AC40
AC40 Hardener for acrylic coatings
Aliphatic isocyanate hardener (component B) for Technocolor two-pack acrylic (acrylic-PU) primers, lacquers, enamels and converters. Non-yellowing, gives a flexible film. On the catalog chart it is the most yellowing-resistant hardener in the range and sits at the slow/elastic end of the scale (next to PC72). Never applied on its own.
- Component B for acrylic primers and matt acrylic finishes
- Acrylic lacquers ATL20, ATL50, ATL90, ATL20118
- Acrylic primers ATS20, APS20
- Enamels APL20, APL RAL; converters ATL1, APL1, ATL2
- Exterior system ATS60003/ATL60004/ATL60180/APL60181 (40 %)
Ask about AC40
Answers are based on the AC40 data and the products it mixes with.
Mixing matrix
- ATS20Product% by weight: 20 % of component Aofficial% by volume: 20 % of component Aofficial
Clear acrylic primer. Fixed ratio: 20 % AC40.
The catalog also allows AC41 (20 %). Owner datasheet: fixed 20 %; as a washcoat keep AC40 at 20 % and thin 60–90 %.
- ATL20 UMProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
General-purpose acrylic lacquer — 10–20 % AC40 (the ATL20 M page also allows AC41).
- ATL20 MProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
General-purpose acrylic lacquer — 10–20 % AC40 (the ATL20 M page also allows AC41).
- ATL20 SGProduct% by weight: 10–20 % of component Acatalog% by volume: 20 % of component Adealer
ATL20 SG (40 gloss): no official page; catalog 10–20 % AC40; the dealer table gives 20 % by weight and volume (its text says 10–20 %).
- ATL50 DMProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Thixotropic acrylic lacquer — 10–20 % AC40.
- ATL50 SMProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Thixotropic acrylic lacquer — 10–20 % AC40.
- ATL50 SGProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Thixotropic acrylic lacquer — 10–20 % AC40.
- ATL50 MProduct% by weight: 10–20 % of component Acatalog% by volume: 20 % of component Adealer
ATL50 M (20 gloss): catalog 10–20 % AC40; the dealer gives 20 % by weight and by volume.
- ATL50 GProduct% by weight: 10–20 (typ. 15) % of component Aworkshop
ATL50 G (60 gloss): 10–20 %, default 15 % (owner datasheet 01.06.2026; catalog also 10–20 %).
- ATL20118Product% by weight: 25 % of component Aofficial% by volume: 25 % of component Aofficial
"Natural-look" lacquer (5 gloss, 16 % solids) — fixed 25 % AC40.
- ATL90 MProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page).
- ATL90 SGProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page).
- ATL90 UMProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page).
- ATL90 SMProduct% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page).
- ATL90 GProduct% by weight: 10–20 % of component Acatalog
ATL90 G (60 gloss) — no official or dealer page; catalog 10–20 % AC40/AC41.
- ATL90 DMProduct% by weight: 20 % of component Adealer% by volume: 20 % of component Adealer
ATL90 DM (ATL90005 DM, 5 gloss, "parquet"): dealer 20 % AC40/AC41 by weight and volume, S80/S70 20–30 % (25–35 % vol); catalog 10–20 %.
- ATL90080Product% by weight: 20 % of component Adealer% by volume: 20 % of component Adealer
ATL90080 (80 gloss, lacquer-primer) — dealer only, not a catalog gloss variant: 20 % AC40/AC41 by weight and volume, S80/S70 20–30 % (25–35 % vol).
- ATL1 UMProduct% by weight: 20 % of component Aofficial% by volume: 20 % of component Aofficial
Clear converter ATL1 UM — 20 % on the official page; the catalog gives 10–20 % AC40/AC41.
- ATL1 MProduct% by weight: 10–20 % of component Acatalog
ATL1 M — catalog 10–20 % AC40/AC41.
- APL1 MProduct% by weight: 10–20 % of component Aofficial% by volume: 15–25 % of component Aofficial
White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener).
- APL1 UMProduct% by weight: 10–20 % of component Aofficial% by volume: 15–25 % of component Aofficial
White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener).
- APL20 MProduct% by weight: 10–20 % of component Aofficial% by volume: 15–25 % of component Aofficial
White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener).
