Ascotran® AL4 is a convenient liquid antiflash-rust additive formulated for waterborne coatings. This ready-to-use solution acts as a hydrophobic agent, safeguarding nearly dry films even in harsh ambient humidity conditions. Ascotran® AL4 serves as a corrosion inhibitor, ensuring protection for metal packaging. Ideal for various coating applications, it offers reliable defense against rust and corrosion, preserving the integrity of metal surfaces.

Chemical Family: Azole & Derivatives, Organic Salts

Labeling Claims: VOC-free

Compatible Polymers & Resins: Acrylics, Alkyds, Epoxies (EP), Polyurethanes (PU), Styrene Acrylics

Features: Corrosion Resistance, Water Resistance

End Uses: 2K (2 component) Coating, Glue, Mastics, Stains, Varnishes, Waterborne Coating

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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Adhesive & Sealant End Applications
Coating End Applications
Use Level
0.3 - 1.5 %
Dosage Information
  • Can be added at any manufacturing step.
  • Can be post-added.
  • In 2K systems: should be added into the resin part in most cases (to be checked with preliminary testing).
  • Indicative use dosages (% of total coating weight) : 0.3 to 0.6% on degreased steel, not rusted, sand-blasted or not. 0.5 to 1.5% on cast-iron or rusted substrates. 0.3 to 1.5% for packaging protection.
  • Above dosages can be increased when the coating is applied in severe conditions of ambient humidity.


Physical Form
Pale yellow limpid liquid.
Miscible in
Ethanol, Ethylene glycol, Isopropanol, Water (up to 10%), Butylglycol, Dipropylene Glycol Monomethyl Ether (up to 5%)
Immiscible In
Methyl Ethyl Ketone
Typical Properties
ValueUnitsTest Method / Conditions
Volatile Organic Compound Content*0%-
Density (at 20°C)1.08 - 1.12--
pH Pure (at 20°C)7.8 - 8.4
Viscosity (at 20°C)max. 30 cPs-
Freezing Pointmax. 5°C-

*according to directive 2004-42-CE

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Packaging & Availability

Packaging Type
Packaging Information
  • Plastic pail of 30kg net.
  • Metal drum of 200kg net.
  • IBC of 1000 kg net.
Transport Information
  • Weight and packaging size (off-pallet) :
  • Pail : 1,5kg - Ø30, H50
  • Drum : 15kg - Ø60, H90
  • IBC : 70kg - L120, l100, H120

Storage & Handling

Shelf Life
2 years
Storage and Shelf Life Information
  • Ideal temperature conditions: 5 to 30°C.
  • Exposure : avoid direct exposure to sunlight.
  • Expiration : 2 years in its original sealed drum, in the storage conditions described above.
  • With time, the color of the product may turn darker, but it does not modify its properties.