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EC1

EC1 Polyester catalyst (standard)

Standard catalyst (initiator) for Technocolor polyester primers and lacquers. Added at 2 % by weight together with 2 % EA1 accelerator. Slow version is EC2.

  • Curing PE primers EPS20, EPS22, ETS20, ETS50
  • Curing PE high-gloss lacquer ETL200

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Mixing matrix

  • EPS20base
    % by weight: 2 %official% by volume: 3 %official

    Standard catalysation of EPS20: 2 % EC1 + 2 % EA1.

    Catalog 2025-26: EC1/EC2 2 %, EA1 2 %.

  • EPS22base
    % by weight: 2 %official% by volume: 2.5 %official

    Standard catalysation of EPS22: 2 % EC1 + 2 % EA1.

    Catalog 2025-26: EC1/EC2 2 %, EA1 2 %.

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

    Standard catalysation of ETS20: 2 % EC1 + 2 % EA1.

    Catalog 2025-26: EC1/EC2 2 %, EA1 2 %.

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

    Standard catalysation of ETL200: 2 % EC1 + 2 % EA1.

    Catalog 2025-26: EC1/EC2 2 %, EA1 2 %.

  • EPS20 / EPS22 / ETS20 / ETL200base
    % by weight: 2–3 %dealer

    Need it faster (cold shop, quick sanding): EC1 up to 3 %, or EC1 up to 3 % plus EA1 up to 3 %.

    Dealer note on the EPS20/EPS22/ETS20/ETL200 pages. Pot life drops - mix small batches.

  • EA1Accelerator
    % by weight: 1–2 %dealer

    Always paired with EC1 (2 %). In hot weather 25-35 °C cut EA1 to 1.5-1 % and keep EC1 at 2 %.

    Cutting EA1 to 1.5-1 % in heat is from the dealer EC1 page. Separately, from the dealer EA1 page: the new EA1* cuts pot life by 10-15 %; for medium/high-pressure systems the dealer recommends the slow EC2 instead.

  • EA1Accelerator
    % by weight: 2–3 %dealer

    Speed up: EA1 up to 3 % together with EC1 up to 3 %.

  • EC2Hardener
    % by weight: 2 %dealer

    Slow alternative to EC1: hot weather, medium/high-pressure systems (airmix/airless).

    Catalog: EC2 is the slow one, longer pot life. Dealer (EA1 page): EC2 for medium/high-pressure systems. EC2 solids 90 % vs 100 % for EC1. Official EPS20/EPS22/ETS20/ETL200 pages dose EC1 and EC2 the same (2 % by weight).

  • EPS20base
    % by weight: 2 %schedule

    Mix as written in the finishing schedule.

    Apply 250 g/m², 2 priming passes. Dry 30-35 °C 30 min after each, then 12 h at 20-25 °C, sand P240/P280/P320.

  • ETS50base
    % by weight: 2 %schedule

    Mix as written in the finishing schedule.

    Apply 250 g/m², 2 priming passes (one coat each). Booth dry 20 °C 30-40 min after coat 1, 20 °C 8-12 h after coat 2, then sand P360/P400. Airless with 2 intakes.

Percentages are per 100 parts of component A.

Characteristics

Solids
100 ± 1 %dealer
Dosage % by weight
2 %dealer
Chemistry
organic peroxide (likely MEKP-type initiator)recommended
Pot life · By base · EPS20
20 мин / 3 чdealer
Pot life · By base · EPS22
20 мин / 3 чdealer
Pot life · By base · ETS20
20 мин / 1,5 чdealer
Pot life · By base · ETL200
20 мин / 1,5 чdealer
Drying · Touch-dry
40dealer
Drying · Sand or stack
12dealer
Drying · Conditions
20 °C
Speed
standard (EC2 = slow)catalog

Application

Other

Never applied on its own - mix component only. Order: base + EA1, stir well, then EC1, stir again, then thin with S10/S11. Never let EC1 and EA1 touch neat.

Airless

Schedule (ETS50): "Airless with 2 intakes". The schedule does not say how components are split; typically one intake carries base + accelerator and the other base + catalyst (or catalyst), meeting at the gun.

HVLP

The catalog specifies air spray (conventional/HVLP gun). Gun set-up follows the base (see EPS20/ETS20/ETL200 records). Short gel time (~20 min) - mix only 15-20 minutes' worth and flush the gun immediately.

Process and compatibility

Temperature and humidity
20 °C reference; at 25-35 °C cut EA1 to 1-1.5 % (keep EC1 2 %) or switch to EC2dealer
Don'ts
  • Don't go above 3 % EC1
  • Never mix EC1 straight into EA1
  • Don't cap leftover catalysed mix - it heats up
  • Not for PU/acrylic - polyester only

Storage

Packaging
0,5 кг; 1 кгdealer
Storage temperature
cool, dark, below 25 °C, away from accelerators and heatrecommended

Safety: Organic peroxide (oxidiser): keep away from EA1 accelerator, acids, metals and heat. Don't mop spills with sawdust/rags - use sand or vermiculite. Corrosive to skin and eyes: nitrile gloves and goggles. Splash in eyes - rinse 15 min, see a doctor.

Used in finishing systems

Mixed into

EA1 / EC2 / EPS20 / EPS22 / ETL200 / ETS20 / ETS50 / LOB5

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
  • No official t-color.ru page
  • No TDS/SDS found (t-color.ru and lakokraska31 searches for EC1 returned nothing, 2026-10-05)
  • Active oxygen content / exact peroxide type
  • Density, viscosity, flash point
  • Pct by volume as a standalone figure (only per-base volumes from official pages: 2-3 %)
  • Shelf life and storage temperature
  • Pot life with EC1 at 3 %