LDA846
LDA846 Thixotropic gloss PU lacquer
Two-pack clear gloss thixotropic MILESI polyurethane lacquer: holds a heavy wet film on verticals and profiled parts without running. Maximum build/hiding and enhanced gloss (about 90 GU). Catalysed with LNB837 at 50 % of the lacquer weight (2 parts lacquer : 1 part hardener).
- interior doors and window units
- cinema seating
- coffins
- interior furnishings
Mix calculator
Ask about LDA846
Answers are based on the LDA846 data and the products it mixes with.
Mixing matrix
- LNB837Hardener% by weight: 50 %official% by volume: 50 %official
Always — the only hardener listed for LDA846.
Fixed ratio, 50 % by weight and by volume (2 parts lacquer : 1 part hardener). LNB837 is also the hardener for the LQA836 isolating sealer (at 100 %). The t-colormarket.ru LNB837 page carries LQA836's text by mistake — ignore its numbers for LDA846.
- % by weight: 0–30 %official% by volume: 0–30 %official
LZC1026 — fast PU reducer (the TDS default); LZC1051 — general PU thinner, the official alternative.
LZC1026 is fast: on big flats or above ~25 °C it can leave dry edges and poor flow — switch to LZC1051. The slow PU thinners in the range (LZC70, LZC8643) are not officially listed for LDA846.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | LNB837 | 50 %official | 50 %official | Always — the only hardener listed for LDA846.Fixed ratio, 50 % by weight and by volume (2 parts lacquer : 1 part hardener). LNB837 is also the hardener for the LQA836 isolating sealer (at 100 %). The t-colormarket.ru LNB837 page carries LQA836's text by mistake — ignore its numbers for LDA846. |
| Thinner | LZC1026 / LZC1051 | 0–30 %official | 0–30 %official | LZC1026 — fast PU reducer (the TDS default); LZC1051 — general PU thinner, the official alternative.LZC1026 is fast: on big flats or above ~25 °C it can leave dry edges and poor flow — switch to LZC1051. The slow PU thinners in the range (LZC70, LZC8643) are not officially listed for LDA846. |
Percentages are per 100 parts of component A.
Characteristics
- Solids · Part A
- 52 % by weightdealer
- Solids · As applied
- 45 % by weightdealer
- Viscosity · Part A
- 34 ± 2 sdealer
- Viscosity · Catalysed mix
- 16 ± 2 sdealer
- Density
- 0.990 ± 0.01 g/cm³ (specific gravity)dealer
- Gloss
- 90 GU (measuring angle not stated; 60° assumed)dealer
- Pot life
- ≥ 6 hdealer
- Drying · Dust-free
- 30dealer
- Drying · Touch-dry
- 120dealer
- Drying · Before sanding
- 8–16 hrecommended
- Drying · Fully dry
- 8dealer
- Drying · Conditions
- ambient temperature («за температури довкілля»; TDS gives no figure, ~20 °C assumed)
- Hardness
- surface hardness: gooddealer
- Chemical resistance · Household agents
- excellentdealer
- Chemical resistance · Weathering
- gooddealer
- Yellowing
- typical of PU materialsdealer
- Lightfastness
- limited — will amber over timerecommended
- Thixotropy
- yesofficial
- Hiding and build
- максимальная укрывистость (наполнение), повышенный блескdealer
Application
HVLP
- Nozzle
- 1.3–1.5 mmrecommended
- Pressure · air
- 2–2.5 bar at gun inlet (trigger pulled)recommended
- Spray viscosity
- 16 ± 2 s CF4 (catalysed, unthinned)dealer
- Consumption
- 100–150 g/m²official
- Wet film
- 100–150 µmrecommended
- Coats
- 1–2 coatsrecommended
- Flash-off
- 5–10 minrecommended
- Recoat
- 8–24 h (after sanding)recommended
- Sanding between coats
- P320–P400 dry, or P600–P800 to fix a gloss defectrecommended
Gun 15–20 cm off the part, 50–75 % overlap, fan fully open. Gloss shows every speck — clean booth. Don't sand the final gloss coat; if you must cut-and-polish, wait 3–7 days for hardness.
