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PolyurethaneLacquerGloss: 90 GU 60°

PTL80 G

PTL80 G PU lacquer-primer (self-sealer), 90 gloss

Two-pack polyurethane self-sealing lacquer (lacquer-primer) for furniture: the same product goes on as sealer and as topcoat. Dries fast, flows out very well and leaves a smooth, pleasant-to-the-touch film with good physical and chemical resistance and a good hardness/flexibility balance. Raises the grain only minimally. Part A is 40 % solids; cured with the aromatic hardener PC10 (50 %) and thinned with S50. Gloss version; for gloss Technocolor now offers dedicated systems (PTL200 / AC200).

  • Furniture fronts and panels in various wood species
  • Self-sealing 'lacquer over lacquer' system with no separate sealer (official: 'can be used as a self-sealer')
  • Topcoat over PU sealer and over CTU-series stain (dealer instruction)
  • Interior use only (dealer, PTL80 UM)

Mix calculator

g
Hardener50.0 %

PC10: 50.0 % — fixed by the datasheet

When: 2022 catalog: 'Hardener PC10 50 %'.

Thinner25.0 %

When: Always; universal medium-evaporation thinner.

Ratio 100 : 50.0 : 25.0

ComponentWeigh out
PTL80 Gpart A286 g
PC10Hardener143 g
S50Thinner71.4 g
Total500 g

Covers roughly 3.70 m² at 135 g/m².

Pot life of the mix: 4 h.

Ask about PTL80 G

Answers are based on the PTL80 G data and the products it mixes with.

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Mixing matrix

  • PC10Hardener
    % by weight: 50 %catalog

    2022 catalog: 'Hardener PC10 50 %'.

    PC10 is aromatic, highly reactive and fast-drying, 24 ± 1 % solids (dealer). Fixed ratio — do not adjust by eye.

  • S50Thinner
    % by weight: 20–30 (typ. 25) %official% by volume: 25–35 %official

    Always; universal medium-evaporation thinner.

    Dealer lists 20–30 % for both weight and volume; official site gives 20–30 % by weight = 25–35 % by volume. Go by spray viscosity, 18–22 s DIN4.

  • S100Thinner
    % by weight: 5–10 %dealer

    Only when needed to improve flow-out: heat, draughts, large flat panels, solvent pop/bubbles in summer.

    Dealer: 'use small amounts of S100 retarder (5–10 %) in addition to the main thinner'. Official S100 page: prevents air bubbles in the film in summer. Slows drying — more dust pick-up and more sag risk.

  • S80Thinner
    % by weight: 20–30 %

    Not listed by Technocolor for PTL80; fallback only above ~25 °C when S100 is not at hand.

    Prefer the listed S50 + 5–10 % S100.

Percentages are per 100 parts of component A.

Characteristics

Solids · Part A
40 %catalog
Solids · Part A (2022)
40 %catalog
Solids · Ready mix
29–32 % by weightrecommended
Spray viscosity
18–22 srecommended
Density · Ready mix
0.95–1.02 g/cm³recommended
Gloss
90 GU 60°catalog
Pot life
4 hrecommended
Drying · Conditions
20 °C
Drying · Dust-free
8–12 minrecommended
Drying · Touch-dry
15 minrecommended
Drying · Sand or stack
2–4 hrecommended
Drying · Full cure
6 hrecommended
Drying · Polish or test
5–7 daysrecommended
Hardness
good balance of hardness and flexibilityofficial
Elasticity
good balance of hardness and flexibilityofficial
Chemical resistance
good physical and chemical resistancecatalog
Lightfastness
low — aromatic hardener, will ambre/yellow; interior onlyrecommended
Thixotropy
norecommended
Grain raising
raises the grain minimallycatalog
Self-sealing
yesofficial
Viscosity
55 ± 5 srecommended

Application

HVLP

Nozzle
1.5–1.7 mmrecommended
Pressure · air
2–2.5 barrecommended
Pressure · Air cap
0.7 barrecommended
Spray viscosity
18–22 srecommended
Consumption
120–150 g/m²catalog
Wet film
120–150 µmrecommended
Coats
2–3recommended
Flash-off
5–10 minrecommended
Recoat
2–24 hrecommended
Sanding between coats · Grit
P320–P400
Sanding between coats · Why ru
Дилер шлифует ПУ изолирующий грунт P280–P320 перед PTL80 M; когда PTL80 сам служит изолирующим грунтом, плёнка тоньше/твёрже → P320–P400 (P400 перед финишем с блеском 10–20).
Gun distance
15–20 cmrecommended

Fan fully open, 50–75 % overlap. Don't overload the finish coat: low-sheen lacquers (10–40 gloss) go glossier and sag when laid on thick.

