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AcceleratorsAccelerator

EA1

EA1 Accelerator for polyester (PE) materials

Accelerator (part of the cure system) for Technocolor polyester primers and lacquers — ETS20, EPS20, EPS22, ETL200 (and ETS50 in an official schedule). Works with the peroxide hardener EC1 (standard) or EC2 (slow): PE materials cure by reaction with the peroxide assisted by metal (cobalt) salts and will not cure at room temperature without the accelerator. Standard dose 2 % by weight on the base. The new EA1* formula (per dealer) is more reactive: faster hardness build, full through-cure in thick films, no residual styrene smell, a fuller-looking film that is ready to sand sooner with less shrinkage — at the cost of roughly 10–15 % shorter pot life than the old EA1.

  • Cure accelerator for ETS20, EPS20, EPS22 PE primers and ETL200 PE lacquer — 2 % by weight
  • ETS50 primer in the solid-oak coffin finishing schedule (twin-intake airless)
  • Speed tuning: 1–1.5 % in hot weather (longer pot life), 3 % with EC1 at 3 % for fast cure

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Mixing matrix

  • ETS20base
    % by weight: 2 %official% by volume: 2 %official

    Always with ETS20 (clear PE primer): PE won't cure at room temperature without the accelerator.

    Official: EA1 2 % by weight / 2 % by volume. Order: EA1 into the base, stir well, then EC1/EC2 hardener at 2 %, then thinner.

  • EPS20base
    % by weight: 2 %official% by volume: 2.5 %official

    Always with EPS20 (white PE primer): PE won't cure at room temperature without the accelerator.

    Official: EA1 2 % by weight / 2.5 % by volume. Order: EA1 into the base, stir well, then EC1/EC2 hardener at 2 %, then thinner.

  • EPS22base
    % by weight: 2 %official% by volume: 3.3 %official

    Always with EPS22 (white PE primer, general-purpose (economy)): PE won't cure at room temperature without the accelerator.

    Official: EA1 2 % by weight / 3.3 % by volume. Order: EA1 into the base, stir well, then EC1/EC2 hardener at 2 %, then thinner.

  • ETL200base
    % by weight: 2 %official% by volume: 2 %official

    Always with ETL200 (clear PE high-gloss lacquer, 100 gloss): PE won't cure at room temperature without the accelerator.

    Official: EA1 2 % by weight / 2 % by volume. Order: EA1 into the base, stir well, then EC1/EC2 hardener at 2 %, then thinner.

  • ETS50base
    % by weight: 2 %schedule

    Schedule 'Coffin finishing (PE, clear, gloss)': two coats of ETS50 primer at 250 g/m², twin-intake airless.

    ETS50 has no product page in the local sources — recipe from the schedule only. Schedule: 30–40 min at 20 °C between coats, 8–12 h after the second coat, then sand P360/P400 and topcoat with PTL500 PU lacquer.

  • EPS20base
    % by weight: 2 %schedule

    Schedule 'Gloss finishing of MDF bathroom fronts (PE+PU)': two coats of EPS20 at 250 g/m² over PTS71 isolant, 30 min at 30–35 °C between coats, then 12 h at 20–25 °C.

    Schedule: after coat 2, 30 min at 30–35 °C + 12 h at 20–25 °C, sand P240–P320 / K150–K180, then PPL200 PU enamel + C200 70 % + S80 40 %, 72 h, polish.

  • EA1accelerator_adjust
    % by weight: 1–1.5 %dealer

    Need more pot life — typically in hot weather, 25–35 °C: drop EA1 to 1.5–1 %, catalyse with EC1 at 2 %.

    Drying and time-to-sand get longer.

  • EA1accelerator_adjust
    % by weight: 3 %dealer

    Need a faster cure (dealer: 'to increase speed, raise EC1 to 3 %, or raise EC1 to 3 % and EA1 to 3 %'). First step is EC1 3 % with EA1 left at 2 %; EA1 3 % only together with EC1 3 %.

    Pot life drops sharply — mix small batches.

  • EC1Hardener
    % by weight: 2 %official% by volume: 2–3 %official

    Standard PE hardener; always used together with EA1.

    NEVER let EA1 and EC1 meet neat — each goes into the base separately.

  • EC2Hardener
    % by weight: 2 %official% by volume: 2–3 %official

    Slow hardener: extends pot life of the mix. Dealer specifically recommends it with the new EA1* on medium- and high-pressure rigs (airmix/airless).

    Sources: dealer EA1 page + 2025 catalog sidebar (EC2 = slow).

