Special lacquers for crackle finishes


RAPID undercoat 1

for crackle finishes (Step 1)


Base coat for crackle finishes in combination with crackle varnish 2 (50075). Transparent; slightly yellow; fast-drying. Dilutable with turpentine substitute 50019, but dries rather quickly to a turpentine substitute-resistant film.

Thinner: Turpentine substitute (50019)




    • Shake well before use.
    • RAPID undercoat 1 is ready to use, but can be diluted with e.g. turpentine substitute 50019.
    • The product dries up quickly to a film which is insoluble in oil of turpentine 50024 / 50102 or turpentine substitute 50019.
    • Please clean tools like brushes or palettes as soon as possible with e.g. oil of turpentine 50024 / 50102, turpentine substitute 50019 or brush cleaner 50051 / 50052.
    • Close immediately after use.
    • Store in a cool and dry place.
    • Individual pre-tests are required.


    Sizes: 60 ml and 200 ml

    Contains: alkyd resin, mineral spirit, 2-butanonoxime.

    GHS Icon: Reizend GHS Icon: Flamme

    Signal word: Warning

    Hazard statements

    Flammable liquid and vapour. May cause drowsiness or dizziness.

    Safety precautions

    Keep out of reach of children. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Take action to prevent static discharges. Do not breathe vapours. Wear protective gloves and protective clothing. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].

    Other hazards

    Repeated exposure may cause skin dryness or cracking. Contains phthalic anhydride. May produce an allergic reaction.


    • Apply RAPID undercoat 1 to the support with a wide paintbrush and, depending on the support and ambient temperature, allow to dry for approx. 50 – 90 minutes.
    • Highly absorbent supports should be precoated with RAPID undercoat 1 which has been 20 – 30 % thinned with turpentine substitute.
    • Then apply crackle varnish 2 to the still slightly tacky undercoat.
    • The cracks appear during the drying process that now takes several hours. After one more day of resting, the objects are coloured using Schmincke oil colours, e.g. MUSSINI® Vandyke brown 10667.
    • The water-soluble crackle varnish 2 is carefully removed after another 24 hours using a slightly damp sponge.
    • If necessary, another finishing coat can be applied with RAPID undercoat 1.
    • Please ask for detailed product information