- APL20 SMProduct% by weight: 10–20 % of component Aofficial% by volume: 15–25 % of component Aofficial
White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener).
- ATL2Product% by weight: 20 % of component Acatalog
Converter for pearl/metallic enamels — 20 % AC40.
- APL RAL 1013 M / APL RAL 1015 M / APL RAL 9003 M / APL RAL 9005 M / APL RAL 9016 MProduct% by weight: 10–20 % of component Acatalog
Stock tinted APL RAL enamels — 10–20 % AC40.
- APS20Product% by weight: 20 % of component Acatalog
White open-pore / decapé primer — 20 % AC40 or AC41.
- % by weight: 40 % of component Acatalog% by volume: 40 % of component Adealer
Exterior acrylic system (playgrounds, benches): 40 % AC40 — double the furniture-line dose.
ATS60003 is used only under ATL60004. Dealer lists 40 % by weight and by volume for ATL60004 SM, pot life 4 h.
- ATS20Product% by weight: 20 % of component Aschedule
Open-pore oak kitchen fronts (acrylic), step 6 — priming; with S50 30 %. Dry 1.5 h at 30–35 °C.
- ATL20Product% by weight: 20 % of component Aschedule
Open-pore oak kitchen fronts (acrylic), step 13 — topcoat; with S80 30 % + CTS 0,5 %. Dry 1.5 h at 30–35 °C.
- APS20Product% by weight: 20 % of component Aschedule
Decapé oak kitchen fronts (acrylic), step 3 — priming; with S50 40 %. Dry 1.5 h at 30–35 °C.
- APL20Product% by weight: 20 % of component Aschedule
Decapé oak kitchen fronts (acrylic), step 7 — RAL/NCS enamel; with S50 30 %. Dry 1.5 h at 30–35 °C.
- ATL20Product% by weight: 20 % of component Aschedule
Decapé oak kitchen fronts (acrylic), step 12 — topcoat; with S50 40 %. Dry 1.5 h at 30–35 °C.
- AC41Hardener
Approved substitute for AC40 on ATL90 (incl. ATL90080), ATL1, ATS20, APS20, ATL20 M (catalog / official / dealer pages). Not listed for APL1, APL20, APL RAL, ATL2, ATL50, ATL20 UM/SG, ATL20118 or the 600xx exterior line — those name AC40 only.
Per the catalog chart AC41 is also aliphatic, ≈36 % solids, slightly faster and harder, slightly less non-yellowing than AC40.
- % by weight: 20–40 % of component Aofficial% by volume: 20–50 % of component Aofficial
S50 is the default; S80 for heat above ~25 °C, large flat panels, dead-flat and gloss lacquers. Neither changes cure time.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Product | ATS20 | 20 % of component Aofficial | 20 % of component Aofficial | Clear acrylic primer. Fixed ratio: 20 % AC40.The catalog also allows AC41 (20 %). Owner datasheet: fixed 20 %; as a washcoat keep AC40 at 20 % and thin 60–90 %. |
| Product | ATL20 UM | 10–20 % of component Aofficial | 10–20 % of component Aofficial | General-purpose acrylic lacquer — 10–20 % AC40 (the ATL20 M page also allows AC41). |
| Product | ATL20 M | 10–20 % of component Aofficial | 10–20 % of component Aofficial | General-purpose acrylic lacquer — 10–20 % AC40 (the ATL20 M page also allows AC41). |
| Product | ATL20 SG | 10–20 % of component Acatalog | 20 % of component Adealer | ATL20 SG (40 gloss): no official page; catalog 10–20 % AC40; the dealer table gives 20 % by weight and volume (its text says 10–20 %). |
| Product | ATL50 DM | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Thixotropic acrylic lacquer — 10–20 % AC40. |
| Product | ATL50 SM | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Thixotropic acrylic lacquer — 10–20 % AC40. |
| Product | ATL50 SG | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Thixotropic acrylic lacquer — 10–20 % AC40. |
| Product | ATL50 M | 10–20 % of component Acatalog | 20 % of component Adealer | ATL50 M (20 gloss): catalog 10–20 % AC40; the dealer gives 20 % by weight and by volume. |
| Product | ATL50 G | 10–20 (typ. 15) % of component Aworkshop | — | ATL50 G (60 gloss): 10–20 %, default 15 % (owner datasheet 01.06.2026; catalog also 10–20 %). |
| Product | ATL20118 | 25 % of component Aofficial | 25 % of component Aofficial | "Natural-look" lacquer (5 gloss, 16 % solids) — fixed 25 % AC40. |
| Product | ATL90 M | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page). |
