LNB6
LNB6 hardener for polyurethane coatings (Milesi LNB06)
Milesi polyurethane (isocyanate) hardener, component B for 2K PU coatings. On the Technocolor site it appears only on the LBA528 clear thixotropic sealer page (LNB6/LNB77, 50 % by weight and by volume); it has no page of its own and no listing at the t-colormarket.ru dealer (a search returns only LNB613 and LNB6A37, which are different products). The Milesi LBA528 TDS writes it as 'LNB 06' and gives a 2 h pot life with it. The Bulgarian Milesi distributor writes 'LNB05 or LNB06 (higher solids)'; the Ukrainian dealer says it improves build and softness while keeping good wetting. Main job: sealing under PU topcoats, including electrostatic lines.
- second component of the LBA528 clear thixotropic high-solids PU sealer (official, 50 %)
- electrostatic sealing with LBA528 + LZC13 (Milesi BG schedule)
- per a Milesi dealer, second component of the LGA532/LGA533 thixotropic electrostatic lacquers when you want more build and a softer feel
Ask about LNB6
Answers are based on the LNB6 data and the products it mixes with.
Mixing matrix
- LBA528base% by weight: 50 %official% by volume: 50 %official
LBA528 clear thixotropic high-solids PU sealer — the only base for which Technocolor officially lists LNB6 (alongside LNB77). 2:1 by weight and by volume. Thinner LZC1026/LZC1051/LTC40 10–30 %.
LNB6 is Technocolor's code; Milesi writes the same hardener as LNB06 / 'LNB 06'. Not the same thing as LNB613 or LNB6A37 — those are different hardeners.
- LBA528base% by weight: 50 %dealer% by volume: 50 %dealer
Electrostatic line (Bulgarian Milesi distributor's finishing schedule): LBA528 + 50 % LNB05 or LNB06 ('higher solids') + 20–25 % LZC13 electrostatic thinner. Example: 1 l LBA528 + 0.5 l LNB06 + 0.3 l LZC13. Dries in 30–45 min, sand after 3 h at P280–P320, topcoat with LGA531–535 within 4 h of sanding.
- % by weight: 50 %dealer
LGA532 (45 gloss) / LGA533 (30 gloss) thixotropic electrostatic PU lacquers: per the Ukrainian Milesi dealer, 'LNB 06 (50 %) improves build and softness while keeping excellent wetting'. Technocolor does not list LNB6 for these lacquers (official: LNB42/LNB5/LNB77).
Not an official Technocolor pairing — spray a test panel first: the hardener type noticeably shifts the sheen.
- % by weight: 10–30 %official% by volume: 10–30 %official
Normal spraying. Milesi TDS: gun 15–25 %, electrostatic 20–40 % (LZC1026 or LTC40).
- LZC13Thinner% by weight: 20–25 %dealer% by volume: 20–25 %dealer
Electrostatic spraying: dedicated resistivity-controlled thinner.
The BG example is 0.3 l per 1 l LBA528 = 30 % of the sealer (or 20 % of the 1.5 l sealer+hardener mix) — so the stated 20–25 % is probably relative to the A+B mix. The example is in litres (by volume).
