LNB99
LNB99 Hardener for acrylic lacquers
Non-yellowing hardener (component B) for Milesi two-pack acrylics: LJA99 clear sealer, the LUA460–468 lacquer series, and the exterior LGA180 converter and LKR181 enamel. Never applied on its own.
- LJA99 clear acrylic sealer — 10–20 % (TDS: 20 %)
- LUA460, LUA461, LUA462, LUA463, LUA464, LUA465 acrylic lacquers — 10–20 %
- LUA468 acrylic lacquer (3 gloss) — 10 % (20 % for chemical resistance, per dealer)
- LGA180 exterior acrylic converter — 40 %
- LKR181 white exterior acrylic enamel — 40 %
Ask about LNB99
Answers are based on the LNB99 data and the products it mixes with.
Mixing matrix
- LJA99Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LJA99 clear acrylic sealer: 10–20 % LNB99. The Milesi TDS recipe is 20 % w/w (19.5 % v/v) + 30 % LZC1026.
Pot life of the TDS mix is 3 h; ready-to-spray viscosity 18 ± 2 s Ford 4. Thinner LZC1026/LZC8643 20–30 %.
- LUA460Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA460 acrylic lacquer (65 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643/LZC70 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA461Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA461 acrylic lacquer (50 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA462Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA462 acrylic lacquer (35 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643/LZC70 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA463Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA463 acrylic lacquer (25 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA464Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA464 acrylic lacquer (15 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA465Product% by weight: 10–20 % of component Aofficial% by volume: 10–20 % of component Aofficial
LUA465 acrylic lacquer (10 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.
Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series).
- LUA468Product% by weight: 10 % of component Aofficial% by volume: 10 % of component Aofficial
LUA468 acrylic lacquer (3 gloss): officially 10 % LNB99 — standard catalysis.
Dealer confirms 10 % by weight and volume; thinner LZC8643 20–30 %. Mix (20 °C, dealer): pot life 3–4 h, touch dry 40 min, full dry 12 h.
- % by weight: 20 % of component Adealer% by volume: 20 % of component Adealer
460–468 series when you need extra resistance to chemical agents (kitchens, bathrooms); OK over chemically bleached wood.
Per the dealer, drying time is 'substantially reduced' (read as faster drying) and the sheen rises by about 5 gloss units. Suitable over chemically bleached wood. For LUA468 this is above the official 10 % — a dealer-only option.
- LKR181Product% by weight: 40 % of component Aofficial% by volume: 40 % of component Aofficial
LKR181 white exterior acrylic enamel: fixed 40 % LNB99.
Thinner LZC1051/LZC8643 10–20 %. Dealer card withdrawn — pot life and drying not published.
- LGA180Product% by weight: 40 % of component Aofficial% by volume: 40 % of component Aofficial
LGA180 clear exterior acrylic converter (25 gloss): fixed 40 % LNB99.
Thinner LZC8643/LZC1051 10–30 % (dealer lists LZC8643 only). Dealer confirms 40 % by weight and by volume. Mix (20 °C, dealer): touch dry 2 h, sand 24 h, full dry 24 h; pot life not published. LGA180 is a converter, tinted with KMT pastes (max 30 %).
- LTC22Additive% by weight: 4 % of component Adealer
To protect the wood from UV colour change.
UV-absorber goes into the lacquer, not the hardener.
- LTC206Additive% by weight: 1–2 % of component Adatasheet
Extra light protection for LJA99.