| Product | ATL90 SG | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page). |
| Product | ATL90 UM | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page). |
| Product | ATL90 SM | 10–20 % of component Aofficial | 10–20 % of component Aofficial | Fast-drying acrylic lacquer — 10–20 % AC40 or AC41 (interchangeable per the official page). |
| Product | ATL90 G | 10–20 % of component Acatalog | — | ATL90 G (60 gloss) — no official or dealer page; catalog 10–20 % AC40/AC41. |
| Product | ATL90 DM | 20 % of component Adealer | 20 % of component Adealer | ATL90 DM (ATL90005 DM, 5 gloss, "parquet"): dealer 20 % AC40/AC41 by weight and volume, S80/S70 20–30 % (25–35 % vol); catalog 10–20 %. |
| Product | ATL90080 | 20 % of component Adealer | 20 % of component Adealer | ATL90080 (80 gloss, lacquer-primer) — dealer only, not a catalog gloss variant: 20 % AC40/AC41 by weight and volume, S80/S70 20–30 % (25–35 % vol). |
| Product | ATL1 UM | 20 % of component Aofficial | 20 % of component Aofficial | Clear converter ATL1 UM — 20 % on the official page; the catalog gives 10–20 % AC40/AC41. |
| Product | ATL1 M | 10–20 % of component Acatalog | — | ATL1 M — catalog 10–20 % AC40/AC41. |
| Product | APL1 M | 10–20 % of component Aofficial | 15–25 % of component Aofficial | White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener). |
| Product | APL1 UM | 10–20 % of component Aofficial | 15–25 % of component Aofficial | White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener). |
| Product | APL20 M | 10–20 % of component Aofficial | 15–25 % of component Aofficial | White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener). |
| Product | APL20 SM | 10–20 % of component Aofficial | 15–25 % of component Aofficial | White pigmented base: 10–20 % by weight = 15–25 % by volume (the base is noticeably denser than the hardener). |
| Product | ATL2 | 20 % of component Acatalog | — | Converter for pearl/metallic enamels — 20 % AC40. |
| Product | APL RAL 1013 M / APL RAL 1015 M / APL RAL 9003 M / APL RAL 9005 M / APL RAL 9016 M | 10–20 % of component Acatalog | — | Stock tinted APL RAL enamels — 10–20 % AC40. |
| Product | APS20 | 20 % of component Acatalog | — | White open-pore / decapé primer — 20 % AC40 or AC41. |
| Product | ATS60003 / ATL60004 / ATL60180 / APL60181 | 40 % of component Acatalog | 40 % of component Adealer | Exterior acrylic system (playgrounds, benches): 40 % AC40 — double the furniture-line dose.ATS60003 is used only under ATL60004. Dealer lists 40 % by weight and by volume for ATL60004 SM, pot life 4 h. |
| Product | ATS20 | 20 % of component Aschedule | — | Open-pore oak kitchen fronts (acrylic), step 6 — priming; with S50 30 %. Dry 1.5 h at 30–35 °C. |
| Product | ATL20 | 20 % of component Aschedule | — | Open-pore oak kitchen fronts (acrylic), step 13 — topcoat; with S80 30 % + CTS 0,5 %. Dry 1.5 h at 30–35 °C. |
| Product | APS20 | 20 % of component Aschedule | — | Decapé oak kitchen fronts (acrylic), step 3 — priming; with S50 40 %. Dry 1.5 h at 30–35 °C. |
| Product | APL20 | 20 % of component Aschedule | — | Decapé oak kitchen fronts (acrylic), step 7 — RAL/NCS enamel; with S50 30 %. Dry 1.5 h at 30–35 °C. |
| Product | ATL20 | 20 % of component Aschedule | — | Decapé oak kitchen fronts (acrylic), step 12 — topcoat; with S50 40 %. Dry 1.5 h at 30–35 °C. |
| Hardener | AC41 | — | — | Approved substitute for AC40 on ATL90 (incl. ATL90080), ATL1, ATS20, APS20, ATL20 M (catalog / official / dealer pages). Not listed for APL1, APL20, APL RAL, ATL2, ATL50, ATL20 UM/SG, ATL20118 or the 600xx exterior line — those name AC40 only.Per the catalog chart AC41 is also aliphatic, ≈36 % solids, slightly faster and harder, slightly less non-yellowing than AC40. |
| Thinner | S50 / S80 / S30 / S70 | 20–40 % of component Aofficial | 20–50 % of component Aofficial | S50 is the default; S80 for heat above ~25 °C, large flat panels, dead-flat and gloss lacquers. Neither changes cure time. |
Percentages are per 100 parts of component A.
