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Stains and dyesDye

CLT51

CLT51 Kromolux dye concentrate, cherry

Highly concentrated transparent dye (binder-free stain) from Milesi's Kromolux series in cherry. Very clear and even; at higher strength it goes dark while staying transparent. Dilutes with water or solvent, with or without a binder, and intermixes with any other Kromolux dye to hit a tone.

  • Staining all kinds of timber, veneer and solid
  • Furniture, fronts, mouldings and frames, general wooden articles
  • Cherry-toning light timbers (beech, birch, alder) and matching colour under PE, PU and NC lacquers

Mix calculator

g
Thinner750.0 %

When: Water dilution — less odour/VOC, raises the grain more and dries much slower (Milesi TDS: 8 h at 20 °C vs. minutes on solvent).

Additive

Ratio 100 : 750.0

ComponentWeigh out
CLT51part A58.8 g
WATERThinner441 g
Total500 g

Covers roughly 5.56 m² at 90 g/m².

Pot life of the mix: not applicable — single-component, no reaction; keep diluted mix closed and use within the shift.

Ask about CLT51

Answers are based on the CLT51 data and the products it mixes with.

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Mixing matrix

  • S10Thinner
    % by weight: 500–1000 %dealer% by volume: 500–1000 %dealer

    Fast, strong thinner — for fine-pored timber (beech, birch, maple, alder) and short flash-off between operations.

    Thinner selection per the Technocolor 2025–2026 catalog thinner table. S10 is also the gun-cleaning solvent per its official page.

  • S12Thinner
    % by weight: 500–1000 %dealer% by volume: 500–1000 %dealer

    Medium evaporation — medium-pored timber (cherry, walnut, tight ash); the default for a solvent-borne stain.

    S12 is the dye thinner per its official page, and it is the thinner used in the dye steps of the official schedules. The dealer also pairs S12 with CLT51 as a companion item.

  • S90Thinner
    % by weight: 500–1000 %dealer% by volume: 500–1000 %dealer

    Slow — open-pored timber (oak, ash), large panels, hot shop: stays wet longer, fewer blotches and lap marks.

    The CLT51 dealer table lists S90 explicitly ('slow dye thinner'), 500–1000 % by weight and volume; the dealer also pairs S90 under 'you will need with this item'.

  • WATERThinner
    % by weight: 500–1000 %official% by volume: 500–1000 %official

    Water dilution — less odour/VOC, raises the grain more and dries much slower (Milesi TDS: 8 h at 20 °C vs. minutes on solvent).

    Deionised (distilled) water only — tap water makes the dye flocculate and lose colour stability (dealer note). Before a water stain, raise the grain with a damp sponge, dry and denib at P180–P220. The dealer table has water in the same row ('…/ water', 500–1000 %); sibling CLT4's official page lists water with the same range.

  • LZC97Thinner
    % by weight: 500–1000 %official% by volume: 500–1000 %official

    Listed by Technocolor as a thinner. The Milesi TDS uses LZC97 as a small-share co-solvent alongside the main thinner (see the TDS rows).

    LZC97's exact function is not documented by Technocolor; no product page.

  • CFS1Additive
    % by weight: 0–200 %dealer% by volume: 0–200 %dealer

    Binder for the solvent-borne stain (with S10/S12/S90): locks the dye in, less bleeding/lifting when the sealer goes on, more even colour on end grain.

    Role: binder. CFS1 = solvent-borne and CFH1 = water-borne follows from the schedules (CFS1 paired with S12, CFH1 with water); the dealer's ОР/ВР labels are listed in the opposite order.

  • CFH1Additive
    % by weight: 0–200 %dealer% by volume: 0–200 %dealer

    Binder for the water-diluted stain.

    0 % = plain dye stain; with binder the colour holds better under the sealer.

  • LZC97 / LZC1000Thinner
    % by weight: CLT 1 : LZC97 0.5 : LZC1000 9.5 (≈ LZC97 50 % + LZC1000 950 %)datasheet

    Milesi's suggested solvent dilution. LZC1000 is a Milesi code with no published Technocolor equivalent; our interpretation is that S10/S12/S90 (Technocolor's listed CLT thinners) take its place.

