5kg
Covers
20–55 sq ft
1 coat, absorbent mineral wall
Best For
Repairs, hole-filling, and a single feature or damp-room wall.
LIME UNIVERSAL SCRAPER · ART. 683
The white lime filler that smooths humid, mould-prone Indian walls.
LEINOS 683 — a fine, very white lime filler in powder form for interior mineral walls. Mixed with water and pulled on 1–3 mm with a trowel, it fills holes and smooths surfaces; its high alkaline pH (≈13) keeps it moisture-regulating and mould-preventing. The lime base beneath 665 and 667. Made in Germany by Reincke Naturfarben.
Fine white lime fillerMoisture-regulating · high pH ≈13Mould-preventingSolvent-free powder
Mechanism & Use
How LEINOS 683 lime filler works.
A powder of white lime hydrate and natural hydraulic lime, bodied with marble and limestone flour. Mixed with water it fills holes and smooths walls; it sets first by a hydraulic reaction, then cures fully by carbonation into a calcium-carbonate surface continuous with the mineral wall. The wall keeps breathing, and the high alkaline pH makes the surface mould-preventing.
01
Fills holes and smooths whole walls
One lime putty for two jobs — press it into holes, gaps, and hairline cracks with a filling knife, or skim it across a whole wall in 1–3 mm layers and felt it smooth. It can also be left as an exposed decorative texture. The very white, fine grain gives a clean mineral base for the lime topcoat.
02
Hydraulic set, then carbonation binds it to the wall
The natural hydraulic lime gives an initial set within the first day (very slow above 3 mm). Over the next 2–3 days and beyond, atmospheric CO₂ carbonates both lime fractions into microcrystalline calcium carbonate — the same mineral the wall is built from. A mineral surface continuous with the wall, not a filler skin on top. No silicate, no plastic film.
03
Breathable and moisture-regulating
The cured lime stays open-pore. Water vapour passes freely in both directions, so monsoon humidity and condensation are buffered instead of trapped behind a film. The filler regulates the wall’s moisture rather than sealing it — the property that lets the lime topcoat perform in damp rooms.
04
Mould-preventing high-pH surface
Fresh and curing lime sits at pH ≈ 13. The manufacturer states this high alkalinity, together with its diffusion capability, makes 683 ideal for mould remediation (Schimmelsanierung) — the protection is the lime’s own high pH. (Not a tested antimicrobial specification; we make no such claim.)
Where It Lives
Where 683 Lives
Damp-room wall preparation before lime paint
Mumbai, Goa, Kochi, Chennai bathrooms, kitchens, and utility walls. 683 fills and smooths the mineral wall into a breathable, high-pH base so 665 Lime Paint or 667 Lime Brush Rendering performs where standard emulsion filler bubbles and peels under steam and monsoon humidity. Avoid permanently wet shower zones and standing water.
Rajasthani heritage haveli lime-plaster repairs
Jaipur, Udaipur, Jodhpur, Bikaner heritage residences and hotels. A lime filler compatible with centuries-old lime plaster — it fills losses and cracks with the wall’s own mineral chemistry, keeping heritage breathability alive with no plastic film and no gypsum incompatibility.
Mould-remediation base coat (Schimmelsanierung)
High-pH lime filler specified over remediated walls in damp-prone buildings — the alkaline mineral surface is hostile to re-colonisation. Pre-treat any active mould growth with a dedicated remover first, fill and smooth with 683, then finish with a lime topcoat.
Decorative textured feature walls
Contemporary Bangalore, Delhi, and Mumbai interiors wanting a hand-worked mineral texture. 683 can be left as an exposed decorative structure and finished with a tinted lime topcoat for tone-on-tone depth a flat paint cannot give.
Gypsum-fibreboard & sound old-coating skim
Apartment fit-outs and renovation over gypsum fibreboard (Gipsfaserplatten) or firmly-adhering old coatings — primed with 621/622 first, then skimmed smooth with 683 as the lime base for the mineral topcoat.
Whole-wall smoothing before 665 / 667
Bangalore, Pune, Mumbai apartments and villas. Skim standard cement-plastered walls flat and even with 683 over 622 primer, then overcoat with 665 Lime Paint or 667 Lime Brush Rendering for a soft mineral heritage finish.
Compliance · Natural Ingredients · EU
Documented lime chemistry. Solvent-free mineral powder. High-pH mould-preventing base.
Three anchors that let architects specify 683 as the lime base for heritage, humid-room, mould-remediation, and decorative mineral projects without disclaimers.
Application Standard
VOB/C DIN 18363
Substrate preparation and application specified to the German VOB/C DIN 18363 standard for painting and coating works.
Institutional Pledge
InVeNa Member
Reincke Naturfarben — full-ingredient-disclosure pledge for natural building products.
The TDS is downloadable below; the SDS is supplied on request with the full hazard register and the calcium-hydroxide and natural-hydraulic-lime disclosure. Where you need a written specification packet — full ingredient declaration, a lime-compatibility statement for a heritage-conservation project, or a humid-room / mould-remediation performance brief for a hotel specification — it is available to architects and contractors on request. Use Get Expert Advice above. 683 is a mineral wall filler, not a toy-safe or food-contact product.
