Mineral Surfaces · Solutions
A Pondicherry French-quarter townhouse in deep saffron limewash, a Portuguese-era Goa villa with ochre-pigmented lime render, a colonial-Bombay sea-front block in cream-grey cement plaster, a contemporary Bangalore residential bungalow in warm mineral-paint envelope — Indian façades carry both heritage substrate chemistry (lime, ochre, traditional mineral pigments) and modern engineered render (cement-lime, polymer-modified plaster, WDVS/EIFS insulation panels). The architectural envelope is the building's slowest-cycling design surface: every coating decision affects 10–25 years of weather, UV, and substrate dialogue. The system documented for that reality is the LEINOS sol-silicate façade line — Mineral Plaster Primer 622, ProfiGrund Quartz Filler 610, Profi Fixative 611, ProfiSol Facade Paints 612 (fine) and 613 (coarse), UniverSil Facade Paints 614 (fine) and 615 (coarse) — assembled as a three-layer mineral envelope tested per DIN EN 1062-3 (water permeability), DIN EN ISO 7783 (sd-value, water-vapour diffusion), and BFS Merkblatt Nr. 26 (colour stability A1).
Find your application
A contemporary Bangalore villa with warm cream-grey cement-lime render, a Mumbai high-rise residential block in tinted mineral envelope, a new-construction Pune apartment façade in soft ochre. Modern rendered façades — typically cement-lime or polymer-modified render on a 28-day cure schedule — route to the full mineral envelope: Mineral Plaster Primer 622 (suction-control on absorbent fresh render) → ProfiGrund Quartz Filler 610 (0.4 mm fibre-reinforced ground coat, crack-bridging) → ProfiSol Facade Paint 612 fine-grain or 613 coarse-textured (sol-silicate, sd-value 0.01 m, A1 colour stability). Custom mineral-pigment tinting supports architect-specified colour boards; the silicate bond carbonates over months into a permanent mineral envelope that ages by gentle chalking rather than peeling.
7 compatible productsWater-based silicate primer that evens absorbency on interior mineral walls — lime plaster, cement, clay, brick, aerated concrete, gypsum board. The prep coat under LEINOS lime, silicate, and natural mineral paints.
View product detailsFibre-reinforced quartz filler primer for mineral facades — levels hairline cracks and plaster repairs up to 0.4 mm.
View product detailsProfessional fixative for workability control — serves as primer and binder for mineral facade systems.
View product detailsSol-silicate facade paint with mineral character — silicification-capable, water-vapour diffusible, available in 200+ colours.
View product detailsSystem & Substrates
For the broader exterior envelope including compound walls, boundary walls, and non-architectural exterior, see Exterior Walls. For heritage limewash chemistry on interior walls, see Interior Walls.
The Coating System
Primer plus topcoat — the full chain.
Topcoat Options
Choose the finish character; the primer underneath stays the same.
Mineral Plaster Primer 622 — silicate primer that controls suction on fresh modern render and creates the silicification base. Apply 28 days after render cure, never earlier. 1 coat brush or roller, dry 6 h, recoat 12 h.
Mineral Plaster Primer 622 — silicate primer for fresh cement-lime or polymer-modified render. Mandatory on new-construction substrate to control suction and prepare silicification. 1 coat, dry 6 h, recoat 12 h. Specify after 28-day render cure.
ProfiGrund Quartz Filler 610 — fibre-reinforced ground coat (0.4 mm) that equalises render texture and bridges hairline shrinkage cracks typical of new-construction substrate. Specified across the full elevation before the silicate topcoat.
ProfiGrund Quartz Filler 610 — fibre-reinforced sol-silicate ground coat (0.4 mm). Full-surface 1 coat, dry 12–16 h. Bridges new-render shrinkage cracks and equalises substrate suction before topcoat specification.
Pure sol-silicate topcoat — ProfiSol 612 fine (0.5 mm grain, default for smooth modern render) or 613 coarse (1.0 mm grain, where the architect specifies a textured tactile envelope). 2 coats, dry 12 h between, full silicification cure 14–28 days. Custom mineral-pigment tinting at factory batch.
ProfiSol Facade Paint 612 (fine, 0.5 mm) — pure sol-silicate. Default for smooth contemporary residential render. sd-value 0.01 m, A1 colour stability (BFS Nr. 26), pH ≥ 11 alkaline anti-algae/mould. 2 coats, recoat 12 h.
ProfiSol Facade Paint 613 (coarse, 1.0 mm) — same chemistry as 612 with coarser quartz aggregate. Specify where the architect wants a textured tactile envelope or where the underlying render carries visible relief that the topcoat should follow.
Step by Step
Confirm the render substrate has cured the documented 28 days minimum before any coating specification. Measure free-alkali pH on three sample points per elevation — pH ≥ 9 confirms the silicification window is open. Visually inspect for efflorescence (white salt bloom), hairline shrinkage cracks, and any prior coating residue. Modern Bangalore villa work typically pre-schedules render and coating in separate trade packages to honour this cure window; tender language should call out the 28-day lock explicitly to prevent contractor compression.