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| base | LBA528 | 50 %official | 50 %official | LBA528 clear thixotropic high-solids PU sealer — the only base for which Technocolor officially lists LNB6 (alongside LNB77). 2:1 by weight and by volume. Thinner LZC1026/LZC1051/LTC40 10–30 %.LNB6 is Technocolor's code; Milesi writes the same hardener as LNB06 / 'LNB 06'. Not the same thing as LNB613 or LNB6A37 — those are different hardeners. |
| base | LBA528 | 50 %dealer | 50 %dealer | Electrostatic line (Bulgarian Milesi distributor's finishing schedule): LBA528 + 50 % LNB05 or LNB06 ('higher solids') + 20–25 % LZC13 electrostatic thinner. Example: 1 l LBA528 + 0.5 l LNB06 + 0.3 l LZC13. Dries in 30–45 min, sand after 3 h at P280–P320, topcoat with LGA531–535 within 4 h of sanding. |
| base | LGA532 / LGA533 | 50 %dealer | — | LGA532 (45 gloss) / LGA533 (30 gloss) thixotropic electrostatic PU lacquers: per the Ukrainian Milesi dealer, 'LNB 06 (50 %) improves build and softness while keeping excellent wetting'. Technocolor does not list LNB6 for these lacquers (official: LNB42/LNB5/LNB77).Not an official Technocolor pairing — spray a test panel first: the hardener type noticeably shifts the sheen. |
| Thinner | LZC1026 / LZC1051 / LTC40 | 10–30 %official | 10–30 %official | Normal spraying. Milesi TDS: gun 15–25 %, electrostatic 20–40 % (LZC1026 or LTC40). |
| Thinner | LZC13 | 20–25 %dealer | 20–25 %dealer | Electrostatic spraying: dedicated resistivity-controlled thinner.The BG example is 0.3 l per 1 l LBA528 = 30 % of the sealer (or 20 % of the 1.5 l sealer+hardener mix) — so the stated 20–25 % is probably relative to the A+B mix. The example is in litres (by volume). |
Percentages are per 100 parts of component A.
Characteristics
- Solids
- 'higher solids' (Bulgarian Milesi distributor's wording); exact figure not publisheddealer
- Density
- ≈ 0.99 g/mlrecommended
- Viscosity
- 20 ± 2 sdatasheet
- Pot life · By base
- 2 h
- Drying · Conditions
- 20 °C, 70 % RH (Milesi TDS test conditions)
- Drying · Dust-free
- 15datasheet
- Drying · Touch-dry
- 45datasheet
- Drying · Before sanding
- 2datasheet
- Drying · Fully dry
- 5datasheet
- Drying · Recoat without sanding (h)
- 1–3datasheet
- Drying · Topcoat after (h)
- 4datasheet
- Elasticity
- Gives a softer film and better build (Milesi dealer).dealer
Application
HVLP
- Nozzle
- 1.7–2
- Pressure · air · Inlet pressure, min
- 2
- Pressure · air · Inlet pressure, max
- 2.5
- Pressure · air · at the cap, max
- 0.7
- Spray viscosity
- 20 ± 2 sdatasheet
- Consumption
- 150official
- Why ru
- LNB6 никогда не распыляют отдельно; краскопульт настраивают на смесь LBA528 + LNB6. LBA528 — тиксотропный изолирующий грунт с 50 % сухого остатка, а LNB6 описан как отвердитель с повышенным сухим остатком, так что смесь густая даже при рабочей вязкости по техописанию 20 с CF4. Тиксотропным толстослойным изолирующим грунтам на HVLP нужно 1,7–2,0 мм, чтобы положить 150 г/м² без «голодания» пистолета (та же логика, что и в заметке владельца: для грунта PPS50277 1,5 мм мало). Давление — по практике владельца для HVLP (вход ~2,0–2,2 бар при нажатом курке, ≤ 0,7 бар на головке); для более густой смеси допустимо до 2,5 бар на входе.
1.7–2.0 mm tip, 2.0–2.5 bar inlet with the trigger pulled, ≤ 0.7 bar at the cap. 150 g/m² per coat; a second coat without sanding within 1–3 h (TDS).
Airmix (air-assisted airless)
- Nozzle
- 0.28–0.33
- Pressure · fluid
- 60–100
- Pressure · air
- 1–2
- Consumption
- 150official
- Why ru
- Тиксотропный высоконаполненный PU изолирующий грунт при производственных расходах. Официальная страница методов описывает airmix в общем виде (гидравлическое давление «до 20 бар», распыляющий воздух 1–2 бар); на практике густым тиксотропным изолирующим грунтам нужно больше давления материала, обычно 60–100 бар с соплом 11–13 thou. Ни один источник для LBA528/LNB6 этого не указывает — подбирайте по пробной панели.
