KGA1
KGA1 clear (neutral) polyurethane tinting converter, 20 gloss
Two-pack clear (neutral) polyurethane tinting base, 20 gloss. Mixed with pigment pastes it makes coloured PU enamels and tinted lacquers to any SPECTRUM colour. Excellent compatibility with tinting pastes. Aromatic PU system, cured with LNB77 or LNB20 hardener (50 % by weight) and thinned with LZC1026/LZC8643. Meets EN 71-3 (toy safety — migration of elements).
- Tinting base for PU enamels to RAL/NCS/sample in an in-house SPECTRUM tinting station
- Tinted clear PU lacquers at 20 gloss
- Interior furniture, doors/fronts, carcass parts, chairs — hand or robot spray
- Deep and dark colours (clear base; use the white converter KKR1 for pastels)
Mix calculator
Ask about KGA1
Answers are based on the KGA1 data and the products it mixes with.
Mixing matrix
- LNB77Hardener% by weight: 50 %official% by volume: 50 %official
Default option and the cheaper hardener. Hard dry 18 h.
The TDS makes no non-yellowing claim for this mix — for whites and pale shades prefer LNB20.
- LNB20Hardener% by weight: 50 %official% by volume: 50 %official
Pale and white colours where yellowing matters; faster cure (hard dry 12 h).
Dealer note: 'for use with the LBA and LGA series'.
- LNB190Hardener% by weight: 50 %datasheet% by volume: 53.2 %datasheet
Best yellowing resistance ('excellent' per the TDS).
Not listed by Technocolor (official site) and not found at t-colormarket.ru — Milesi TDS only; check availability with the dealer.
- % by weight: 20–30 %official% by volume: 20–30 %official
Bringing the mix to spray viscosity. LZC1026 is the universal (medium-evaporation, 18–22 °C) thinner; LZC8643 is the slow one (heat, large panels, better flow-out).
Neither LZC1026 nor LZC8643 turns up in a t-colormarket.ru search. LZC8643 is officially named 'slow PU thinner'; LZC1026 is Milesi's universal thinner (no t-color.ru page). Numeric evaporation rates are not published.
- LZC8643Thinner% by weight: 30 %datasheet% by volume: 35 %datasheet
TDS recipe: 30 % LZC8643 gives 16 ± 2 s Ford 4 — ready to spray.
Same with all three hardeners.
- CS pastes (SPECTRUM)Additive% by weight: per SPECTRUM recipe; maximum not published %recommended
Tinting to recipe.
CS = pastes for solvent-borne (PU/acrylic) systems per the tinting leaflet; the allowed share for KGA1 is not published.
| Role | Material | % by weight | % by volume | When |
|---|---|---|---|---|
| Hardener | LNB77 | 50 %official | 50 %official | Default option and the cheaper hardener. Hard dry 18 h.The TDS makes no non-yellowing claim for this mix — for whites and pale shades prefer LNB20. |
| Hardener | LNB20 | 50 %official | 50 %official | Pale and white colours where yellowing matters; faster cure (hard dry 12 h).Dealer note: 'for use with the LBA and LGA series'. |
| Hardener | LNB190 | 50 %datasheet | 53.2 %datasheet | Best yellowing resistance ('excellent' per the TDS).Not listed by Technocolor (official site) and not found at t-colormarket.ru — Milesi TDS only; check availability with the dealer. |
| Thinner | LZC1026 / LZC8643 | 20–30 %official | 20–30 %official | Bringing the mix to spray viscosity. LZC1026 is the universal (medium-evaporation, 18–22 °C) thinner; LZC8643 is the slow one (heat, large panels, better flow-out).Neither LZC1026 nor LZC8643 turns up in a t-colormarket.ru search. LZC8643 is officially named 'slow PU thinner'; LZC1026 is Milesi's universal thinner (no t-color.ru page). Numeric evaporation rates are not published. |
| Thinner | LZC8643 | 30 %datasheet | 35 %datasheet | TDS recipe: 30 % LZC8643 gives 16 ± 2 s Ford 4 — ready to spray.Same with all three hardeners. |
| Additive | CS pastes (SPECTRUM) | per SPECTRUM recipe; maximum not published %recommended | — | Tinting to recipe.CS = pastes for solvent-borne (PU/acrylic) systems per the tinting leaflet; the allowed share for KGA1 is not published. |
Percentages are per 100 parts of component A.
