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Stains and dyesDye

CLT59

CLT59 Kromolux dye concentrate, Merbau

Highly concentrated transparent dye (binder-free stain) from Milesi's Kromolux series in Merbau (imitating the tropical hardwood — a warm red-brown; check the exact tone against a dealer sample). Very clear and even; at higher strength it goes dark while staying transparent. Dilutes with water or solvent, with or without a binder.

  • Staining all kinds of timber, veneer and solid
  • Furniture, fronts, mouldings and frames, general wooden articles
  • Toning and evening out colour variation under PE, PU and NC lacquers

Mix calculator

g
Thinner750.0 %

When: 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).

Additive

Ratio 100 : 750.0

ComponentWeigh out
CLT59part A58.8 g
LZC97Thinner441 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 CLT59

Answers are based on the CLT59 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.

    S10 use per the Technocolor 2025–2026 catalog thinner table (stains on fine-pored timber). Official S10 page: SG 0.790, fast drying, also for equipment cleaning. The dealer labels S10 'thinner for PE'.

  • 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 'suitable for diluting dyes' per its official page, and it is the thinner in the CTU dye steps of the official schedules. The dealer labels S12 'thinner for NC'.

  • 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.

    Dealer lists S90 as 'slow dye thinner'.

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

    Water dilution — less odour/VOC, raises the grain more and dries much slower (Milesi TDS: 8 h at 20 °C vs. ~30 s on LZC1000).

    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.

  • 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; in the Technocolor line its place is taken by S10/S12/S90 per the official page.

  • 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 %; rotating carousel — 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 sealer PTS20 100 % + C25 50 % + S50 20 %.

    The finishing schedule names the generic code 'CTU' (universal transparent dye). CLT59 has no t-color.ru page, but the CLT series (e.g. CLT4) sits in the same 'Universal dyes' section as CTU with the same thinners/binders (S10/S12/S90, CFS1/CFH1), so the recipe is carried over as a guide; that mapping is our interpretation, not an explicit CLT59 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 100 g/m².

    The finishing schedule names the generic code 'CTU' (universal transparent dye). CLT59 has no t-color.ru page, but the CLT series (e.g. CLT4) sits in the same 'Universal dyes' section as CTU with the same thinners/binders (S10/S12/S90, CFS1/CFH1), so the recipe is carried over as a guide; that mapping is our interpretation, not an explicit CLT59 instruction.

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

    Schedule 'Beech-veneered worktops (PU)' (the page's H1 wrongly reads 'Open-pore oak kitchen fronts (Acr.)'): stain 80–100 g/m², 20 min at 20–25 °C, sealer PTS60 100 % + C26 50 % + S50 20 %.

    This schedule is written for the water dye CTH, not CLT; 400 % CFH1 exceeds CLT59's official 0–200 % — stay within 0–200 % for CLT59.

Percentages are per 100 parts of component A.

Characteristics

Viscosity
24 ± 2 s, 24 ± 2 s
Drying · Conditions
20 °C room temperature (TDS; no RH stated)
Drying · Room temp (solvent)
30" (as printed; LZC1000 thinner)datasheet
Drying · Room temp (water)
8 hdatasheet
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

  • CLT59 · Merbau

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 (printed 1') when thinned with LZC1000datasheet
Recoat · Sealer (waterborne)
after 8 h when thinned with water (20 °C); TDS separately gives 20 min drying in IR tunnel + 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
1–1.5 barrecommended
Consumption
10–20 g/m² (fixed automatic airmix, TDS; basis unclear)datasheet

The Milesi TDS states 10–20 g/m² for fixed automatic airmix at 500–800 % dilution. If that is concentrate it equals ~60–180 g/m² of ready mix, overlapping Technocolor/dealer 80–100 g/m²; if ready mix, it is a very light automatic-line coat. Not resolvable from the sheet.

Airless

Nozzle
0.18–0.23 mm (07–09 thou)recommended
Pressure · fluid
30–60 barrecommended
Consumption
10–20 g/m² (fixed automatic airless, TDS; basis unclear)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; dilution 700–1500 %)datasheet

Milesi TDS covers automatic rotating (carousel) spray guns at 700–1500 % dilution and 5–20 g/m². Electrostatic application is not mentioned in the TDS.

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–P280–P320 (flats) / K120 (profiles) per the PU schedulesrecommended
Temperature and humidity
TDS drying data at 20 °C (room) and 60 °C (IR + warm air); no RH stated. Store 18–25 °C.datasheet
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 date (series TDS; CLT59 not named)datasheet
Storage temperature
18–25 °C, tightly closed container, protected from moisture and foreign materialdatasheet
Packaging
sold per litre (pack size field shown as «-»)dealer

Safety: Composition and hazard class are not published (no CLT59 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
  • solids_pct (blank in Milesi TDS, not on official/dealer pages)
  • lightfastness rating (no sourced figure)
  • hardness/elasticity/chemical resistance — not applicable to a binder-free dye on its own
  • LZC97 function and Technocolor product page (no official or dealer page)
  • CFS1/CFH1 product pages and their own data (no official/dealer page found)
  • consumption discrepancy: Technocolor/dealer 80–100 g/m² (ready mix) vs Milesi TDS 5–20 g/m² (basis not stated)
  • SDS / hazard classification for CLT59
  • no Technocolor-issued TDS for CLT59; data sheet used is Milesi's (IVM) CLT series TDS, rev. I, Oct 2006
  • CLT not covered in Technocolor 2025–2026 catalog (only CTU/CPS/CTH dyes); the catalog does carry CTU29 Мербау with the same thinners 500–1000 % and 80–100 g/m²
  • no official t-color.ru page for CLT59; LZC97 and water-as-thinner on the official side come from sibling CLT4
  • CLT59 absent from the 2006 Milesi TDS colour list — density/SG unknown; series viscosity/drying assumed to apply
  • no published colour card / reference swatch for the Merbau tone; web search for a CLT59-specific Milesi TDS not possible this run (search budget exhausted)
  • TDS solvent drying printed 30" (= seconds in Milesi notation, consistent with 1' overcoat) — very fast, applies to LZC1000 only; Technocolor S12 schedules use 5 min
  • milesi_clt5_sds.pdf in src/pdf is an HTML error page, not an SDS — no series SDS available
  • whether CLT59 and official CTU29 (also Мербау) are the same tint is unknown