ASCOTRUST

ASCOTRUST® is a range of innovative, liquid-form, and tannic acid-free rust-converting additives for waterborne coatings, that is ecolabel compliant and VOC free.
ASCOTRUST® additives provide rust-converting properties to the coating layer and enable direct applications on rust or on poorly prepared substrates.
They ensure an efficient rust-blocking effect as soon as the paint is applied and form a passivation layer between the substrate and the coating layer ; this helps to maintain the coating’s anticorrosion performance, despite adverse substrate conditions.

They can be used inside both waterborne clear-coatings and paints. A waterborne anticorrosion clear-coating containing ASCOTRUST® can be used as a rust-converting pre-treatment which will perform better than tannic acid-based formulations or solventborne alkyd-based oils.
A waterborne metal paint based on ASCOTRUST® provides the following properties :
  • Prévention de la “migration” de la rouille à travers le film de peinture, même sur des surfaces fraîchement rouillées.
  • Preserving the coating’s color.
  • Avoiding strong de-rusting operations before painting, without loss of performance.
  • Not compromising the coating anticorrosion performance on non-rusted substrates.
In addition, ASCOTRUST® completes the action of the antiflash-rust additive on very reactive substrates.

PERFORMANCE

Waterborne clear-coating just applied on a rusted steel panel

ASCOTRUST® IN RUST-CONVERTING CLEAR-COATINGS

rusted Panel

pre-treat. with ASCOTRUST®
rusted Panel

Acid pre-treat. (TANNIC Acid)
rusted Panel

SB pre-treat. (ALKYD Oil)
SST (250h) on rusted steel panels
   

ASCOTRUST ® STOP RUST MIGRATION THROUGH THE PAINT LAYER

Paint without
ASCOTRUST®
Paint with
ASCOTRUST®

Paint with
TANNIC-based additive
WB paint applied on freshly rusted steel
with 1 layer (DFT 40 µm)

ASCOTRUST ® IN RUST-CONVERTING PRIMERS

Clean Panel
Metal Paint with
ASCOTRUST®
rusted Panel
Metal Paint without
ASCOTRUST®
rusted Panel

Metal Paint with
ASCOTRUST®
STT (300h) on steel panels
with 1 layer of metal paint (DFT 80 µm)

ASCOTRUST ® ENHANCE ANTIFLASH-RUST PROPERTIES

ASCOTRUST RANGE

Pigmented coatings Clear-coatings Specificities
ASCOTRUST®-X1 The most universal
ASCOTRUST®-X2 Good compatibility in clear-coatings
ASCOTRUST®-X3 High synergy with flash-rust inhibitors

ASCOTEC®
8 rue Jean Servanton - ZAC Scheurer Kestner - 42000 Saint-Etienne - FRANCE
Tél : +33(0)4 77 57 58 46 - Fax : +33(0)4 77 57 24 82

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