Characteristics
- Solids
- 47.4 ± 2 % by weight, part A (KGA1)datasheet
- Viscosity
- 75 ± 5 sdatasheet
- Density
- 1.006 ± 0.030 kg/l (part A); 8.4 ± 0.3 lb/US galdatasheet
- Gloss
- 20 GU 60°official
- Pot life
- 3 hdatasheet
- Drying · Conditions
- 18–22 °C, 65–70 % RH (TDS)
- Drying · Dust-free
- 15datasheet
- Drying · Touch-dry
- 30datasheet
- Drying · Overcoat (h)
- 2datasheet
- Drying · Full cure
- 18datasheet
- Drying · Sand or stack
- sand/denib after ≥ 12–18 h (overnight), pack/stack after ≥ 24 hrecommended
- Hardness
- good surface hardness typical of a 2K aromatic PUrecommended
- Lightfastness
- good yellowing resistance with LNB20, excellent with LNB190; the TDS makes no yellowing claim for the LNB77 mixdatasheet
- Chemical resistance
- exceptional chemical and stain resistancedealer
- Certification
- EN 71-3 (2013)datasheet
- Thixotropy
- norecommended
Application
HVLP
- Nozzle
- 1.3–1.5 mmrecommended
- Pressure · air
- 1.8–2.2 bar at gun inlet, trigger pulledrecommended
- Spray viscosity
- 16 ± 2 s Ford 4datasheet
- Consumption
- 120–160 g/m²datasheet
- Wet film
- 140datasheet
- Coats
- 1–2 coats; 2 for dark/strong colours or full hiding over a clear primerrecommended
- Flash-off
- 10–15 minrecommended
- Recoat
- after 2 hdatasheet
- Sanding between coats
- Only if overcoating after it has gone hard (next day): P400–P500 dry, then dust offrecommended
15–20 cm distance, 50 % overlap, full fan. Stir the mix well before spraying.
Conventional spray
- Nozzle
- 1.4–1.6 mmrecommended
- Pressure · air
- 3–4 barrecommended
- Pressure · fluid
- 0.8–1.5 bar (pressure pot/tank)recommended
- Spray viscosity
- 16 ± 2 s Ford 4datasheet
- Consumption
- 120–160 g/m²datasheet
- Wet film
- 140datasheet
- Recoat
- after 2 hdatasheet
Airmix (air-assisted airless)
- Nozzle
- 0.23–0.28 mm (tip 09–11 thou, 20–40° fan)recommended
- Pressure · fluid
- 40–80 barrecommended
- Pressure · air
- 1–2 barrecommended
- Spray viscosity
- 16–20 s Ford 4 (thin 20–30 %)recommended
- Consumption
- 120–160 g/m²datasheet
The TDS lists hand spray and robot spray without naming the equipment.
Electrostatic
- Nozzle
- as for the base system (HVLP/conventional 1.3–1.5 mm or airmix 09–11 thou)recommended
Not claimed for KGA1 — test before production.
Process and compatibility
- Substrate preparation
- Over a sanded PU primer (P280–P320 on the primer), dust-free. Wood moisture 8–14 %.recommended
- Sanding
- Don't sand or polish the final 20-gloss coat; if overcoating after cure, P400–P500.recommended
- Temperature and humidity
- Ideal 18–22 °C at 65–70 % RH; apply only between 15 and 30 °C; dry at no less than 15 °C and 50–70 % RH.datasheet
- Don'ts
- Don't apply below 15 °C or above 30 °C
- Don't use the mix past its 3 h pot life
- Don't decant into unsuitable containers — polyethylene or stainless steel only
- Don't exceed 160 g/m² per pass — sags on verticals
- Don't brush or roll — not a listed method
Storage
- Shelf life
- 18 months from productiondatasheet
- Storage temperature
- 0–35 °C, indoors, ventilated, out of direct sundatasheet
Safety: Highly flammable liquid (H225). Skin and eye irritant (H315, H319), may cause drowsiness (H336), suspected carcinogen and reproductive toxin (H351, H361), may damage hearing with prolonged exposure (H373). Contains isobutyl acetate, xylene, ethylbenzene, n-butyl acetate, ethyl acetate. Spray in a booth with spark-proof equipment, A-filter respirator and gloves; the hardener is an isocyanate.
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 150 g/m², LNB77/LNB20 50/50 %, LZC1026/LZC8643 20–30 %
- Milesi TDS (KGA1x sheen series): density, solids, viscosity, ratios for LNB77/LNB20/LNB190, pot life, drying, application, storage, conditions
- Milesi US SDS: hazard statements, composition
- US distributor product description (aromatic, yellow resistant, chemical/stain resistance)
- Dealer: LNB77 hardener (MILESI, solids 25 ± 1 %)
- Dealer: LNB20 hardener (MILESI, for LBA/LGA series)
- Official: white sister converter KKR1 (same hardener system)
- Official application methods page
- Dealer search — no KGA1 product found
- Official: LZC8643 slow PU thinner
Not covered by the sources
- No t-colormarket.ru product page for KGA1 (search by code returns nothing) — dealer characteristics absent; TDS used instead
- Packaging sizes not published by Technocolor
- Maximum pigment paste addition (TDS shows placeholder 'up to XX %')
- Solids by volume / dry film per coat not published
- Sanding/stacking time, sanding grit not published
- Hardness, elasticity values not published
- Numeric evaporation rates of LZC1026 (universal) / LZC8643 (slow) not published
- Official volume % for LNB77/LNB20 (50 %) differs from TDS (51.7 / 52.1 %)
- No official finishing schedule uses KGA1
- LNB190 availability in Russia unconfirmed