Conventional spray

Nozzle
1.4–1.6 (typ. 1.5) mmrecommended
Pressure · air
3–4 barrecommended
Pressure · fluid
0.5–1.5 barrecommended
Spray viscosity
18–20 srecommended
Consumption
120–150 g/m²catalog

Catalog: application icon = pneumatic spray (orange icon). Transfer efficiency up to 40 % (official methods page).

Airmix (air-assisted airless)

Nozzle
0.23–0.28 mmrecommended
Pressure · fluid
20–60 barrecommended
Pressure · air
1–2 barofficial
Spray viscosity
20–25 srecommended
Consumption
120–150 g/m²catalog

Production option; keep the matted lacquer stirred in the pot (matting agent settles).

Process and compatibility

Substrate preparation
Solid wood/veneer at 8–10 % MC, sanded P150–P180 (veneer P180–P220), de-dusted. Over CTU stain — dry 10–15 min (dealer).recommended
Goes over
[object Object] / [object Object] / [object Object]
Self-sealing schedule · Why ru
Официальная страница говорит, что PTL80 может служить сам себе изолирующим грунтом, но схемы не даёт; составлено по официальным соотношениям, времени сушки дилера и стандартной практике шлифовки PU.
Sanding · Between coats
P320–P400
Sanding · Final
can be polished after full cure (≥ 7 days)
Sanding · Why ru
Плёнку с блеском 90 можно шлифовать и полировать, как другие глянцевые ПУ, но только после полной сшивки.
Temperature and humidity · Temperature (°C)
18–25
Temperature and humidity · RH %
50–70
Temperature and humidity · Why ru
Все данные Technocolor приведены для 20 °C; стандартное окно для 2К ПУ. При температуре выше ~25 °C добавьте 5–10 % S100.
Don'ts
  • Don't change the hardener ratio (PC10 50 % by weight, fixed)
  • Don't use past pot life (4 h at 20 °C) — never thin down mix that has started to thicken
  • Don't brush it — dries far too fast (no source lists brushing)
  • Not for exterior use, and test first over white/pale stains — the aromatic hardener yellows
  • Don't polish the final low-sheen coat
  • It is not PTL50 (the thixotropic one) — PTL80 flows and will sag on verticals if overloaded

Storage

Storage temperature
5–30 °Crecommended

Safety: Solvent-borne 2K PU: highly flammable; the hardener contains isocyanates. Spray in a ventilated booth, wear an A2P2 carbon-filter respirator (air-fed is better), nitrile gloves and eye protection. Keep the hardener tightly closed — it reacts with air moisture.

Mixed into

PC10

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).

Not covered by the sources
  • shelf life / storage temperature (not published anywhere found)
  • density of part A and of the ready mix (derived only)
  • hardness (pencil / König) and elasticity (Erichsen) numbers — only qualitative
  • dust-free and sand/stack times (derived; only touch-dry 15 min and full-dry 6 h published)
  • nozzle/pressure data — none published; all spray settings are derived
  • no Technocolor ТДС/SDS PDF found for PTL80 or PC10 (web search budget exhausted; woodonline offers documents only on request)
  • PTL80 is not used in any of the 11 official finishing schedules (information/technology)
  • PTS80 (sealer named in the dealer instruction) has no official or dealer product page
  • listed only in the 2022 catalog; absent from the 2025–26 catalog, t-color.ru and dealers — likely discontinued
  • no viscosity/pot life/drying data for G (all carried over from PTL80 M, derived)
  • packaging unknown