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CLT55

CLT55 Kromolux dye concentrate, Mirto (myrtle)

Kromolux (made by MILESI) concentrated transparent dye stain, shade 'Mirto' (myrtle). Very clear and very even; the high concentration lets you go dark and still see the grain. Cut with deionised water or solvent, with or without a binder. Every dye in the range mixes with the others in any ratio. Per the series TDS it can be topcoated with polyester, polyurethane and nitrocellulose lacquers.

  • Colouring all kinds of wood, veneer or solid
  • 'Mirto' toning that keeps the grain visible
  • A base for mixing your own shades with other Kromolux dyes

Mix calculator

g
Thinner750.0 %

When: Listed as an approved thinner on the official pages of the other Kromolux dyes (CLT1–CLT10).

Additive

Ratio 100 : 750.0

ComponentWeigh out
CLT55part A58.8 g
LZC97Thinner441 g
Total500 g

Covers roughly 5.56 m² at 90 g/m².

Ask about CLT55

Answers are based on the CLT55 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 solvency (catalog): stain on fine-pored timber.

    500–1000 % means 5 to 10 parts thinner to 1 part concentrate. More thinner = lighter, more transparent shade. Dealer labels it «Разбавитель для ПЭ».

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

    Medium evaporation (catalog): stain on medium-pored timber.

    500–1000 % means 5 to 10 parts thinner to 1 part concentrate. More thinner = lighter, more transparent shade. Dealer labels it «Разбавитель для НЦ».

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

    Slow evaporation (catalog): stain on open-pored timber (oak, ash, walnut).

    500–1000 % means 5 to 10 parts thinner to 1 part concentrate. More thinner = lighter, more transparent shade. Dealer labels it «Разбавитель для красителей медленный». Also handy in hot weather and on big panels for fewer stripes (shop practice, not the catalog).

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

    Listed as an approved thinner on the official pages of the other Kromolux dyes (CLT1–CLT10).

    The CLT55 dealer page doesn't list LZC97. The data comes from sibling pages in the same series (same chemistry). LZC97's own properties are unpublished.

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

    Water dilution, when you want a solvent-free stain. Deionised water only.

    Dealer note: use only deionised water, or the dye can flocculate and lose colour stability in the can. Water raises the grain, so wet, dry and sand the wood before staining (official wood-prep page).

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

    Spray binder for the solvent-borne system: use it when the concentrate is cut with S10/S12/S90.

    0 % = straight dye, no binder. The binder locks the dye in, cuts bleed into the next sealer coat and evens out absorption. The solvent/water pairing comes from the dealer table (CFH1 / CFS1 = 'solvent-borne / water-borne spray binder').

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

    Spray binder for the water-borne system: use it when the concentrate is cut with deionised water.

    Solvent/water pairing per the dealer table. The official CLT10 page lists CFS1 only.

  • LZC97 / LZC1000Thinner

    Milesi's suggested solvent dilution for the range.

    LZC1000 is a Milesi thinner that Technocolor doesn't sell; in Technocolor practice S10/S12/S90 take its place (dealer table). Series data; CLT55 isn't named in the TDS.

  • LZC97 / WATERThinner

    Milesi's suggested water dilution for the range (LZC97 acts as co-solvent).

    Deionised water only (dealer). Goes past the dealer's 500–1000 % range, so the shade comes out lighter.

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

    Series TDS: manual spray and fixed airmix/airless/swinging-arm automatics 500–800 %; rotating (carousel) automatics 700–1500 %.

    Series-level Milesi TDS for the whole CLT Kromolux range (rev. I, Oct 2006). CLT55 is NOT named in it (it lists CLT1–12, 18, 19), so treat it as same-chemistry series data, not a CLT55-specific figure.

Percentages are per 100 parts of component A.

