Leveling Agents

Introduction

ADDSiL™ 8323 is an aralkyl-modified polymethylalkylsiloxane, it is for solvent-borne coating systems with a slight reduction of surface tension and slight increase of surface slip. Thermostable up to 250°C. It can provide good leveling with defoaming properties.

Effects

Physical Properties

Benefits

• Light reduction of surface tension.

• Slight increase of surface slip.

• Good leveling.

• Good defoaming.

• Thermostable.

Applications

• Solvent-borne coatings.

ADDSiL™ 8323 provides a slight reduction of the surface tension of coating systems.

ADDSiL™ 8323 is a silicone leveling additive which has a defoaming effect/does not stabilize or only slightly stabilizes the foam depending on the polarity of the coating system.

ADDSiL™ 8323 is thermostable up to 250°C and does not negatively impact the intercoat adhesion.

In matt coatings ADDSiL™ 8323 is used to orientate the matting agent.

In wood and furniture coatings, ADDSiL™ 8323 is used to orient the flatting agent in flat topcoats and in multi-coat systems. Even in difficult to flat high-solids coating systems,such as polyurethane, acid curing and unsaturated polyester coatings, its usage does not lead to shining up. In addition, optimal orientation of the flatting agent is achieved.

In flow coatings, ADDSiL™ 8323 stabilizes the flow curtain, and in metallic coatings it ensures consistent orientation of the aluminum pigments.

ADDSiL™ 8323 can prevent Bénard cell formation.

ADDSiL™ 8323 can increase the smoothness of the surface, therfore it improves the scratch resistance and abrasion resistance.