Read The Full TDSStep by Step
How to Apply
Substrate inspection & prep — the wall must be dry, sound, absorbent, and clean. Prepare all substrates to VOB/C DIN 18363; remove dust, loose material, and any non-load-bearing plaster. Always lay a test area of at least two square metres and let it dry fully to judge adhesion and crack behaviour before doing the whole wall.
Prime absorbent and chalking surfaces with LEINOS 621 Silicate Primer or 622 Mineral Plaster Primer before filling — a bonding, absorbency-regulating ground coat evens the suction so the lime filler cures uniformly. On sound, evenly absorbent mineral plaster the primer improves adhesion and reduces suction spotting.
Mix — blend 20 kg of powder lump-free with approximately 6 litres of clean water to a workable putty. Mix only as much as you can use within five hours. Avoid raising and breathing the dry powder; add powder to water and stir with a paddle until smooth and creamy.
Fill — press the creamy white lime putty firmly into holes, gaps, and hairline cracks with a stainless filling knife and pull it flat, or skim the whole wall in 1–3 mm layers. Above 3 mm the layer dries very slowly. Work within the five-hour window while the mix stays workable.
Smooth & felt — pull the surface flat and even with a smoothing trowel, then felt it to the finish you want: glass-smooth for a painted base, or a fine hand texture to leave exposed. The very white, fine grain gives a clean mineral canvas for the lime topcoat.
Cure & overcoat — allow minimum 24 hours drying (longer above 3 mm) and a carbonation period of at least 2–3 days. Once cured, overcoat with 665 Lime Paint for a flat matt wall or 667 Lime Brush Rendering for texture. Light cloudiness, glossy sinter patches, and gentle tone variation are the natural look of lime, not a defect.
Application Conditions
- Ambient and surface temperature above +5 °C; substrate dry, sound, and absorbent.
- Prepare all substrates to VOB/C DIN 18363; a bonding, absorbency-regulating primer (621 Silicate Primer or 622 Mineral Plaster Primer) is recommended before filling.
- Mix only as much as can be used within 5 hours; above 3 mm layer thickness drying is very slow.
- Protect eyes, skin, and alkali-sensitive adjacent surfaces — lime is alkaline.
Coats & Recoating
- Sold by weight and used by application thickness — not coat-count based.
- Mix 20 kg powder with approx. 6 litres clean water; apply within 5 hours in 1–3 mm layers.
- Overcoatable with LEINOS lime-paint and silicate-paint products after full carbonation.
Cleaning & Storage
- Clean tools immediately after use with water.
- Store in a dry, cool place; protect from moisture and freezing. Shelf life in closed packaging at least 12 months.
First time with Lime Universal Scraper? Our technical team runs complimentary on-site walkthroughs for contractors — full application protocol, start to finish.
System & Substrates
The white lime base for interior absorbent mineral walls.
683 fills and smooths the wall; a 621/622 primer regulates suction before filling, and 665 Lime Paint or 667 Lime Brush Rendering finishes on top. The lime filler behaves as a chemically continuous mineral surface, not a filler skin.
The Coating System
Primer plus topcoat — the full chain.
Lime Filler · fill & smooth683Lime Universal Scraper
Tinting On Site
Mix your own custom shade at the site with LEINOS pigments.
Long-term Care
Extends the life of the finish over the years.
Substrate Fit
683 works on — and what it doesn’t.
Suitable
Recommended substrates
- Mineral interior substrates — lime plaster, cement plaster, masonry (sound and absorbent)
- Gypsum fibreboard (Gipsfaserplatten)
- Firmly-adhering, sound old coatings
- Lime-containing substrates and lime finishing plasters
Honest Limits
Where to use a different product
- Wood substrates — lime alkalinity stains raw wood permanently. Use the LEINOS wood-finish line instead, starting with LEINOS 290 Interior Hardwax Oil
- Metal — lime alkalinity corrodes aluminium and zinc on contact. Mask and protect adjacent metal surfaces.
- Loose, dusty, flaking, or non-load-bearing substrates — remove back to sound material, dust down, and prime with 621/622 first.
- Permanently wet or submerged zones (shower stalls, standing water) — use a dedicated wet-area system.
- Exterior surfaces — 683 is for interior use only per the TDS.
Use With Care
Working safely with 683
- Wear chemical-resistant gloves, protective clothing, and eye/face protection. Lime is alkaline — contact causes serious eye damage (H318), not mere irritation. Contains calcium hydroxide and natural hydraulic lime.
- Causes skin irritation (H315). Wash splashes off skin with plenty of water; if irritation persists, seek medical advice. Remove and wash contaminated clothing before reuse.
- On eye contact, rinse gently with water for several minutes; remove contact lenses if possible and continue rinsing; seek medical advice if irritation persists.