Characteristics

Viscosity
24 ± 2 s (cup not stated by the dealer; the Milesi series TDS gives the identical 24 ± 2 s on the ISO 3 mm cup, so this is almost certainly ISO 3, NOT DIN4)dealer
Drying · Touch-dry
10–30recommended
Drying · Overcoat (min)
30–120recommended
Drying · Conditions
20 °C, 50–65 % RH (assumed)
Drying · IR drying 60 °C
10 min (solvent); 20 min (water)datasheet
Lightfastness
Not rated. The catalog stains intro credits pigment stains with high hiding power and lightfastness, and transparent dyes with saturated, bright colour; it gives no lightfastness claim for transparent dyes. Expect a dye to fade faster than a pigment stain (general dye chemistry, not a catalog statement).catalog
Colour strength
Higher concentration than ordinary stains, so dark shades stay transparentdealer
Density
0.895–1.015 g/cm³ (specific gravity at 20 °C)datasheet
Overcoatable with
PE,PU,NCdatasheet

Colours

  • CLT55 · Mirto (Italian for myrtle)

Application

HVLP

Nozzle
1–1.3 (typ. 1.2) mmrecommended
Pressure · air
1.5–2 barrecommended
Spray viscosity
10–12 s DIN4recommended
Consumption
80–100 g/m²dealer
Wet film
95–125 µmrecommended
Coats
1–2recommended
Flash-off
5–15recommended
Recoat
30–120 minrecommended
Sanding between coats
Never sand the stain itself. You cut through the colour on edges. Denib only after the first sealer coat.recommended
Consumption, TDS (g/m²)
5–20 g/m²datasheet

15–20 cm from the work, 50 % overlap, gun square to the surface, steady speed. Back off the fluid on vertical panels. Do edges and ends first, then the face.

Conventional spray

Nozzle
1.2–1.4 mmrecommended
Pressure · air
2.5–3.5 barrecommended
Consumption
80–100 g/m²dealer

More overspray than HVLP, but often more even on large surfaces.

Airmix (air-assisted airless)

Nozzle
0.18–0.23 mmrecommended
Pressure · fluid
8–20 barrecommended
Pressure · air
1–2 barofficial
Consumption
80–100 g/m²dealer
Consumption, TDS (g/m²)
10–20 g/m²datasheet

For production runs. Skip airless for stain: too much material, and it blotches.

Process and compatibility

Substrate preparation
Sand solid wood or veneer to P150–P180 (open-pored up to P180, fine-pored P180–P220) and de-dust. If you dilute with water, pre-wet, dry and knock back the raised grain first.recommended
Goes over
bare wood
Goes under
ATS20
Sanding
Don't sand the stain. The first denib goes on the first sealer coat.recommended
Temperature and humidity
15–25 °C, RH 50–70 %; above ~25 °C use slow S90recommended
Don'ts
  • Don't cut it with tap water. Deionised only (dealer).
  • Don't lay it on in one heavy coat. You get blotches and runs.
  • Don't seal before the solvent or water has fully gone.

Storage

Packaging
1 Ldealer
Shelf life
8 months from deliverydatasheet
Storage temperature
18–25 °C, tightly closed, protected from moisturedatasheet

Safety: (Generic advice, not from an SDS.) Once cut with S10/S12/S90 it is highly flammable. Spray in an extracted booth, wear an A2-filter respirator and nitrile gloves, and keep it away from ignition sources. I couldn't find an SDS for CLT55.

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 CLT55; all CLT55-specific data comes from the dealer page (description, 80–100 g/m², S10/S12/S90/water 500–1000 %, CFH1/CFS1 0–200 %, viscosity 24±2, 1 L)
  • No CLT55-specific TDS or SDS; the Milesi CLT series TDS (2006) doesn't name CLT55, so density/drying/shelf-life are series values
  • Solids content and flash point not published
  • Exact hue of 'Mirto' (myrtle) not described by the dealer; no swatch, no recipe from base CLT colours — could be a myrtle-wood tone or a green
  • Drying/overcoat times with Technocolor S10/S12/S90 not published (TDS gives Milesi LZC1000 only); figures in drying.touch_min/overcoat_min are derived
  • No lightfastness rating specific to CLT55
  • CLT series not in the 2025-2026 catalog; no official finishing schedule uses CLT55
  • Properties of LZC97, CFH1 and CFS1 not published; LZC1000/LZC1024/LTC5 (TDS thinners) are Milesi codes not sold by Technocolor