  • LZC97 / WATERThinner
    % by weight: CLT 1 : LZC97 1 : water 14 (≈ LZC97 100 % + water 1400 %)datasheet

    Milesi's suggested water dilution.

  • LZC1000 / LZC1024 / LZC97 / LTC5 / WATERThinner
    % by weight: 500–800 %datasheet

    Milesi TDS: manual spray, fixed automatic airmix/airless, swinging-arm guns — 500–800 %; automatic rotating (carousel) gun — 700–1500 %.

  • CFS1 / S12Additive
    % by weight: CFS1 200 % + S12 500 %schedule

    Raised-panel doors (PU): stain 80–100 g/m², 5 min at 20–25 °C, then PTS20+C25+S50 sealer.

    The finishing schedule names the generic code 'CTU' (universal transparent dye). The CLT series (sibling codes) sits in the same 'Universal dyes' section on t-color.ru; CLT51 itself has no page, so the recipe is carried over as a guide; that mapping is our interpretation, not an explicit CLT51 instruction.

  • CFS1 / S12Additive
    % by weight: CFS1 150 % + S12 500 %schedule

    Mouldings and frames (UV): stain 80 g/m², 5 min at 25–30 °C, then VTS40041 UV sealer.

    The finishing schedule names the generic code 'CTU' (universal transparent dye). The CLT series (sibling codes) sits in the same 'Universal dyes' section on t-color.ru; CLT51 itself has no page, so the recipe is carried over as a guide; that mapping is our interpretation, not an explicit CLT51 instruction.

  • CFH1 / WATERAdditive
    % by weight: CFH1 400 % + вода/water 1000 %schedule

    Open-pore oak kitchen fronts: stain 80–100 g/m², 20 min at 20–25 °C, PTS60+C26+S50 sealer.

    This schedule is written for the water dye CTH, not CLT; 400 % CFH1 exceeds CLT51's dealer-listed 0–200 % — stay within 0–200 % for CLT51. Note: the official URL otdelka-stoleshnits-oblitsovannyh-shponom-buka-pu actually serves the schedule titled 'Open-pore finishing of oak kitchen fronts (Acr.)'.

Percentages are per 100 parts of component A.

Characteristics

Viscosity
24 ± 2 s, 24 ± 2 s
Drying · Conditions
20 °C, 70 % RH (TDS test conditions)
Drying · Room temp (solvent)
30" (as printed; LZC1000 thinner)datasheet
Drying · Room temp (water)
8 h (water thinner)datasheet
Drying · IR drying 60 °C (solvent)
10 mindatasheet
Drying · IR drying 60 °C (water)
20 mindatasheet
Pot life
not applicable — single-component, no reaction; keep diluted mix closed and use within the shiftrecommended
Thixotropy
norecommended
Gloss
not applicable — no filmrecommended

Colours

  • CLT51 · Cherry

Application

HVLP

Nozzle
1–1.3 mmrecommended
Pressure · fluid
gravity cup, no fluid pressurerecommended
Pressure · air
1.5–2 bar inlet (gun trigger pulled); ≈0.5–0.7 bar at caprecommended
Spray viscosity
as diluted (500–1000 %), ~water-thin — do not thin to a cup timerecommended
Consumption
80–100 g/m² ready mixdealer
Coats
1 even full wet pass (2 light crossing passes on large panels); add colour by a second pass, not by floodingrecommended
Flash-off · Solvent
5 min at 20–25 °C (CFS1+S12 mix)schedule
Flash-off · Water
20 min at 20–25 °C (CFH1+water mix)schedule
Recoat · Sealer (solvent)
after 1 min (thinned with LZC1000)datasheet
Recoat · Sealer (waterborne)
after 8 h (thinned with water) at 20 °C; 20 min in IR + warm air 60 °Cdatasheet
Sanding between coats
do not sand the stain coat itself; denib the first sealer coat at P240–P320recommended

Hold the gun square at 15–20 cm, 50 % overlap. On profiles do edges and recesses first, then the field. Stir the mix before filling.

