CQS42A
CQS42A Silver patina (metallic, solvent-borne)
Silver metallic solvent-borne patina. Sprayed over sanded PU or acrylic primer/enamel; after 5–10 minutes the excess is wiped back by hand with Scotch-Brite or steel wool so the silver stays in the pores, profile recesses and on the edges, giving an aged / decapé look with a metallic shimmer. Fast-drying, easy to wipe back, very low consumption. Must be top-coated with clear lacquer.
- Ageing (patinating) indoor furniture and wooden items
- Silver in the pores of open-pore oak (decapé)
- Patina over enamel on raised-panel and carved doors
- Finishing PU-foam / polystone mouldings, frames, décor
- Ageing APL800XX metallic enamel
- Desert Rose effect (over crystallised HTL10001)
- Restoration work (CQS70 42001 aerosol)
Mix calculator
Ask about CQS42A
Answers are based on the CQS42A data and the products it mixes with.
Mixing matrix
- % by weight: 100–200 %official% by volume: 100–200 %official
Standard reduction for spraying (official CQS42A and CQS42 pages, dealer).
Dealer: S10 dries faster and gives a harder film; S2000 (dedicated patina thinner, low aggressiveness) dries slightly slower but wipes/sands back more easily. Ease of removal is tuned with the thinner. 2019 catalog: S10 = 'normal removal', for decapé; S2000 = 'good removal', for PU foam; 100–200 %.
- S10Thinner% by weight: 0–200 %dealer% by volume: 0–200 %dealer
CQS42410 'champagne' only — dealer allows it neat (0 %).
With little thinner it lays down heavier and is harder to wipe back.
- % by weight: 100–300 %catalog
Wider range from the 2025–2026 catalog — for a lighter, sheerer patina.
Catalog doesn't say weight or volume. S10: 'fast, strong solvency… patinas'; S2000: 'fast evaporation, low aggressiveness — patinas'.
- S10Thinner% by weight: 100 %schedule
t-color.ru schedules: decapé oak (acr.), open-pore oak doors (acr.), PU-foam items (PU).
1:1 with S10; 80–100 g/m² (decapé, PU foam; the open-pore schedule gives no rate).
- S13Thinner
Alternative per the catalog thinner table (S13 — fast, 'stains, patinas…').
Not named for CQS42 specifically; no ratio given — use as S10 (100–200 %).
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Thinner | S10 / S2000 | 100–200 %official | 100–200 %official | Standard reduction for spraying (official CQS42A and CQS42 pages, dealer).Dealer: S10 dries faster and gives a harder film; S2000 (dedicated patina thinner, low aggressiveness) dries slightly slower but wipes/sands back more easily. Ease of removal is tuned with the thinner. 2019 catalog: S10 = 'normal removal', for decapé; S2000 = 'good removal', for PU foam; 100–200 %. |
| Thinner | S10 | 0–200 %dealer | 0–200 %dealer | CQS42410 'champagne' only — dealer allows it neat (0 %).With little thinner it lays down heavier and is harder to wipe back. |
| Thinner | S10 / S2000 | 100–300 %catalog | — | Wider range from the 2025–2026 catalog — for a lighter, sheerer patina.Catalog doesn't say weight or volume. S10: 'fast, strong solvency… patinas'; S2000: 'fast evaporation, low aggressiveness — patinas'. |
| Thinner | S10 | 100 %schedule | — | t-color.ru schedules: decapé oak (acr.), open-pore oak doors (acr.), PU-foam items (PU).1:1 with S10; 80–100 g/m² (decapé, PU foam; the open-pore schedule gives no rate). |
| Thinner | S13 | — | — | Alternative per the catalog thinner table (S13 — fast, 'stains, patinas…').Not named for CQS42 specifically; no ratio given — use as S10 (100–200 %). |
Percentages are per 100 parts of component A.
Characteristics
- Density
- 0.83 ± 0.01 g/cm³ (удельный вес)dealer
- Drying · Full dry (min)
- 10 mindealer
- Drying · Full cure
- 0.167 hdealer
- Drying · Before wipe-back (min)
- 5–10 minschedule
- Drying · Conditions
- 20 °C (dealer); 20–25 °C (schedules)
- Fast drying
- yescatalog
- Standard
- ТУ 2388-009-86718770-2010dealer
- Thixotropy
- norecommended
Colours
- CQS42A · silver
- CQS42 · silver
- CQS42001 · silver
- CQS42410 · champagne
Application
Conventional spray
- Consumption
- 80–100 g/m²official
- Coats
- 1dealer
- Flash-off
- 5–10 mindealer
- Nozzle
- 1.3–1.5 mmrecommended
- Pressure · air
- 1.5–2.5 bar at gun inletrecommended
- Spray viscosity
- ≈11–14 s DIN4 (practically solvent-thin)recommended
Shake/stir before filling and keep agitating — metallic flake settles. Lay a light even wet coat, filling pores and recesses; don't flood. After 5–10 min wipe back with Scotch-Brite (07448 / S UFN, dealer says K600) or No.2 steel wool.