From the LJA99 TDS.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Product | LJA99 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LJA99 clear acrylic sealer: 10–20 % LNB99. The Milesi TDS recipe is 20 % w/w (19.5 % v/v) + 30 % LZC1026.Pot life of the TDS mix is 3 h; ready-to-spray viscosity 18 ± 2 s Ford 4. Thinner LZC1026/LZC8643 20–30 %. |
| Product | LUA460 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA460 acrylic lacquer (65 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643/LZC70 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA461 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA461 acrylic lacquer (50 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA462 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA462 acrylic lacquer (35 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643/LZC70 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA463 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA463 acrylic lacquer (25 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA464 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA464 acrylic lacquer (15 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA465 | 10–20 % of component Aofficial | 10–20 % of component Aofficial | LUA465 acrylic lacquer (10 gloss): 10–20 % LNB99. 10 % is standard; 20 % for extra chemical resistance.Thinner LZC8643 20–30 %. At 20 % it dries faster and comes out glossier (dealer note for the 460–468 series). |
| Product | LUA468 | 10 % of component Aofficial | 10 % of component Aofficial | LUA468 acrylic lacquer (3 gloss): officially 10 % LNB99 — standard catalysis.Dealer confirms 10 % by weight and volume; thinner LZC8643 20–30 %. Mix (20 °C, dealer): pot life 3–4 h, touch dry 40 min, full dry 12 h. |
| Product | LUA460 / LUA461 / LUA462 / LUA463 / LUA464 / LUA465 / LUA468 | 20 % of component Adealer | 20 % of component Adealer | 460–468 series when you need extra resistance to chemical agents (kitchens, bathrooms); OK over chemically bleached wood.Per the dealer, drying time is 'substantially reduced' (read as faster drying) and the sheen rises by about 5 gloss units. Suitable over chemically bleached wood. For LUA468 this is above the official 10 % — a dealer-only option. |
| Product | LKR181 | 40 % of component Aofficial | 40 % of component Aofficial | LKR181 white exterior acrylic enamel: fixed 40 % LNB99.Thinner LZC1051/LZC8643 10–20 %. Dealer card withdrawn — pot life and drying not published. |
| Product | LGA180 | 40 % of component Aofficial | 40 % of component Aofficial | LGA180 clear exterior acrylic converter (25 gloss): fixed 40 % LNB99.Thinner LZC8643/LZC1051 10–30 % (dealer lists LZC8643 only). Dealer confirms 40 % by weight and by volume. Mix (20 °C, dealer): touch dry 2 h, sand 24 h, full dry 24 h; pot life not published. LGA180 is a converter, tinted with KMT pastes (max 30 %). |
| Additive | LTC22 | 4 % of component Adealer | — | To protect the wood from UV colour change.UV-absorber goes into the lacquer, not the hardener. |
| Additive | LTC206 | 1–2 % of component Adatasheet | — | Extra light protection for LJA99.From the LJA99 TDS. |
Percentages are per 100 parts of component A.
Characteristics
- Solids
- 32 ± 1 %dealer
- Density
- 0.954 kg/Ldatasheet
- Chemistry
- aliphatic polyisocyanate (in solvent)recommended
- Lightfastness
- non-yellowing (стойкий к пожелтению)dealer
- Chemical resistance
- raising LNB99 to 20 % in the LUA460–468 series gives higher resistance to chemical agentsdealer
- Pot life
- set by the basedatasheet
- Drying · Conditions
- 18–22 °C, 65–70 % RH (LJA99 TDS); 20 °C (dealer cards)
- Drying · Dust-free
- 10datasheet
- Drying · Touch-dry
- 30datasheet
- Drying · Sand or stack
- 4datasheet
- Drying · Full cure
- 24datasheet
- Drying · Hard dry (h)
- 12–24datasheet
- Drying · Recoat (h)
- 1datasheet
- Reactivity effect
- higher dosage (20 %) markedly speeds drying and raises the sheen by ~5 gloss units in LUA460–468dealer
- Thixotropy
- norecommended
Application
HVLP
- Nozzle
- 1.3–1.5recommended
- Pressure · air
- 2–2.5 bar at inletrecommended
- Spray viscosity
- 18 ± 2 sdatasheet
- Consumption
- 100–150datasheet
The hardener is never applied alone — figures are for the mixed bases.
