette in the lid, sold as an additive for acrylic pouring. The listing says a few drops, and at most 3 to 8 drops for the amount of paint you have mixed, with a stated 24-hour cure. Across 2,170 amazon.co.uk ratings the line is 4.4, and the first 50 texts are all from the United Kingdom. Reviewers who stay near 3 to 5 drops report cells, and the small bottle lasts because the dose is drops. Several of those UK texts got no cells or very few, and too much oil split, crazed or dimpled the paint. The waterproof fields say both False and Waterproof. One lid arrived broken and leaked.
Pros
Cons
Best for: You pour acrylics with a pouring medium and you will stop at a few drops.
Less suitable: A treadmill belt, a hinge, or a pour where you want a much larger art bottle.
Specifications
Common questions
How much does the listing say to use?
The bullets say a few drops, with a maximum of 3 to 8 drops depending on how much paint you have mixed. Reviewers who used more report crazing, splits or dimples.
What is it mixed with?
The listing says it is an additive for acrylic paints, used with Pébéo pouring medium for dripping and pouring.
Does the bottle have a dropper?
Yes. The bullets say the pipette is integrated in the lid. One lid arrived broken and leaked.
Twelve amazon.co.uk silicone oil listings were scored on a 0–100 scale. Amazon stars and review count are 45 points. A 4.5 from 675 ratings can sit at the top. A 4.9 from eight ratings cannot. A 4.6 from 18,501 ratings is cut when the same first 50 texts appear on two sizes. Whether the listing states the duty is 25 points: a treadmill applicator, a stated centistoke figure, a gun-seal use, a drop count for paint, or a spray for hinges. An SAE grade such as 0W-20 or 75W-140 does not count as a viscosity. Price against this set is 20 points. About £4.99 for 100 ml of treadmill oil scores on the sticker. About £22.99 for a litre scores on pence per millilitre of neat oil. Spray millilitres are not compared with bottle millilitres. The method file also deducts, up to 15 points, for a volume field that disagrees with the title, a review count under 50, a shared rating line, a bullet that contradicts the silicone claim, leaks, and a missing applicator. Those four blocks are weighted 45, 25, 20 and 10 here so the weights sum to 100. The weight of 10 is the gap that brings the three positive blocks to 100. The method still applies deductions of up to 15, and those points only reduce a score. The highest score is the top pick. The litre with the lowest pence per millilitre of neat oil, after that top pick, is the best value. Prices, stars and review counts are the figures in the listing files scored on 21 October 2026. This order is the listing order. It is not a laboratory test.
Amazon stars and review count
45%Star rating and review count on amazon.co.uk. A 4.5 from 675 ratings can sit at the top. A 4.9 from eight ratings cannot. A 4.6 from 18,501 ratings is cut when the same first 50 texts appear on two sizes.
Stated duty
25%A treadmill applicator, a stated centistoke figure, a gun-seal use, a drop count for paint, or a spray for hinges counts. An SAE grade such as 0W-20 or 75W-140 on a silicone oil does not count as a viscosity.
Price against this set
20%About £4.99 for 100 ml of treadmill oil scores on the sticker. About £22.99 for a litre scores on pence per millilitre of neat oil. Spray millilitres are not compared with bottle millilitres.
Deductions
10%A volume field that disagrees with the title, a review count under 50, a shared rating line, a bullet that contradicts the silicone claim, leaks, and a missing applicator. The method file allows deductions of up to 15 points. The weight of 10 is the gap between the 90-point positive ceiling and 100. Those points only reduce a score. They are not a 10-point award.
Match the form to the job the manual names. Neat oil when the job asks for oil, a spray for a hinge or window gear, and a stated centistoke figure when the manual names one. An SAE grade on a marketplace row is not that figure.
Silicone oil on amazon.co.uk is mostly polydimethylsiloxane. A UK search mixes four jobs: a treadmill or walking-pad belt, a uPVC hinge, acrylic cells, and a rubber seal on an airgun. One listing does not do all four well. Neat oil is the form when the manual asks for oil. A spray is the form for a hinge or window gear, and it still contains solvent and propellant. Permission comes before the bottle.
Standard WD-40 or mineral oil does not belong on a treadmill belt or a rubber seal. If the manual excludes lubrication, or the deck is waxed or sealed, leave it dry.
0W-20 or 75W-140 on a silicone oil row is not a centistoke figure and not a match for engine oil. A shared review count is not proof of one bottle size.
A soaked belt and an overdosed acrylic pour both go wrong. NSF H2 means no intended food contact. Do not call a bullet food-safe or child-safe. Call a technician if the belt tracks off, the deck is torn, or the motor stays hot after a thin film.
The job is a treadmill or walking-pad belt, a uPVC hinge, acrylic cells, or a rubber seal. Neat 100 percent silicone oil is the form when the manual asks for oil. A spray is the form for a hinge or window gear, and it still contains solvent and propellant. One bottle does not do all four jobs well. If the treadmill manual says the deck is waxed, sealed, or not to be lubricated, do not oil it. Unplug the machine and oil between belt and deck, not the surface you stand on.
A pipette or tube has to reach the belt centre. UK reviews mention short, missing and leaky applicators. A stated centistoke figure is a seller number, not a British Standard found for this set. An SAE grade such as 0W-20 or 75W-140 on an Amazon row does not count as the viscosity. Ignore it unless the bottle prints it. Compare pence per millilitre of neat oil, and do not compare spray millilitres with bottle millilitres. Eight ratings are a thin sample.
Three typical situations, each with a recommendation from this comparison.
The manual allows silicone oil under a home belt, and you want 350 cSt stated on a 100 ml listing. Viscos-350 is the top pick at about £4.99, 4.5 from 675 amazon.co.uk ratings, with a 15 cm applicator. The pipette is short for some belts, and some orders arrived without it.
You want a spray for a hinge, lock or window runner, not a counted dose under a belt. The 3-IN-ONE silicone spray is 400 ml at about £9.78, 4.6 from 2,383 ratings. It is an aerosol. The straw goes missing in reviews, and the captured listing has no CLP line.
You will use a litre of neat silicone oil on small parts and occasional kit. Lubrisolve is the best value at about £22.99, 4.5 from 92 ratings, the lowest pence per millilitre of neat oil in this set. It has no applicator in the specification and no centistoke line.
The top pick is Viscos-350 at about £4.99: 100 ml, 4.5 from 675 amazon.co.uk ratings, 350 cSt stated, and a 15 cm applicator, when the manual allows silicone oil under a home belt. The pipette is short for some belts, some orders arrived without it, and leaked parcels come up often. A separate SAE row says 75W-140, which is not 350 cSt. The best value is Lubrisolve, 1 litre at about £22.99, 4.5 from 92 ratings. It is the lowest pence per millilitre of neat oil in this set if you will use a litre on small parts and odd jobs. It is not the lowest sticker price, and the specification has no applicator and no centistoke line. The ten-point gap between these two scores is the award split. The litre is cheaper per millilitre. It is not the clearer treadmill buy. This order is the listing order in this set, not a laboratory test. 350 cSt is a seller figure, not a British Standard.
Lubrisolve
Lowest pence per millilitre of neat oil if you will use a litre: about £22.99, 4.5 from 92 ratings. Not the lowest sticker, and not a treadmill applicator.
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 the figures in the listing files scored on 21 October 2026, not a live check on the day you read this.
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.