Percentages are per 100 parts of component A.

Characteristics

Chemistry
metal-salt (cobalt) accelerator for peroxide-cured unsaturated polyestercatalog
Reactivity
EA1* (new formula): higher reactivity, faster hardness build, full through-cure in thick films, no residual styrene odour, fuller film, earlier sanding, less shrinkagedealer
Pot life effect
EA1* shortens pot life of the catalysed mix by ~10–15 % vs the old EA1dealer
Pot life
20 min / 1.5 h (ETS20, ETL200); 20 min / 3 h (EPS20, EPS22)dealer
Drying · Touch-dry
40dealer
Drying · Sand or stack
12dealer
Drying · Conditions
20 °C

Application

Mixing component

Why ru
Дозировка, разбавитель и жизнеспособность — официальные/дилерские данные; порядок введения и отдельные мерные ёмкости — стандартная практика для ненасыщенного полиэфира (ускоритель и пероксид никогда не должны контактировать в неразбавленном виде). Рабочее окно ~20 мин взято по меньшему из двух дилерских значений жизнеспособности (20 мин / 1,5–3 ч) как консервативная оценка.

EA1 is never applied on its own. Order: stir the PE base, weigh in EA1 (2 % by weight), mix thoroughly; then add EC1 or EC2 (2 %), mix again; then thinner S10/S11 (EPS20: S10/S30; ETL200 also S31/S50) at 10–15 %. Only mix what you can spray in ~20 min at 20 °C. Separate measuring cups/syringes for EA1 and EC1. Note: the dealer now lists thinner S13 (10–15 % by weight / 15–20 % by volume) for ETS20/EPS20/EPS22 instead of the official S10/S11. EA1 has no spray settings of its own (tip/pressure) — take them from the PE base product (ETS20/ETS50/EPS20/ETL200 etc.). The official schedule sprays PE primer with a twin-intake airless rig. Usual PE practice: one pot holds base + EA1, the other base + EC1, mixed 1:1 at the gun so nothing gels in the hoses. For single-pot medium/high-pressure rigs the dealer advises the slow EC2.

Process and compatibility

Goes with
ETS20, EPS20, EPS22, ETL200, ETS50
Partners
EC1, EC2
Temperature and humidity
standard dose 2 % at 20 °C; hot weather 25–35 °C → EA1 down to 1.5–1 % with EC1 2 % (longer pot life); to speed up → EC1 3 %, or EC1 3 % + EA1 3 %dealer
Don'ts
  • Never mix EA1 directly with EC1/EC2 (or any peroxide) — violent reaction, possible fire
  • Don't go above 3 % — the mix gels in the cup and the film may crack
  • Don't use it in PU, acrylic or NC materials — PE only
  • Never pour leftover catalysed mix back into the can
Why ru
Несовместимость пероксида с кобальтом и последствия переускорения — стандартная техника безопасности и практика для ненасыщенных полиэфирных смол; 3 % — максимальная доза, упоминаемая в источниках Technocolor; EA1 указан только для ПЭ-продуктов.

Storage

Packaging
1 Ldealer
Storage temperature
+5…+25 °C, tightly closed original container, away from heat and well apart from peroxide hardeners EC1/EC2recommended

Safety: Flammable liquid (metal-salt solution in solvent — estimated; no SDS found). Store away from the peroxide hardeners EC1/EC2, wear gloves and goggles, wash skin with soap and water. Don't bin EA1 rags together with EC1 rags.

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
  • Official EA1 page exists but is empty (title/breadcrumb only) — no official properties or dose on it
  • Solids, density, viscosity and colour of EA1 not published
  • Exact metal / active content (cobalt %) not published
  • Shelf life and storage temperature not published
  • No Technocolor TDS or SDS PDF found for EA1 (web search budget exhausted this run; none in local sources)
  • Meaning of the two pot-life figures (20 min / 1.5 h, 20 min / 3 h) on partner products not explained
  • Why EA1 volume % differs by base (2 % ETS20/ETL200, 2.5 % EPS20, 3.3 % EPS22) at the same 2 % weight — not explained (would imply different base densities)
  • Volume % for the dealer's 1–1.5 % and 3 % adjustment doses not given
  • Whether old EA1 and new EA1* are sold under the same code / how to tell them apart not stated
  • Packaging sizes other than 1 L not confirmed
  • Thinner mismatch on partner products: official pages say S10/S11 (EPS20: S10/S30), dealer pages (2026-10) say S13 for ETS20/EPS20/EPS22
  • Dealer gives no default within the 1–1.5 % reduced EA1 range