Conventional spray
- Nozzle
- 1.4–1.6 mm (gravity/suction); 1.0–1.2 mm on a pressure potrecommended
- Pressure · air
- 3–4 bar at gun inletrecommended
- Pressure · fluid
- 0.8–1.5 bar (pressure pot)recommended
- Consumption
- 100–150 g/m²official
The TDS application method is plain spraying. Transfer ~40 % — more material used.
Airmix (air-assisted airless)
- Nozzle
- 0.23–0.28 mm (09–11 thou tip, fine-finish 20–40° fan)recommended
- Pressure · fluid
- 40–80 barrecommended
- Pressure · air
- 1–2 barrecommended
Good choice for chairs and assembled items: higher transfer and less bounce-back in profiles.
Electrostatic
- Nozzle
- 0.23–0.28 mm airmix-electrostatic tip (09–11 thou), or 1.2–1.4 mm air-spray electrostaticrecommended
- Pressure · fluid
- 40–80 barrecommended
- Pressure · air
- 1–2 barrecommended
Not listed by the maker for LDA846 — do a test piece. Earth the part.
Process and compatibility
- Substrate preparation
- Over sanded PU primer (P320–P400), dust off. Not onto bare wood — sealer/primer first.recommended
- Sanding
- Primer P320–P400 before lacquer. Leave the final gloss coat alone; fix defects with P800–P1500 + polish after 3–7 days.recommended
- Temperature and humidity
- 18–25 °C, 50–70 % RH; not below 15 °C — cold/damp PU blushes and dries slowly.recommended
- Don'ts
- Don't thin past ~10 % without a reason — you lose sag resistance and build.
- Don't use mix past pot life (≥ 6 h at 20 °C).
- Don't use over whites/pale timber where colour stability matters — PU ambers.
- Don't trust the t-colormarket LNB837 page numbers — they're LQA836's.
- Don't flood horizontals — thixotropic lacquers level worse (orange peel, unfilled pores).
Storage
- Shelf life · Part A
- 8 месяцевdealer
- Shelf life · Part B LNB837
- 4 месяцаdealer
- Storage temperature
- 5–25 °Cdealer
- Packaging
- 25 лdealer
Safety: Solvent-borne 2K PU; hardener contains isocyanates. Spray in an extracted booth with an A2P2 respirator (air-fed preferred), nitrile gloves, goggles. Flammable — no ignition sources. Don't seal leftover mixed material in a closed can.
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 page: properties, spraying 100–150 g/m², LNB837 50/50 %, LZC1026/LZC1051 0–30 %
- dealer transcription of Milesi TDS: gloss 90, density, solids 52/45 %, viscosity 34 s / 16 s CF4, pot life ≥6 h, drying 30 min/2 h/8 h, resistances, shelf life, thinning 0–10 %, uses, 25 l, storage 5–25 °C
- dealer listing 'Лак ПУ тиксотропный (100 Глосс) Milesi LDA846' (seen via search snippet: solids 52 ± 1 %, dries 2 h; page now redirects elsewhere) — UNVERIFIED, URL redirects to unrelated product as of 2026-10-05
- t-colormarket LNB837 page — carries LQA836 isolant text (pot life 4 h etc.), not applicable to LDA846
- LZC1026 = fast-dry Milesi PU reducer
- LZC1051 PU thinner official page
- application methods (airmix 1–2 bar air, electrostatic for chairs)
- characteristics vocabulary; thixotropic lacquers level worse on flats
Not covered by the sources
- No t-colormarket.ru product page for LDA846 or LZC1026 (search returns nothing; LZC1051 not listed either)
- No original Milesi/Technocolor TDS PDF found; TDS values come from a Ukrainian dealer's transcription (sinay.com.ua)
- Gloss conflict: TDS 90 GU vs dealer title '100 Глосс'
- Thinner range conflict: official 0–30 % vs TDS 0–10 %
- Stack/sand time, recoat window, hardness value (pencil/König), elasticity, abrasion resistance not published
- Official nozzle/pressure guidance not published — all spray settings derived
- Evaporation rate of LZC1051 not published
- Not used in any official finishing schedule (information/technology); no official goes_over/goes_under system
- No SDS / safety data found
- Woodonline listing (32079) now redirects to an unrelated product — '100 Глосс' title and '52 ± 1 %' solids are unverified
- TDS does not state test temperature for viscosity/pot life/drying (ambient)