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S100

S100 Retarder thinner for PU (very slow)

Very slow retarder thinner for 2K polyurethane and acrylic materials. Very low evaporation rate: keeps the wet film open longer, improves flow-out and stops air bubbles / solvent pop in the film in hot weather. Added in small amounts on top of the main thinner (S50/S70/S80), not instead of it.

  • Retarder for 2K PU and acrylic lacquers, enamels and primers in heat (above ~25 °C)
  • Stops bubbles / solvent pop in the lacquer film in summer
  • Better flow-out of high-gloss (100 gloss) lacquers and enamels and table-top lacquers
  • Fights dry spray on big flat panels in hot, dry air

Ask about S100

Answers are based on the S100 data and the products it mixes with.

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Mixing matrix

  • S50 / S70 / S80Thinner
    % by weight: 5–10 %dealer% by volume: not stated %dealer

    Heat, poor flow-out, bubbles. Main thinner per the host material (S50 for primers and matt, S70/S80 for gloss).

    Dealer cards: PTL60 SM — 'small amounts of S100 (5–10 %) on top of the main thinner'; PTL200 and PPL500 — 'in hot weather S100 or S101 retarder, 5–10 % on top of the main thinner'.

  • S70 / S80Thinner
    % by weight: 10–15 %dealer% by volume: not stated %dealer

    ATL200 acrylic 100-gloss lacquer in hot weather.

    'To improve flow in hot weather use S100 or S101 retarder at 10–15 %' (dealer).

  • S50 / S80Thinner
    % by weight: до ~5 % от общей доли разбавителяrecommended

    Matt/semi-matt lacquers and primers above 25–28 °C or when dry spray shows.

    Never exceed the host's total thinner range — build drops and sag risk rises.

  • S101Thinner
    % by weight: interchangeable alternative %dealer

    If S100 isn't to hand

    Dealer names S101 as an alternative to S100; no official S101 page exists.

Percentages are per 100 parts of component A.

Characteristics

Evaporation rate
очень низкая — самый медленный в линейке S (каталог: S10/S13/S30 быстрые; S11/S12/S31/S50 средние; S70/S80/S90 низкая скорость испарения; S100 очень низкая)catalog
Dilution power
not stated for S100 (catalog gives S70/S80 'средняя разбавляющая способность', S31/S50 'хорошая'; S100 row lists only evaporation)catalog
Chemistry
ПУ / акриловые 2К материалы (тип «ПУ»)dealer
Effect on cure
Не ускоряет и не замедляет химическое отверждение; удлиняет время «от пыли» и «на отлип», пока растворитель уходит из плёнки.recommended
Effect on solids
Каждый % разбавителя снижает сухой остаток рабочей смеси и толщину за проход.catalog
Solids
0recommended

Application

HVLP

Nozzle
по паспорту основного материала — S100 сопло не меняетrecommended
Pressure · air
as host material; if anything 0.1–0.2 bar less, since the slower film flows out without extra atomisationrecommended
Flash-off
увеличить на 30–50 % против паспорта при межслойной выдержкеrecommended

Add after the hardener and main thinner, stir, check viscosity with the cup. On verticals lay thinner coats or it'll sag. Keep the booth well ventilated and clean — the film stays dust-catching longer.

Airmix (air-assisted airless)

Nozzle
по паспорту основного материалаrecommended
Pressure · fluid
20 barofficial
Pressure · air
1–2 barofficial

Airmix needs less thinner overall — keep the retarder at the low end.

Conventional spray

Nozzle
по паспорту основного материалаrecommended

High-pressure guns dry the fan more — this is where S100 helps most in heat.

Process and compatibility

Temperature and humidity
Use when the shop is above ~25 °C; at 18–25 °C normally not needed.catalog
Don'ts
  • Don't use it as the only thinner — only on top of the main one
  • Don't exceed the host material's total thinner range
  • Don't recoat too early — trapped solvent pops
  • Don't add to polyester, nitro or waterborne materials
  • Don't expect it to change cure speed — it only changes evaporation

Storage

Packaging
1 л,5 л,25 лdealer
Storage temperature
в плотно закрытой таре, в прохладном месте вдали от огня; 5–25 °Crecommended

Safety: Flammable organic solvent blend. Use with good ventilation, an organic-vapour respirator (A2) and gloves; keep away from sparks and naked flames; in 2K mixes the hardener adds isocyanate exposure.

Mixed into

ATL200 / ATL90 SM / PC210 / PC80 / PPL50 SM / PPL500 / PTL200 / PTL202 / PTL207 / PTL50 G / PTL50 M / PTL50 SG / PTL50 SM / PTL50 UM / PTL50090 / PTL60 SM / PTL61 / PTL80 G / PTL80 M / PTL80 SG / PTL80 SM / PTL80 UM / S101 / S50

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
  • Composition, density, flash point, boiling range, relative evaporation rate (numeric) unpublished
  • Shelf life unpublished
  • Official product pages of PU/acrylic materials never list S100 in their thinner tables — all dosages come from dealer cards (5–10 % PTL60 SM/PTL200/PPL500; 10–15 % ATL200)
  • Basis of the dealer % (per part A vs per mix) not stated
  • Footnote to 'S100*' in the 2019 catalog thinner table is lost in the readkong copy
  • S101 alternative has no official page and no data
  • Not used in any official finishing schedule (information/technology)
  • No dedicated t-colormarket 'Все технические характеристики' block for S100
  • No Technocolor TDS/SDS PDF found for S100 (web search budget exhausted in this run; verifier re-check 2026-10-05 also blocked)
  • Dealer % for S100 has no by-weight/by-volume split and no basis (except PPL500 card: recipe in weight parts)