The best Indoor plasters, compared.
Top pick: Soudal Repair Express Plaster 290 ml Best value: Palace interior patching plaster 1.5 kg – Lowest shelf price per listed kilogram in the 500-review group, about £1.66 per kilogram at about £2.49 for 1.5 kg. Updated October 2026.
Plaster indoor means a repair compound for plastered walls and ceilings in a UK home. You buy it to fill a picture hook, a patch of skim, or a small hole in a ceiling. A suitable pack states a depth, says whether it is ready mixed or a powder you mix with water, and says interior use or also exterior. Hairline cracks suit a fine ready-mixed filler. A lost patch of skim needs a powder, or a product with a stated depth, in layers. A whole wall needs bagged finish plaster. Check the open time, and whether you can sand and paint the cure. Powder starts to set once mixed. A ready-mixed tub stays usable only while the lid seals. Do not fill active damp. Sanding dry gypsum makes dust, and the Health and Safety Executive wants that dust controlled with extraction. Depth, powder and damp are set out in the [indoor plaster buying guide](/hub/paints-and-varnishes/plaster-indoor/sub/plaster-indoor-buying-guide).
Plaster indoor means a repair compound for plastered walls and ceilings in a UK home. You buy it to fill a picture hook, a patch of skim, or a small hole in a ceiling.
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Personal buying guide
Question 1 of 2
How deep is the damage?
The listing titled Soudal Repair Express Plaster is a 290 ml ready-mixed cartridge at about £9.12 on amazon.co.uk, with 4.8 from 6 reviews. The brand and manufacturer fields say Truly PVC Limited, the origin is Belgium, and the part number is 122525. Only two review texts are in the saved listing, both from the United Kingdom. The bullets say indoor walls and ceilings, plaster, concrete and masonry, sandable, shrink-free, and paintable in as little as 15 minutes. No gun is in the box, and the filler is not water resistant. The two reviews praise coving and skirting cracks and call the price not cheap. Treat the star score as a small sample. It does not take the top pick.
Pros
Cons
Best for: Small indoor cracks, screw holes and coving where you already own a cartridge gun.
Less suitable: You need a large UK review sample, a gun in the box, or an outdoor repair.
Specifications
Common questions
Does the Soudal cartridge include a gun?
The applicator question is unanswered. Included components are one 290 ml EU3 cartridge. A gun is not listed.
Can it be used on ceilings?
The ceiling question is unanswered. The bullets say indoor walls and ceilings. One of the two UK reviews used it on coving.
How soon can you paint it?
The bullets say paintable in as little as 15 minutes. One UK review says drying time depends on the thickness. The water-resistance field says not water resistant.
Palace Fine Surface Filler, model 68-4, is a 600 g ready-mixed tub at about £1.25 on amazon.co.uk, with 4.6 from 2,247 reviews. All 50 texts in the saved listing are from the United Kingdom. The bullets keep deeper repairs to layers of no more than 3 mm and say you can sand and then paint. The item-volume field prints 120 millilitres beside a 600 g unit count, and the item weight is 650 g. UK reviews praise the price on cracks and skirting. They also report leaking lids, a short date, a grey shade and a cure that is hard to sand. It is the top pick here for a fine interior filler with a large review count, when the damage is shallow.
Pros
Cons
Best for: Shallow interior cracks, nicks and gaps around skirting where you want a cheap ready-mixed fine filler.
Less suitable: You need one deep fill, a stated waterproof rating, or a knife in the box.
Specifications
Common questions
How deep can you fill with Palace fine surface filler?
The bullets say deeper repairs go on in layers of no more than 3 mm, with each layer left to dry. The listing does not give a single-coat maximum beyond that.
Is this Palace filler waterproof?
The waterproof question on the listing is unanswered. The water-resistance field says water resistant. The bullets describe an interior filler for plasterwork, skirting and similar surfaces.
Does the tub include a knife?
Included components are one fine surface filler. No knife or sandpaper is listed. The bullets say you apply it with a spatula.
This kit is a Polycell Polyfilla 396 g ready-mixed tube with a Decex 3 inch scraper and a flexible 120 grit sanding block, at about £13.90 on amazon.co.uk, with 4.6 from 15 reviews. The brand and manufacturer fields say Decex, and the origin is the Netherlands. Six review texts are in the saved listing, all from the United Kingdom, and all of them are short praise for small jobs. The bullets allow holes up to 10 mm on plaster, masonry, concrete and brickwork, indoors and outdoors, with surface dry in 1 to 2 hours. No review in the file describes shrinkage, a leak or a failed sand. The price is the highest in this set for the smallest filler pack, because the tools are in the box. Fifteen reviews are not a large sample.
