PORTAFILL® A is produced from carefully selected synthetic aluminium hydroxide (ATH). The standardised quality of PORTAFILL® A is guaranteed by means of an ISO 9001 certified quality management plan. The chemical composition of raw material and product is closely monitored and particle size kept within a narrow variation.

PORTAFILL® A micronized functional fillers are used in thermosetting powder coatings as an alternative to barium sulfate, when the high density is a limitation. In addition, PORTAFILL® A fillers are less prone to the phenomena known as ‘water spotting' in comparison to barium sulfate. The most important characteristics of PORTAFILL® A are:

• very good chemical inertness (outdoor and chemical applications)

• high purity

• high brightness

PORTAFILL® A 10 is successfully used as an alternative for fine barium sulfate in high gloss applications. PORTAFILL® A 40 is an effective matting filler for low thickness powder coatings.