Conventional spray

Nozzle
1–1.2 mmrecommended
Pressure · air
2–3 bar at gunrecommended
Consumption
80–100 g/m² ready mixdealer

Classic air spray — the mainstream method per the methods page (up to 40 % transfer).

Airmix (air-assisted airless)

Nozzle
0.18–0.23 mm (07–09 thou), narrow 20–40° fanrecommended
Pressure · fluid
4–8 barrecommended
Pressure · air
0.8–1.5 barrecommended
Consumption
10–20 g/m² (TDS figure — appears to be concentrate, see notes)datasheet

The Milesi TDS states 10–20 g/m² for automatic airmix — given the 500–800 % dilution this reads as concentrate, i.e. ~80–100 g/m² of ready mix.

Airless

Nozzle
0.18–0.23 mm (07–09 thou)recommended
Pressure · fluid
30–60 barrecommended
Consumption
10–20 g/m² (TDS figure, likely concentrate)datasheet

For hand work prefer airmix/HVLP — airless has a coarser fan and more blotch risk.

Automatic rotating spray

Consumption
5–20 g/m² (automatic rotating spray gun / carousel, TDS)datasheet
Dilution %
700–1500 % thinnerdatasheet

Milesi TDS: automatic rotating (carousel) spray gun — 5–20 g/m² at 700–1500 % dilution. This is not electrostatic as such; per the methods page any spray system can be electrostatic, but a water dilution then needs isolated equipment — use the solvent dilution there.

Process and compatibility

Substrate preparation
Sand flats P150 → P180 → P220; profiles with sanding mats/sponges K60–K80schedule
Goes over
bare sanded wood
Sanding
Never sand the dyed surface directly; sand the first sealer coat P240–P320 (flats) / K120 (profiles) per schedulerecommended
Temperature and humidity
TDS data at 20 °C / 70 % RHdatasheet
Don'ts
  • Don't dilute with tap water — deionised only
  • Don't exceed 200 % CFS1/CFH1 binder
  • Don't flood the surface — make a second light pass instead
  • Don't sand the bare dye coat — sand the sealer
  • Don't seal a water-diluted stain before it is fully dry (TDS: ~8 h at 20 °C or 20 min at 60 °C)

Storage

Shelf life
8 months from delivery (series TDS; CLT51 not named)datasheet
Storage temperature
18–25 °C, tightly closed, protected from moisturedatasheet
Packaging
1 Ldealer

Safety: Composition and hazard class are not published (no CLT51 SDS found). Treat the concentrate and S10/S12/S90 mixes as flammable: spray in an extracted booth, no ignition sources, A2P2 respirator and nitrile gloves; keep solvent rags in a closed metal bin.

Used in finishing systems

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).

Not covered by the sources
  • NO official t-color.ru page for CLT51 — LZC97 ratio and official confirmation of WATER taken from sibling CLT4's official page (same series)
  • dealer table row name truncated '…/ Вод' (water) — water code not printed explicitly
  • density / specific gravity for CLT51 (not in Milesi TDS; siblings 0.945–0.965)
  • solids_pct (blank in Milesi TDS, not on dealer page)
  • base vs composed colour and exact colour recipe — CLT51 absent from the 2006 Milesi TDS colour list
  • colour swatch / tone reference (no image or RAL/NCS description)
  • lightfastness rating (no sourced figure; cherry/red dyes typically fade fastest, untested)
  • hardness/elasticity/chemical resistance — not applicable to a binder-free dye on its own
  • LZC97 function and Technocolor product page
  • TDS room-temp drying with solvent printed as 30" (seconds in TDS notation, consistent with overcoat after 1'); schedule uses 5 min
  • consumption discrepancy: dealer 80–100 g/m² (ready mix) vs Milesi TDS 5–20 g/m² (apparently concentrate)
  • SDS / hazard classification for CLT51
  • no CLT51-specific TDS found (web search budget exhausted); Milesi CLT series TDS rev. I Oct 2006 used
  • CLT not covered in Technocolor 2025–2026 catalog (only CTU/CPS/CTH dyes)
  • dealer viscosity cup not stated (TDS series value is ISO 3 mm cup)
  • method 'electrostatic' in earlier draft was the TDS automatic rotating (carousel) gun — relabelled; no electrostatic-specific data exist