Home - AB RUST® - AB RUST® CH4


Nouvel additif


AB RUST®CH4 is designed to offer a flash-rust inhibitor :

  • easy to use with the largest compatibility with the traditional binders used in water based coatings,
  • very efficient at low dosage (< 0.5% in acrylic based formulations), and usable everywhere in the world thanks to the listing of its components in the world chemical inventories.

AB RUST®CH4 is VOC* free.

Applications - Dosage

AB RUST®CH4 is mainly recommended for:

  • flash-rust protection of water based anticorrosive primers, paints and varnishes based on acrylic, styrene-acrylic, alkyd, epoxy, polyurethane dispersions or emulsions
  • in-can protection for metal packaging filled with above products

AB RUST®CH4 added in post-addition is the simplest way of introduction. The use levels are:

  • typically, from 0.3 to 1% based on the total weight

There is no advantage to use higher levels. On the contrary, a too high dosage can increase the water sensitivity of the dry film.


Aspect: yellow liquid
Density: 1.06 – 1.12 at 20°C
pH: 7.5 – 8.5 at 20°C
Solubility: Water soluble in all proportions

Storage - Shelf-life

AB RUST®CH4 is able to resist at temperature below 0°C.
The solidification point is around -10°C, with a complete return to the liquid state when the temperature increases.
It is recommended to use AB RUST®CH4 within two years following its manufacture (see the expiration date on the label).


AB RUST®CH4 is classified in category 4 «Harmful if swallowed», and in category 2 «Irritating to eyes». For further information, please consult the MSDS.

Regulatory information

AB RUST®CH4 components are registered in the following inventories:

  • EINECS (Europe),
  • TSCA (USA),
  • DSL (Canada),
  • INSQ (Mexico),
  • AICS (Australia),
  • NZIoC (New Zealand),
  • IECS(China),
  • KECI (South Korea),
  • ISHL/ENCS (Japan),
  • PICCS (Philippines),
  • TCSI (Taiwan),
  • TEC (Thailand).


AB RUST®CH4 is active on steels.


Polyethylene pails of 20 kg and 30 kg net
Polyethylene drums of 225 kg net
Polyethylene IBC of 1100 kg net
Non-returnable packages.

*VOC: volatile organic compounds defined by the Directive 2004/42/EC