- Avoid raising and breathing the dry powder — mix in a well-ventilated space and avoid stirring up clouds of powder. Use only outdoors or in well-ventilated rooms.
- Keep out of reach of children. Avoid release to the environment. GHS-05 / Danger. Safety Data Sheet (SDS) supplied on request from LEINOS India for the full hazard register.
Coverage & Pack Sizes
Pick the right pack for the wall.
Sold and used by weight: approximately 1 kg per millimetre of layer thickness per m². A 1 mm full-wall skim spreads far; deep hole and crack fills consume more. German TDS: pack sizes 5 kg / 10 kg / 20 kg, mixed 20 kg : approx. 6 L water.
10kg
Covers
40–110 sq ft
1 coat, absorbent mineral wall
Best For
Single-room smoothing or multi-wall repair work.
20kg
Covers
80–220 sq ft
1 coat, absorbent mineral wall
Best For
Whole-wall skim, multi-room project, or heritage renovation.
sq ft
Enter your area to see how much material — and the most efficient pack mix — you’ll need for 1 coat.
Related Work
Mineral surface projects from our portfolio
Documented mineral surface projects. Captions show which LEINOS finish was used.
Full Declaration
Composition
Every ingredient declared on the label. The Trust Hub explains what each one does and the standards behind it.
Marble + Limestone Flour
Calcium-carbonate mineral fillers — provide the fine, very white grain, body, and the smooth workable putty consistency. Inert; no further reaction during cure.
White Lime Hydrate (Air Lime)
Calcium hydroxide (in India: fat lime) — the primary binder. Cures by atmospheric CO₂ reaction into microcrystalline calcium carbonate, the chemistry that makes it a true lime filler.
Natural Hydraulic Lime
Gives an initial hydraulic set within the first day and added strength and crack resistance in thicker fills, before carbonation completes the cure. No silicate binder — the surface never silicifies, it carbonates.
Methylcellulose + Plant Polysaccharide
Plant-derived rheology stabilisers keeping the lime putty smooth, workable, and water-retentive under the trowel. Mineralise during carbonation; not a film-forming polymer.
Got Questions?
Frequently Asked
Quick answers on formulation, application and Indian-climate suitability. Pulled from our full FAQ and TDS library.
- Many decorative finishes are wipe-clean once fully cured. Check the specific product for wet abrasion class rating.
- Sold by weight and used by application thickness — not coat-count based. Mix 20 kg powder with approx. 6 litres clean water; apply within 5 hours in 1–3 mm layers. Overcoatable with LEINOS lime-paint and silicate-paint products after full carbonation.
- LEINOS decorative finishes have minimal odour from natural ingredients. The room can typically be used within 24 hours after application.
- It is a fine, very white lime filler in powder form for interior mineral walls — you mix it with water and either press it into holes, gaps, and cracks or skim it across a whole wall in 1–3 mm layers to smooth it. It can also be left as an exposed decorative texture. It is the lime base underneath the LEINOS lime topcoats, 665 Lime Paint and 667 Lime Brush Rendering.
- Two reasons. The cured lime stays vapour-open, so monsoon humidity and condensation pass through the wall instead of being trapped behind a film. And fresh and curing lime sits at a high alkaline pH of about 13 — the German data sheet states that this high pH, together with its diffusion capability, makes 683 ideal for mould remediation (Schimmelsanierung). Pre-treat any active mould with a dedicated remover first, then fill and finish with the lime system. Avoid permanently wet shower zones.
- Ordinary fillers are gypsum- or polymer-based and form a set plug or a plastic-bound skin. 683 is lime: white lime hydrate plus natural hydraulic lime. It sets first by a hydraulic reaction and then carbonates into calcium carbonate — the same mineral the wall is built from — so it becomes chemically continuous with a lime or mineral wall and keeps it breathing. That is why it is the correct base under a lime paint or render, where a gypsum filler would be incompatible.
- The German data sheet recommends a bonding, absorbency-regulating ground coat with 621 Silicate Primer or 622 Mineral Plaster Primer before filling — especially on chalking or very absorbent walls. It evens the suction so the lime filler cures uniformly. Always prepare substrates to VOB/C DIN 18363 and lay a test area of at least two square metres first.
- Blend 20 kg of powder lump-free with approximately 6 litres of clean water to a workable putty, and apply it within about five hours. Coverage is roughly 1 kg per millimetre of layer thickness per square metre, so a thin skim spreads far and deep fills use more. Layers thicker than 3 mm dry very slowly. Allow minimum 24 hours drying plus a 2–3 day carbonation period before overcoating.
- No. Lime is alkaline — it stains raw wood permanently and corrodes aluminium and zinc — so 683 is for mineral substrates only; for wood use the LEINOS wood-finish line. It is also an interior product per the TDS; for exterior mineral walls use the LEINOS exterior-mineral facade range.
For Architects & Specifiers
Downloads
Technical and safety documents — citable in project specifications.
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Written by the LEINOS India technical team, in collaboration with
Reincke Naturfarben R&D, Lower Saxony.
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