Apply a 200 × 200 mm test patch of the proposed primer + ground coat + topcoat stack on three locations per elevation (top corner, mid-elevation, base near plinth). After 48 h cure, run DIN EN ISO 2409 cross-cut with a six-tooth blade plus Tesa-peel pull-off test on each patch. Photo-document every patch against scale rule and elevation reference for the project file. Cross-cut score Gt 0–1 confirms specification readiness; Gt 2–5 routes back to substrate-repair, not coating substitution.
Specify scaffolding mesh + tarpaulin shield as a tender line item. Mesh deflects driven rain off the freshly coated elevation for the first 48 h of silicification. Sun-side elevations (south, west in most Indian latitudes) additionally require shade-netting against flash-cure under direct afternoon UV — schedule those elevations for the cool morning window only. North-elevation work proceeds first as the most forgiving exposure; coastal-site work additionally blocks salt-spray with the same mesh layer.
Stir 622 well — silicate primer separates between batches. Apply 1 even coat with a façade brush or short-nap mineral roller, working into corners, mortar-joint reliefs (if any), and reveal returns. Dust-dry 6 h, full recoat-ready in 12 h. Working temperature 5–30 °C, RH below 80%. The primer dries to a slightly sand-textured matte film; do not expect the gloss of an acrylic primer — the silicate bond is happening, not a film build.
Stir 610 well — fibre-reinforced ground coats settle hard. Apply 1 even coat full-surface with façade brush or trowel-and-float (depending on architect-specified texture). The 0.4 mm grain reads as a fine-textured veil that equalises substrate suction and bridges hairline shrinkage cracks up to 0.2 mm static width. Sequence: top of elevation working down, full-bay completion before break-line, to prevent banding at scaffold-board joints. Dry 12–16 h, recoat after 24 h.
Stir topcoat well — mineral pigments settle. Apply 1 even coat with façade brush or short-nap mineral roller, working corner to corner with wet-edge technique to prevent lap marks on the freshly silicifying surface. End-grain corners and reveal returns absorb more — let the silicate bond there. Recoat after 12 h dry. Sequence top-down per elevation; complete a full bay before scaffold break to keep colour batch continuous.
Apply the second coat the same way, wet-edge corner to corner. After the second coat, inspect every elevation in raking light morning and evening on the day after application — visible lap marks, run-off marks from drip lines, or banding at bay joints must be diagnosed and re-coated within 48 h while the silicate is still bonding. Past 48 h, a re-coat is a full new specification — the carbonated surface is already bonded.
Surface dust-dry 4 h, handle-ready 24 h. Full silicification cure 14–28 days — the silicate ion-exchange bond completes through ambient CO₂ uptake. Do not pressure-wash, mask-tape, or apply any post-treatment within the 28-day cure window. Documented re-coat cycle: 15–25 years inland (Bangalore, Pune, Hyderabad), 10–15 years coastal (Mumbai, Goa, Chennai). The envelope ages by gentle chalking, not peeling — colour wash-down approaching design tolerance is the trigger for re-coat, not bond detachment.
System Composition
Why It Works
Pick the Right Build
Mineral Plaster Primer 622 → ProfiGrund Quartz Filler 610 → ProfiSol Facade Paint 612 fine (2 coats, custom mineral-pigment tint to architect colour board). The default modern-residential stack — smooth envelope, A1 colour stability, 20+ year inland re-coat cycle. Schedule cool-dry season Oct–Feb.
Primer 622 + ProfiGrund 610 + ProfiSol 612 fine — full mineral stack
Mineral Plaster Primer 622 → ProfiGrund Quartz Filler 610 → ProfiSol Facade Paint 612 fine (2 coats). Same chemistry as inland residential — the mineral envelope outperforms acrylic-elastomeric on salt-air sites. Specify scaffolding mesh + tarpaulin on every elevation; schedule north first, south/west cool morning only. 10–15 year coastal re-coat cycle.
Primer 622 + ProfiGrund 610 + ProfiSol 612 fine — coastal-spec protocol
Mineral Plaster Primer 622 → ProfiGrund Quartz Filler 610 → ProfiSol Facade Paint 613 coarse (2 coats). The 1.0 mm coarse grain reads as a tactile textured envelope from the street — used on institutional, civic, and design-feature residential where the architect wants the texture to register at human scale.
Primer 622 + ProfiGrund 610 + ProfiSol 613 coarse — textured envelope
Standard new-build stack but with afternoon shade-netting on the west elevation and evening-only application window (substrate temperature monitored with IR thermometer to stay within 5–30 °C documented range). Coastal coast-specific protocol applies. Mineral envelope holds 12–18 year re-coat cycle on this exposure.
Primer 622 + ProfiGrund 610 + ProfiSol 612 fine — sun-side deferred-window spec
What to Expect
What to Avoid
Scope & Limits
This solution applies to the architectural exterior envelope of buildings — the visible weathering façade plane on residential bungalows and villas, mid- and high-rise apartment blocks, commercial buildings, institutional buildings, and heritage-restoration projects under preservation-grade specification. Substrates covered: lime-render and lime-mortar heritage façades, cement-lime render, cement plaster, polymer-modified render, fair-faced and form-cast concrete, dressed masonry (brick, dressed stone, concrete block), and WDVS/EIFS thermal insulation composite systems with mineral or synthetic outer render.
In the wild
Common Questions
Next step
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Adjacent applications
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