Characteristics
- Solids
- 38 ± 1 %dealer
- Chemistry
- aliphatic polyisocyanatecatalog
- Lightfastness
- non-yellowing — highest on the Technocolor yellowing-resistance scale (PC72 → … → AC41 → AC40)catalog
- Elasticity
- good elasticity; far right ("slow / elastic") end of the catalog chart, level with PC72dealer
- Reactivity
- slowcatalog
- Pot life
- set by the basedealer
- Drying · Conditions
- 20 °C
- Thixotropy
- norecommended
Process and compatibility
- Mixing
- Stir the base well, add AC40 by weight on scales, mix, then add thinner. Let stand 5–10 min and strain through a 125–190 µm filter. For white/pigmented bases (APL1, APL20) measure by weight only — the volume figures differ (15–25 %).recommended
- Ratio effect
- Low end (10 %) — more flex and longer pot life; top end (20 %) — better chemical resistance for kitchens/bathrooms. Stay inside the range: under-dosing gives a soft, tacky film, over-dosing makes it brittle with poor intercoat adhesion.recommended
- Goes with
- ATS20, APS20, ATL20, ATL50, ATL90, ATL90080, ATL20118, APL20, APL RAL, ATL1, APL1, ATL2, ATS60003, ATL60004, ATL60180, APL60181
- Temperature and humidity
- air RH 40–75 % while finishing; wood moisture 8–14 %official
Storage
- Packaging
- 0.5 L,2.5 L,25 Ldealer
- Shelf life
- about 12 months in the sealed original canrecommended
- Storage temperature
- +5…+25 °C, dry place, tightly closed; reseal immediately after userecommended
Used in finishing systems
Mixed into
APL R1013 M / APL R1015 M / APL R9003 M / APL R9005 M / APL R9016 M / APL1 M / APL1 UM / APL20 M / APL20 SM / APL60181 M / APL60181 SM / APL80048 / APL80093 / APL80094 / APS20 / ATL1 M / ATL1 UM / ATL10 SM / ATL2 / ATL20 M / ATL20 SG / ATL20 SM / ATL20 UM / ATL20118 / ATL50 DM / ATL50 G / ATL50 M / ATL50 SG / ATL50 SM / ATL60004 G / ATL60004 SM / ATL60180 M / ATL60180 SM / ATL80018 / ATL90 DM / ATL90 G / ATL90 M / ATL90 SG / ATL90 SM / ATL90 UM / ATL93 / ATS20 / ATS60003 / CTS1 / CTS2 / CTS3 / CTS4 / CTS9
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).
- dealer page: properties, use, solids 38 ± 1 %, packaging 0.5/2.5/25 L, prices
- second dealer: solids 38 ± 1 %, type acrylic, use text
- schedule: C40 20 % with ATS20 and ATL20
- schedule: C40 20 % with APS20, APL20, ATL20
- glossary: isocyanate hardeners are water-sensitive; RH 40–75 %
- characteristics: aliphatic hardeners more lightfast than aromatic
- official ratio for APL1 M
- official ratio for APL1 UM
- official ratio for APL20 M
- official ratio for APL20 SM
- official ratio for ATL1 UM
- official ratio for ATL20 UM
Not covered by the sources
- No official t-color.ru product page
- No Technocolor TDS/SDS PDF found (web search budget exhausted; none among local PDFs)
- Viscosity of AC40
- Density / specific gravity (only implied: lighter than APL bases since 10–20 % wt = 15–25 % vol)
- NCO content and exact isocyanate type
- Official shelf life and storage temperature
- Flash point / hazard classification
- Solids conflict: dealer 38 ± 1 % vs ≈33 % read off the catalog chart