HVLP
- Nozzle
- 1.6–1.8recommended
- Pressure · air
- 2–2.5 bar at inletrecommended
Exterior materials catalysed 40 % LNB99.
Airmix (air-assisted airless)
- Nozzle
- 0.23–0.28recommended
- Pressure · fluid
- 50–80recommended
- Pressure · air
- 1–2recommended
- Wet film
- 110–163datasheet
Curtain coater
- Consumption
- 120–140official
Curtain coating — LUA 460–468 series (and LJA99 per TDS, 100–150 g/m²).
Process and compatibility
- Mixing
- Stir the base, add LNB99 by weight (Technocolor prints the same % by weight and volume; LNB99 is ≈0.95 kg/L), mix, then add thinner. Let it stand 5–10 min and strain. Shake the mixed material well before use.recommended
- Ratio effect
- LUA series: 10 % standard; 20 % gives better chemical resistance, faster drying and ~5 gloss units more sheen. LGA180/LKR181: exactly 40 %, don't change it.dealer
- Goes with
- LJA99, LUA460, LUA461, LUA462, LUA463, LUA464, LUA465, LUA468, LGA180, LKR181
- Thinners in mixes
- LZC1026, LZC8643, LZC70, LZC1051
- Temperature and humidity
- apply at 15–30 °C (optimum 18–22 °C), RH 65–70 % optimum / 50–70 % during drying, wood moisture 8–14 %; don't dry below 15 °Cdatasheet
Storage
- Packaging
- 1 L,2.5 L,5 Ldealer
- Storage temperature
- 0…+35 °C indoors, ventilated, out of sunlight; close the can carefully after usedatasheet
- Shelf life
- about 12 months in the sealed canrecommended
Mixed into
LGA180 / LJA99 / LJR601 / LKR181 / LUA118 / LUA460 / LUA461 / LUA462 / LUA463 / LUA464 / LUA465 / LUA468
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: brand MILESI, properties, use, solids 32 ± 1 %, packs 1/2.5/5 L, prices
- Milesi LJA99 TDS (local src/pdf/LJA99_TDS.pdf): LNB99 density 0.954, solids 31.4 ± 2 %, 20 % w/w = 19.5 % v/v, pot life 3 h, drying, storage/application conditions
- LUA468 dealer card: series 460–468 table LNB99 10 %, 20 % option for chemical resistance, gloss/drying effect, LTC22 4 %, LNB17/LJA99 substrate note; LUA468 part A solids 22 ± 1 %, viscosity 35 ± 2 s VZ-4, gloss 3 ± 2, pot life 3–4 h, touch 40 min, full 12 h
- LGA180 dealer card: LNB99 40 % w/w and v/v, thinner LZC8643 10–30 %, part A solids 39 ± 1 %, viscosity 32 ± 2, gloss 25 ± 2, touch 2 h / sand 24 h / full 24 h
- official page naming LNB99 and its ratio for LJA99
- official page naming LNB99 and its ratio for LUA460
- official page naming LNB99 and its ratio for LUA461
- official page naming LNB99 and its ratio for LUA462
- official page naming LNB99 and its ratio for LUA463
- official page naming LNB99 and its ratio for LUA464
- official page naming LNB99 and its ratio for LUA465
- official page naming LNB99 and its ratio for LUA468
Not covered by the sources
- No official t-color.ru product page
- No LNB99-specific TDS/SDS (data taken from the LNB99 line in the LJA99 TDS; web search budget exhausted this session)
- Viscosity of LNB99
- NCO content and exact isocyanate type (aliphatic is inferred)
- Official shelf life
- Flash point / hazard classification
- Contents of the first (unpriced, '-') pack option on the dealer card
- Not used in any official finishing schedule (information/technology)
- Pot life of LGA180 + 40 % LNB99 (drying is on the dealer card); pot life and drying of LKR181 (dealer card 404)
- Dealer wording on 20 % LNB99 drying effect ('скорость сушки сокращается') is directionally ambiguous