For production runs: 0.011–0.013" tip, 60–100 bar fluid, 1–2 bar atomising air.
Electrostatic
- Nozzle
- 0.28–0.33
- Pressure · fluid
- 50–90
- Pressure · air
- 1–2
- Consumption
- 150official
- Why ru
- LBA528 официально допущен к электростатическому нанесению при 150 г/м²; официальное соотношение — 50 % LNB6, техописание Milesi даёт 20–40 % разбавителя (LZC1026/LTC40) для электростатики, а схема BG использует LZC13 (с контролируемым удельным сопротивлением). Сопло и давление — обычные настройки airmix-электростатики для тиксотропного изолирующего грунта, давление материала чуть ниже, чем в обычном airmix, так как часть работы делает эффект обволакивания.
The Milesi TDS allows LZC1026 or LTC40 at 20–40 % for electrostatic; the Bulgarian distributor uses the dedicated electrostatic thinner LZC13 at 20–25 %. If wrap-around is poor, switch to LZC13.
Process and compatibility
- Goes with
- LBA528, LGA532, LGA533
- Sanding
- P280–P320 after 3 h; topcoat within 4 h of sandingdealer
- Mixing
- Weigh it: 100 parts LBA528 + 50 parts LNB6, stir, then thin (10–30 %) to about 20 s CF4. Use the mix within 2 h.recommended
- Don'ts
- don't confuse LNB6 with LNB613 or LNB6A37 — they are different hardeners
- don't cut the dose to stretch pot life — the film stays soft and clogs the paper
- don't leave the can open — isocyanate reacts with air moisture and goes cloudy/gels
- don't mix two different hardeners in one batch
Storage
Safety: Contains isocyanates and organic solvents: flammable, harmful if inhaled, can cause sensitisation. Use a ventilated spray booth, an A2 carbon respirator or air-fed mask, nitrile gloves and goggles; spark-proof equipment. Don't seal leftover mixed material airtight.
Mixed into
Sources
Value tags: “official”, “dealer”, “catalog”, “schedule” are Technocolor data; “workshop” is from our own datasheets; “recommended” comes from industry best practices (hover to see the reasoning).
- official LBA528 page: hardener LNB6/LNB77 50 % by weight and volume; thinner LZC1026/LZC1051/LTC40 10–30 %; spray and electrostatic 150 g/m²
- dealer search: no LNB6 listing (returns LNB613, LNB6A37)
- Milesi LBA528 TDS (EN): catalysis 50 % LNB 06, pot life 2 h, ready-mix 20 s CF4, drying 15'/45'/5 h, sand 2 h, recoat 1–3 h, topcoat after 4 h
- Milesi BG electrostatic finishing technology: LBA528 + 50 % LNB05/LNB06 ('higher solids') + 20–25 % LZC13; example 1 l + 0.5 l + 0.3 l; sand after 3 h P280–P320
- Ukrainian Milesi dealer, LGA532/LGA533: LNB 06 (50 %) improves build and softness
- application methods (nozzle guidance)
- characteristics vocabulary
Not covered by the sources
- no official t-color.ru page for LNB6 (only referenced on LBA528)
- not sold at t-colormarket.ru — search for LNB6/LNB06 returns only LNB613 and LNB6A37
- no LNB6/LNB06 technical data sheet or SDS found (edid-milesi.bg and faichim.com LNB06 URLs 404; web search budget exhausted)
- viscosity and density of the hardener (density derived)
- isocyanate type (aromatic vs aliphatic) / yellowing resistance
- shelf life, storage temperature, packaging
- flash point / hazard statements
- not used in any official Technocolor finishing schedule
- solids % of the hardener itself (BG distributor says only 'higher solids')