EFKA® RM 1920 is a particularly finely ground additive used to impart a thixotropic effect to paints, printing inks and other coatings.

The incorporation of EFKA RM 1920 ensures a strong thixotropic effect in non-aqueous coatings. Sagging of thick films on vertical surfaces is effectively prevented whilst the working and flow properties are also generally improved. Pigment settling is also substantially reduced.

EFKA RM 1920 can be used in most non-aqueous coatings both with and without solvents. The lower the polarity of the coating, the better is its performance.

The main fields of application are primers, fillers and top coats based on:

• chlorinated rubber
• alkyd resins
• epoxy resins
• unsaturated polyester
• acrylates
• polyurethane
• epoxy esters
• PVC and PVC copolymers
• polyethylene chloride
• bitumen

Its use in zinc rich primers is also recommended to prevent the zinc from settling and to ensure good brushability.

Hydrogenated castor oil