ATL1 UM
ATL1 UM clear acrylic tinting converter, matt (10 gloss)
Clear 2K acrylic (acrylic-isocyanate) tinting base: mixed with CS pigment pastes on a tinting machine to make tinted clear lacquers and, with white/opaque pastes, enamels. High physical and chemical resistance, non-yellowing, very transparent, shows off the grain on open-pore finishes.
- Base for tinted clear lacquers in the SPECTRUM tinting system
- Base for in-house acrylic enamels to RAL/NCS
- Open-pore and closed-pore finishing of interior furniture and cabinet doors
- Pale and white shades where non-yellowing matters
Mix calculator
Ask about ATL1 UM
Answers are based on the ATL1 UM data and the products it mixes with.
Mixing matrix
- AC40Hardener% by weight: 20 %official% by volume: 20 %official
Standard hardener.
Official ATL1 UM page fixes 20 % (weight and volume); catalog gives 10–20 % for the family. Stick to 20 % on UM.
- % by weight: 10–20 %catalog
The 2025–26 catalog lists AC41 as an alternative for the whole ATL1 family.
Catalog gives 10–20 % for ATL1 as a family, not split UM/M.
- AC40Hardener
Suggested (derived) default for tinted batches.
- % by weight: 30–40 (typ. 35) %official% by volume: 35–45 %official
S50 normal evaporation, default; S80 slow, above ~25 °C and on big flat panels.
S80 levels better but catches more dust and sags easier; neither changes cure time.
- % by weight: 30–40 %catalog
2025–26 catalog, same figure.
- CS 10 / CS 20 / CS 21 / CS 22 / CS 23 / CS 30 / CS 40 / CS 50 / CS 51 / CS 53 / CS 60 / CS 70 / CS 80 / CS 90 / CS 91Additive
Tinting: CS pastes (for solvent-based enamels) dosed per SPECTRUM recipe. Pearl/metallic CS 00xxx pastes do not go into ATL1 — they are for the separate converter ATL2 (max 10 %).
CH pastes are for waterborne enamels (2025–26 catalog p.16); do not use in ATL1.
- CS pastesAdditive% by weight: 10 % of converter weight, practical ceilingrecommended
Rule of thumb when tinting by hand.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | AC40 | 20 %official | 20 %official | Standard hardener.Official ATL1 UM page fixes 20 % (weight and volume); catalog gives 10–20 % for the family. Stick to 20 % on UM. |
| Hardener | AC40 / AC41 | 10–20 %catalog | — | The 2025–26 catalog lists AC41 as an alternative for the whole ATL1 family.Catalog gives 10–20 % for ATL1 as a family, not split UM/M. |
| Hardener | AC40 | — | — | Suggested (derived) default for tinted batches. |
| Thinner | S50 / S80 | 30–40 (typ. 35) %official | 35–45 %official | S50 normal evaporation, default; S80 slow, above ~25 °C and on big flat panels.S80 levels better but catches more dust and sags easier; neither changes cure time. |
| Thinner | S50 / S80 | 30–40 %catalog | — | 2025–26 catalog, same figure. |
| Additive | CS 10 / CS 20 / CS 21 / CS 22 / CS 23 / CS 30 / CS 40 / CS 50 / CS 51 / CS 53 / CS 60 / CS 70 / CS 80 / CS 90 / CS 91 | — | — | Tinting: CS pastes (for solvent-based enamels) dosed per SPECTRUM recipe. Pearl/metallic CS 00xxx pastes do not go into ATL1 — they are for the separate converter ATL2 (max 10 %).CH pastes are for waterborne enamels (2025–26 catalog p.16); do not use in ATL1. |
| Additive | CS pastes | 10 % of converter weight, practical ceilingrecommended | — | Rule of thumb when tinting by hand. |
Percentages are per 100 parts of component A.
