LUA463
LUA463 2K acrylic lacquer, 25 gloss
Two-pack clear acrylic (acrylic-polyurethane) topcoat by Milesi at 25 gloss — a semi-matt finish. Flows out well, resists scratching, chemicals and solvents. Catalysed with LNB99, a non-yellowing acrylic hardener (10–20 % by weight), thinned with the slow LZC8643 at 20–30 %. Spray at 100–120 g/m² or curtain-coat at 120–140 g/m². For open- and closed-pore furniture finishes, including chemically bleached timber.
- Semi-matt clear topcoat for furniture — doors, carcasses (official: spray, curtain coating)
- Kitchen doors and bathroom furniture exposed to humidity and temperature swings (dealer, sibling LUA468 description)
- Pale and chemically bleached timbers — non-yellowing LNB99 (dealer: LNB99 card + series note on LUA468)
- Open-pore and closed-pore finishes (dealer, sibling LUA468 application text)
Mix calculator
Ask about LUA463
Answers are based on the LUA463 data and the products it mixes with.
Mixing matrix
- LNB99Hardener% by weight: 10–20 %official% by volume: 10–20 %official
10 % standard; 20 % where higher chemical resistance is needed (kitchens, bathrooms, tops)
At 20 % drying is much faster and the sheen rises by about 5 gloss (≈30 instead of 25) — dealer note for the 460–468 series. LNB99 is fine over chemically bleached wood. Weigh, don't eyeball.
- LZC8643Thinner% by weight: 20–30 (typ. 25) %official% by volume: 20–30 (typ. 25) %official
Always for spraying; for curtain coating — to the machine's viscosity
LZC8643 is a slow PU/acrylic thinner: good flow-out, less dry spray on low-sheen lacquers.
- LZC70Thinner
If LZC8643 is not available
Not an official LUA463 option — test on a sample panel first.
- LTC22Additive% by weight: 4 %dealer
To protect the timber from UV colour change (pale woods, display pieces, near windows)
LTC22 is a UV-absorber additive. No official t-color.ru page for it.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | LNB99 | 10–20 %official | 10–20 %official | 10 % standard; 20 % where higher chemical resistance is needed (kitchens, bathrooms, tops)At 20 % drying is much faster and the sheen rises by about 5 gloss (≈30 instead of 25) — dealer note for the 460–468 series. LNB99 is fine over chemically bleached wood. Weigh, don't eyeball. |
| Thinner | LZC8643 | 20–30 (typ. 25) %official | 20–30 (typ. 25) %official | Always for spraying; for curtain coating — to the machine's viscosityLZC8643 is a slow PU/acrylic thinner: good flow-out, less dry spray on low-sheen lacquers. |
| Thinner | LZC70 | — | — | If LZC8643 is not availableNot an official LUA463 option — test on a sample panel first. |
| Additive | LTC22 | 4 %dealer | — | To protect the timber from UV colour change (pale woods, display pieces, near windows)LTC22 is a UV-absorber additive. No official t-color.ru page for it. |
Percentages are per 100 parts of component A.
Characteristics
- Gloss
- 25 GU @60°official
- Drying · Touch-dry
- 40 minrecommended
- Drying · Full cure
- 12 hrecommended
- Drying · Faster with 20 % LNB99
- При 20 % LNB99 скорость сушки существенно сокращаетсяdealer
- Drying · Conditions
- 20 °C
- Hardness
- high for an acrylic topcoat; better with LNB99 at 20 %recommended
- Lightfastness
- Нежелтеющая система: LNB99 — «стойкий к пожелтению отвердитель для акриловых материалов»; пригоден для химически отбеленных основ. Для защиты древесины от потемнения под УФ — добавить 4 % LTC22.dealer
- Chemical resistance
- устойчивость к химическим реагентам и растворителямofficial
- Elasticity
- high (per sibling)recommended
- Thixotropy
- norecommended
Colours
- LUA463 · clear, colourless
Application
HVLP
- Consumption
- 100–120 g/m² per coatofficial
15–20 cm gun distance, 50–75 % overlap, fan wide open. Low-sheen lacquers are film-sensitive: lay it on evenly, no puddles, no dry spray, or you get sheen patches. Final coat in one full wet pass. Stir well before catalysing — the matting agent settles.
Conventional spray
- Consumption
- 100–120 g/m²official
Official method 'spraying'; transfer efficiency up to 40 % (methods page).
Airmix (air-assisted airless)
- Pressure · air
- 1–2official
- Consumption
- 100–120 g/m²official
Methods page: airmix suits topcoats better than airless.
Curtain coater
- Consumption
- 120–140 g/m² per passofficial
Official: curtain coating 120–140 g/m². For flat parts — doors, sides, shelves (methods page).
Process and compatibility
- Substrate preparation
- Wood MC 8–12 %; primer sanded P320–P400 and dust-free.recommended
- Don'ts
- Don't use without LNB99 — the lacquer won't cure on its own
- Don't exceed 20 % LNB99 — sheen and brittleness go up
- Don't sand or polish the final semi-matt coat
- Don't apply over green LJA99 — only fully cured
- Don't use the mix past its 3–4 h pot life
- Don't spray more than 120 g/m² per pass — haze and runs
Storage
- Shelf life
- ≈ 12 months in sealed original packagingrecommended
- Storage temperature
- 5–30 °C, dry, ventilated, out of sunrecommended
Safety: Solvent-borne 2K lacquer with an isocyanate hardener (LNB99). Flammable. Spray in a booth with extraction, A2/P2 respirator or air-fed mask, nitrile gloves, goggles; no ignition sources. See the manufacturer's SDS.
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 page: properties, spray 100–120 g/m², curtain 120–140 g/m², LNB99 10–20 % w/v, LZC8643 20–30 % w/v
- dealer card for sibling LUA468 (same 460–468 series): solids 22 ± 1 %, viscosity 35 ± 2 s VZ-4, pot life 3–4 h, touch 40 min, full 12 h, LNB99 20 % note (+5 gloss, faster cure, chem resistance), LTC22 4 %, substrates (PE primers, LBA1+LNB17 50–70 %, cured LJA99), manufacturer MILESI
- dealer card LNB99: non-yellowing acrylic hardener, solids 32 ± 1 %, MILESI
- official LZC8643 slow PU thinner for PU and acrylic materials
- official LZC70 slow PU thinner (alternative listed for LUA460/462)
- official LUA460: same ratios, thinner LZC8643/LZC70
- dealer search for LUA463 — no product
- official application methods page (spray, airless, airmix 1–2 bar air, curtain 70–300 g/m²)
Not covered by the sources
- No t-colormarket.ru dealer card for LUA463 (search empty, /laki_1/lua463/ 404) — solids, viscosity, pot life and drying are derived from sibling LUA468
- No Technocolor or Milesi TDS found for LUA463 / the LUA460–468 series (re-checked 2026-10-05: t-colormarket search empty, /laki_1/lua463/ 404, lakokraska31/woodonline searches and web search return nothing)
- Not in any Technocolor PDF catalog transcript and not used in any official finishing schedule
- Gloss tolerance, density, hardness, elasticity, lightfastness rating not published
- Dust-free time, sandable/recoat window, max film per coat not published
- Shelf life, storage temperature and pack sizes for LUA463 not published
- LTC22 UV additive and LNB17/LBA1 have no official t-color.ru product page in the local sources
- LZC70 is official for LUA460/LUA462 but not listed on the LUA463 page
- Official hardener figure differs within the series: LUA463 10–20 % LNB99 vs LUA468 10 % (20 % only as a dealer note) — sibling-derived values assume the same cure chemistry