Pros
Cons
Best for: A first small plaster repair when you do not already own a filling knife or a sanding block.
Less suitable: You already own tools, or you want a large UK review sample before you pay about £13.90.
Specifications
Common questions
Does this kit include a scraper?
Yes. Included components are one Polycell Polyfilla 396 g tube, one scraper and one fine sanding block. The bullets describe a Decex 3 inch scraper and a flexible 120 grit block.
Can the filler be used outdoors?
The bullets say indoors and outdoors on plaster, masonry, concrete and brickwork, and holes up to 10 mm deep. There is no separate water-resistance field.
How long before you can recoat?
The bullets say surface dry in 1 to 2 hours, recoatable in 2 hours, and drillable once fully set. The six UK reviews do not time a cure.
Palace interior patching plaster, part 64-16, is a 1.5 kg gypsum powder at about £2.49 on amazon.co.uk, with 4.5 from 571 reviews. All 50 texts in the saved listing are from the United Kingdom. The item weight is 1.42 kg. The bullets say you mix it with water at 1:2.5, use it indoors on walls and ceilings, and sand or paint it. UK reviews like the price for ceiling holes and missing skim. Several say the mix went off in about 5 to 10 minutes, and some found it gritty or too hard to sand. It is the best value here by price per listed kilogram among products with at least 500 reviews, if you will mix small batches.
Pros
Cons
Best for: Small interior patches in plaster where you will mix only what you can place in a few minutes.
Less suitable: You want a ready-mixed tub, a full-wall finish coat, or a stated non-toxic claim.
Specifications
Common questions
Can Palace patching plaster be used on a ceiling?
The ceiling question on the listing is unanswered. The bullets say walls and ceilings, and UK reviews include holes left after light fittings.
How long does the mix stay workable?
The bullets call it fast-setting and write the mix as 1:2.5 without saying which figure is water. Several UK reviews say a batch was unusable after about 5 to 10 minutes, not the hour they expected from the packet.
Is the powder described as non-toxic?
The non-toxic question is unanswered, and the bullets do not make that claim. The material field says gypsum and the usage field says interior.
Sika SikaWall all-purpose ready-mixed filler, model 480176, is a 600 g tub at about £4.49 on amazon.co.uk, with 4.4 from 5,464 reviews. All 50 texts in the saved listing are from the United Kingdom. The bullets allow plaster, brick and wood, to 9 mm deep and 25 mm wide, indoors or outdoors if an outdoor repair is sealed with oil-based paint. The water-resistance field says not water resistant. The volume field says 600 millilitres beside 600 g. UK reviews like a soft fill on dents and dislike a cure that is hard to sand, sagging, smell and tubs that looked half empty. It suits a named all-purpose tub when you accept a hard sand.
Pros
Cons
Best for: General interior gaps in plaster, brick or wood up to the stated 9 mm, if you shape the fill before it cures.
Less suitable: You need a waterproof filler, an easy sand, or a knife in the box.
Specifications
Common questions
Can SikaWall filler be used on plaster?
The plaster question on the listing is unanswered. The bullets say the formula is for repairs to plaster, brick and wood, up to 9 mm deep and 25 mm wide.
Is this filler waterproof?
The waterproof question is unanswered. The water-resistance field says not water resistant. Outdoor fixes are told to be sealed with an oil-based paint.
Does the tub include a knife?
Included components are the 600 g filler only. One UK review used a wallpaper scraper. The bullets say you apply it straight from the tub.
Five amazon.co.uk listings were scored on 21 October 2026 from the stored listing files and the UK review texts kept for each ASIN. This was not a lab test of shrinkage, sanding effort or water resistance. The numeric score is the amazon.co.uk star line times 20, so 4.6 becomes 92 and 4.8 becomes 96. A seller depth line, dry time or water claim stays a seller claim. The top pick is the highest star line among listings with at least 500 reviews. The best value is the lowest shelf price per listed kilogram in that same group. A clash on the same page, such as a volume field beside a different unit count, is recorded in the note. It is not a second score.
Amazon star line
40%The score is the stored amazon.co.uk star line times 20. A 4.8 becomes 96 and a 4.4 becomes 88. Stars are the listing average, not a lab finish test.