HVLP
- Consumption
- 80–100 g/m²official
- Nozzle
- 1.3–1.5 mmrecommended
- Pressure · air
- 1.5–2 bar at gun inlet (trigger pulled), cap ≤0.7recommended
Narrow the fan for profiles; 15–20 cm distance (advice). 'Wash-out' effect (special-effects catalog, shown with CQS 21–26): mist neat S10 at low pressure over the fresh patina.
Airmix (air-assisted airless)
- Nozzle
- 0.23–0.28 mm (09–11 thou), fine-finish tiprecommended
- Pressure · fluid
- 4–8 barrecommended
- Pressure · air
- 1–1.5 barrecommended
Production lines only; pump filter no finer than 100 mesh because of the flake; hand wipe-back still required.
Cloth or pad
Officially 'spray + rub': after spraying, the excess is rubbed back by hand with Scotch-Brite or steel wool.
Other
CQS70 42001 'silver' aerosol (2019 catalog; Restoration leaflet: CQS70 coloured/metallic, tinted to order in batches of ≥24 cans) — for touch-up and small jobs.
Process and compatibility
- Substrate preparation
- Over cured, sanded PU/acrylic primer or enamel. Dealer instructions for CQS42A: sand P80–120 → APS20 primer 120 g/m², 4 h → sand P280–320 → APL20 SM enamel 120 g/m², 3 h → patina. t-color schedules: APS20/APL20 or ATS20 on oak (P240–P320 + pads), PPS20040 + PPL20 on PU foam (K120 pads).dealer
- Goes over
- APS20 / PPS20 / APL20 / APL20 SM / ATS20 / PPL20 / RAL/NCS PU or acrylic enamels / ATL20 SM (in the APL800XX metallic-enamel scheme) / HTL10001
- Sanding
- Excess is taken back by hand with abrasive pads: Scotch-Brite 07448 / S UFN (schedules), K600 (dealer) or No.2 steel wool (PU-foam schedule). Special-effects catalog: once dry the patina is 'sanded back', staying in pores, recesses and on edges. Avoid sandpaper on the patina — it cuts through the enamel easily (advice, not sourced).schedule
- Temperature and humidity
- 20–25 °C for application and flash.schedule
- Don'ts
- Don't leave it without clear lacquer — it isn't a topcoat; the silver will rub off and tarnish.
- Don't spray over uncured or unsanded primer/enamel — it grabs everywhere and won't wipe back.
- Don't wait too long before wiping: past ~10 min it gets harder, especially with S10.
- Don't flood it — 80–100 g/m² is the already-reduced wet amount.
- Keep it stirred — the metallic flake settles and the shade drifts.
Storage
- Packaging
- 1 л,5 лdealer
- Aerosol
- CQS70 42001 — патина металлизированная серебро, аэрозоль (CQS70 = патина в баллончике; колеровка под заказ партией от 24 шт.)catalog
Safety: Solvent-borne and flammable. Spray in an extracted booth, wear an organic-vapour respirator and gloves; keep patina-soaked rags/pads in a closed metal bin.
Used in finishing systems
Mixed into
Sources
Value tags: “official”, “dealer”, “catalog”, “schedule” are Technocolor data; “workshop” is from our own datasheets; “recommended” is our engineering estimate (hover to see the reasoning).
- Official CQS42A: properties, spray 80–100 g/m², S10/S2000 100–200 % by weight and volume
- Official CQS42 (slug cqs421): identical data
- Dealer CQS42A: mix table S10/S2000 100–200 %, step-by-step instruction APS20 → APL20 SM → CQS → ATL20 SM, price/packs
- Dealer CQS42001: S10 vs S2000 behaviour, 1 coat, 5–10 min, full dry 10 min at 20 °C
- Dealer CQS42410 champagne: 60–100 g/m², S10 0–200 %, full dry 10 min, sold per kg
- Kazakh dealer (search snippet): specific gravity 0.83 ± 0.01, ТУ 2388-009-86718770-2010, certificate — UNVERIFIED (site 503; URL is the CQS 41 gold card)
- Schedule decapé oak: CQS 100 + S10 100, 80–100 g/m², 5 min
- Schedule open-pore oak: CQS 100 + S10 100, 5 min
- Schedule PU foam: CQS 100 + S10 100, 5–10 min, steel wool No.2
- Application methods (Airmix air 1–2 bar, fluid ≤20 bar)
- Technocolor catalog 2019 «Лаки и краски для профессиональной отделки древесины» (readkong copy): CQS metallic colours incl. CQS42001 серебро, CQS42/1 итал. серебро, CQS42410 шампань; S10 (decapé) / S2000 (PU foam) 100–200 %; aerosol CQS70 42001 серебро
Not covered by the sources
- Solids % not published
- Viscosity of as-supplied patina not published
- Lightfastness / chemical resistance not published (protected by topcoat)
- Shelf life and storage temperature not published
- Catalog 100–300 % thinner range not stated as weight or volume
- Density/ТУ only from a Kazakh dealer search snippet (site unreachable) — unverified
- No official nozzle/pressure data — all spray parameters derived
- No official TDS PDF or SDS found online
- CQS42 (slug cqs421) = CQS42/1 'Italian silver' inferred from 2019 catalog only
- CQS70 42001 aerosol: no live dealer page, no technical data
- Shelf life for CQS42: not published (sister CQS10049 dealer page says 12 months)