Characteristics
- Gloss
- 10 GUcatalog
- Lightfastness
- resists yellowing over timeofficial
- Chemical resistance
- high physical and chemical resistanceofficial
- Solids
- 23–30 % by weight, part Arecommended
- Viscosity
- 35–55 srecommended
- Pot life
- ≈6 h at 20 °Crecommended
- Drying · Dust-free
- ≈20recommended
- Drying · Full cure
- ≈8recommended
- Drying · Sand or stack
- denib after ≥4 h; hard sanding/stacking next dayrecommended
- Drying · Conditions
- 20 °C, ~60 % RH
- Thixotropy
- norecommended
Application
Conventional spray
- Consumption
- 150 g/m² per coatofficial
Technocolor only states 'spray, 150 g/m²'.
HVLP
- Nozzle
- 1.3–1.5 (typ. 1.4)recommended
- Pressure · air · Inlet pressure
- 2–2.2
- Pressure · air · at the cap, max
- 0.7
- Pressure · air · Why ru
- Совпадает с измеренной HVLP-настройкой владельца для ATL50 G (на входе 2,0–2,2 бар при нажатом курке, ≤0,7 бар на головке).
- Pressure · fluid
- gravity cup / 0.5–1.0 bar pressure potrecommended
- Spray viscosity
- 16–22 s DIN4recommended
- Wet film
- 130–170recommended
- Coats
- 2 (1 on a well-filled primer for tinted clear); 2–3 for enamel coveragerecommended
- Flash-off
- 15–30recommended
- Recoat
- after 20–30 min wet-on-wet, or after ≥4 h with denibrecommended
- Sanding between coats
- P400–P600 between coats (P800–P1200 denib only on near-dry); never sand the final matt coatrecommended
- Other · Gun distance
- 15–20
- Other · Overlap
- 50–75
- Other · Fan
- fully open
- Other · Needle
- ~2 turns
- Other · Air demand
- 10–13
- Other · Why ru
- HVLP-рецепт владельца для ATL50 G, тот же класс вязкости.
Stir the tinted base thoroughly before adding hardener; strain at 125–190 µm.
Airmix (air-assisted airless)
- Nozzle
- 0.23–0.28 mm (09–11 thou), fan 20–40°recommended
- Pressure · fluid
- 40–70recommended
- Pressure · air
- 0.8–1.5recommended
- Spray viscosity
- 20–28 s DIN4recommended
Electrostatic
Methods page: any spray system can run electrostatic (chairs, legs). Fine for ATL1 enamels; nozzle choice as airmix/HVLP.
Process and compatibility
- Substrate preparation
- Sanded, dust-free wood/MDF over an acrylic or PU primer; for open-pore work, over a thin coat of clear acrylic primer (e.g. ATS20).recommended
- Sanding
- Primer P280–P320 (acrylic) / P320–P400 (PU) before the ATL1 coat; denib only between ATL1 coats.recommended
- Temperature and humidity
- 18–25 °C, RH 50–70 %; above 25 °C switch to S80recommended
- Don'ts
- Don't use CH (waterborne) pastes — CS only
- Don't run past pot life or top up old mix with fresh
- Don't sand or polish the final matt coat
- Not for exterior use (interior material; for exterior use converter ATL60180)
Storage
Safety: Flammable 2K solvent-borne material; AC40 hardener contains isocyanates. Spray booth with extraction, A2P2 carbon respirator and gloves.
Mixed into
AC40 / CS 10 / CS 20 / CS 21 / CS 22 / CS 23 / CS 30 / CS 40 / CS 50 / CS 51 / CS 53 / CS 60 / CS 70 / CS 80 / CS 90 / CS 91
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 product page: properties, 150 g/m², AC40 and S50/S80 % weight/volume
- sister ATL20 UM dealer data used only as reference for derived values
- 2019 catalog: 'ATL1 прозрачный матовый' listed in tinting system (not re-verified in this pass)
- application methods
Not covered by the sources
- No ATL1 product on t-colormarket.ru (dealer search by code returns nothing) — solids, viscosity, pot life, drying times unpublished; values here are derived from sister ATL20 UM/ATL50 G
- No TDS PDF found online
- Maximum pigment paste loading per 100 parts converter not published (SPECTRUM recipe only)
- Density, hardness, elasticity not published
- Shelf life, storage temperature and pack sizes not published
- Not used in any official finishing schedule (information/technology)
- AC41 conditions of use (catalog lists it, official page does not)
- Gloss measuring geometry (60° vs 85°) not stated