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HardenersHardener

PC60

PC60 Hardener for PU coatings

Aliphatic (isocyanate, part B) hardener with fairly high lightfastness and elasticity. The catalog files it under "yellowing-resistant hardeners for matt PU lacquers"; on the hardener chart it sits at the fast/hard end with ≈29 % solids. The standard hardener for the white PPL PU enamels and the PTL60 worktop lacquer.

  • Part B for matt PU lacquers
  • White and tinted PU enamels PPL10, PPL20, PPL50, PPL1, PPL RAL, PPL01
  • PTL60 worktop lacquer
  • Swap-in for PC20/PC25 on PTL20, PTL1, PPS50 where yellowing is not acceptable (pale timber, whites)

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Answers are based on the PC60 data and the products it mixes with.

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Mixing matrix

  • PPL10 MProduct
    % by weight: 40 % of Aofficial% by volume: 55 % of Aofficial

    Fast-dry PU enamel — PC60 is the only listed hardener.

  • PPL20 M / PPL20 UMProduct
    % by weight: 50 % of Aofficial% by volume: 70 % of Aofficial

    Universal white PU enamel, 20 and 10 gloss.

  • PPL20 SM / PPL20 GProduct
    % by weight: 50 %dealer% by volume: 60 %dealer

    PPL20 30 and 95 gloss (no official pages).

  • PPL20 DMProduct
    % by weight: 30 %dealer% by volume: 40 %dealer

    Deep-matt version — less hardener.

    Catalog p.9 prints «40* – 50 %», dealer says 30 %; go with the dealer 30 % until a TDS says otherwise.

  • PPL50 M / PPL50 SM / PPL50 SGProduct
    % by weight: 50 % of Acatalog% by volume: 60 %dealer

    Thixotropic white PU enamel for vertical work.

  • PPL1 MProduct
    % by weight: 50 % of Acatalog

    White PU converter for tinting enamels.

  • PPL R**** MProduct
    % by weight: 50 %dealer% by volume: 60 %dealer

    Stock-tinted PPL RAL enamels, 20 gloss.

    Official PPL R**** pages on t-color.ru carry no mixing table.

  • PPL R**** DMProduct
    % by weight: 30 %dealer% by volume: 40 %dealer

    Deep-matt PPL RAL (DM).

  • PPS50Product
    % by weight: 50 % of Aofficial% by volume: 70 % of Aofficial

    Thixotropic white PU primer — official page lists PC20/PC60; catalog and dealer list only PC20. Use PC60 when non-yellowing matters.

  • PPL01Product
    % by weight: 50 % of Acatalog% by volume: 70 %dealer

    Fire-retardant white PU enamel — PC20 or PC60.

  • PTL60 SMProduct
    % by weight: 50 % of Aofficial% by volume: 50 % of Aofficial

    PU lacquer for worktops and bar tops — PC60 only.

  • PTL20 M / PTL20 SM / PTL20 UM / PTL20 DMProduct
    % by weight: 50 % of Aofficial% by volume: 50 % of Aofficial

    Universal PU lacquer — PC60 instead of PC20/PC25 over pale timber and over white enamel.

    Officially PC60 is listed for M and SM (the official UM page lists only PC20). The dealer notes on all four variants (M/SM/UM/DM): "using PC60 instead of PC25 increases yellowing resistance".

  • PTL1 MProduct
    % by weight: 50 % of Aofficial% by volume: 50 % of Aofficial

    Clear PU tinting converter — PC25/PC20/PC60.

  • PTL1 UM / PTL1 DMProduct
    % by weight: 40–50 % of Acatalog

    Catalog lists only PC60 for PTL1; 40 % for the UM/DM variants.

Percentages are per 100 parts of component A.

Characteristics

Solids
29 ± 1 %dealer
Chemistry
aliphatic polyisocyanatedealer
Hardener class
yellowing-resistant, for matt PUcatalog
Speed and hardness
fast-hard end of chart (with PC25)catalog
Lightfastness
fairly high lightfastnessdealer
Elasticity
fairly elasticdealer
Density
≈1.0–1.15 g/cm³recommended
Pot life
3–4 hdealer
Drying · Conditions
20 °C
Moisture sensitivity
high — isocyanate reacts with water/air humidityrecommended

Application

Conventional spray

Nozzle
per base)recommended

Never sprayed on its own — nozzle and pressure follow the base (see the PPL10/PPL20/PTL60 etc. records). Part B only: weigh on scales, stir well, thin, strain, let it stand 5–10 min.

Process and compatibility

Mixing
Weigh per 100 parts part A; use volume only with the product-specific volume %.; Tinted batches: calculate hardener on converter + paste weight.; Don't overdose for speed — brittle film and yellowing; underdosing gives a soft, tacky film.; Never pour leftover mix back into the base can.recommended
Goes with
PPL10, PPL20, PPL50, PPL1, PPL RAL, PPL01, PPS50, PTL1, PTL20, PTL60
Temperature and humidity
15–25 °C, RH ≤ 70 %recommended
Don'ts
  • Don't use with ATL/APL acrylics (use AC40/AC41) or with PTL200/PPL200 high-gloss (AC200).
  • Don't leave the can open — moisture ruins it (goes cloudy, thickens, skins).
  • Don't use hardener that has thickened or turned cloudy.

Storage

Packaging
0.5 l,2.5 l,12.5 l,25 ldealer
Storage temperature
tightly closed, dryrecommended

Safety: Contains isocyanates and solvents: flammable; vapour and spray mist are harmful and can sensitise airways and skin. Use in an extracted booth with an A2P3 charcoal respirator or air-fed mask, nitrile gloves and goggles. Keep away from ignition sources.

Mixed into

C61 / PPL R**** DM / PPL R**** M / PPL R1013 DM / PPL R8022 M / PPL R9001 M / PPL R9003 DM / PPL R9003 M / PPL01 / PPL1 M / PPL10 M / PPL20 DM / PPL20 G / PPL20 M / PPL20 SM / PPL20 UM / PPL50 M / PPL50 SG / PPL50 SM / PPS01 / PPS50 / PTL01 / PTL1 DM / PTL1 M / PTL1 UM / PTL20 DM / PTL20 M / PTL20 SM / PTL20 UM / PTL60 SM / PTL61

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 product page
  • No Technocolor TDS/SDS PDF for PC60 found (web search budget exhausted this session; dealer probes of lakokraska31/woodonline returned nothing)
  • NCO content, viscosity, density (only derived ≈1.0), flash point not published
  • Shelf life (срок годности) not published
  • Catalog footnote «*» on PPL20/PTL1 «40* – 50 %» and PPL RAL «30* – 50 %» not explained; dealer gives 30 % for PPL20 DM and PPL R DM — conflicts with the catalog's 40* for PPL20 DM
  • PPL20 M volume %: official 70 vs dealer 60 (dealer UM page says 70); dealer also gives 60 vol % for PPL20 SM/G, PPL50, PPL R M
  • Not used in any of the 11 official finishing schedules; the PPU schedule pairs PPL20 with С20 (С61) instead
  • No volume % sourced for PPL1 M and PTL1 UM/DM