Review sample
30%A badge needs at least 500 amazon.co.uk reviews. Six reviews and fifteen reviews stay outside the top pick and the best value, even when the star line is high.
Price per listed kilogram
20%Best value is the lowest shelf price per listed kilogram inside the 500-review group. A cartridge priced by millilitres is not forced into that kilogram line.
Depth, form and water line
10%Form, stated depth and the water line are recorded in the table. A missing depth or a clash between fields is noted. It does not change the star score.
Start with the size of the damage, then the depth on the pack, then powder or paste, then whether the surface is allowed to take that product. The notes below follow that order. None of these listings was lab-tested.
Indoor plaster on a UK decorating shelf is a repair compound for plastered walls and ceilings. You use it for a picture hook, a patch of skim lost to wallpaper, or a small ceiling hole. A 25 kg bag of finishing plaster is a different product, for a whole wall. British Gypsum describes a finish coat at a nominal 2 mm, and BS EN 13279-1:2008 covers gypsum binders and plasters used as an internal finish. A small tub does not do that job.
A crack that is wide, stained or keeps returning is not a tub job. Rigid filler bridges a gap that is still moving, then the line comes back. Call a plasterer before you buy another pack.
The fine filler caps layers at 3 mm. A decorating guide puts builds above 10 mm on in layers. The cartridge states no millimetre depth. Leave each layer to dry. A single deep plug is a common failure.
The patching plaster is fast-setting. UK reviews often report about 5 to 10 minutes of working time. Mix a little. Sanding dry gypsum makes dust. The Health and Safety Executive wants that dust controlled with extraction.
Decide the job before the tub. Hairline cracks and shallow nicks suit a fine ready-mixed filler. A lost patch of skim, or a ceiling hole after a light, needs a powder or a product with a stated depth, built in layers. A whole wall needs bagged finish plaster. British Gypsum describes that finish at a nominal 2 mm under BS EN 13279-1:2008. A 600 g tub and a 1.5 kg bag are not that bag. Then read the depth on the pack in front of you. The fine filler says layers of no more than 3 mm.
Powder sets after you mix it. UK reviews of the interior patching plaster often report 5 to 10 minutes of working time, not the hour some buyers expected from the packet. The maker shop page says the powder sets within 2 hours. Treat that as a set time. Mix only what you can place. Ready-mixed tubs stay usable only while the lid seals. Reviews of the fine filler and the all-purpose paste include lids that leaked or paste that hardened in the pot. Listings say you can sand and paint the cure.
Three typical situations, each with a recommendation from this comparison.
A first decorating job, with a filling knife already in the drawer, is a shallow interior nick. Palace fine surface filler, model 68-4, is a 600 g ready-mixed tub at about £1.25, with 4.6 from 2,247 reviews. The bullets keep deeper repairs to layers of no more than 3 mm.
A small ceiling hole, or a patch of skim lost to wallpaper, suits a powder if you mix only a little. Palace interior patching plaster, part 64-16, is 1.5 kg at about £2.49, with 4.5 from 571 reviews. UK reviews often report about 5 to 10 minutes of working time.
If you do not own a knife or a sanding block, the kit puts a 396 g tube, a 3 inch scraper and a 120 grit block in one box at about £13.90. The bullets say holes up to 10 mm. The review line is 4.6 from 15, so the sample is small.
The top pick is Palace fine surface filler, model 68-4, a 600 g ready-mixed tub at about £1.25 with 4.6 from 2,247 reviews. It has the highest amazon.co.uk star line among listings with at least 500 reviews. The bullets keep deeper repairs to layers of no more than 3 mm. It is a shallow interior filler. The best value is Palace interior patching plaster, part 64-16, at about £2.49 for 1.5 kg, with 4.5 from 571 reviews. That is about £1.66 per listed kilogram, the lowest shelf price per kilogram in the same 500-review group. Mix small batches. UK reviews often report about 5 to 10 minutes of working time.
Palace interior patching plaster 1.5 kg
Lowest shelf price per listed kilogram in the 500-review group, about £1.66 per kilogram at about £2.49 for 1.5 kg.
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 sources from the research digest, last checked on 22 October 2026. Shelf prices and star lines are the amazon.co.uk figures stored on 21 October 2026. The price band is this set, not a market average. No listing was lab-tested.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the stored amazon.co.uk figures, not a live crawl. We did not lab-test these fillers.
