BARRISURF™ - A new concept for barrier coatings

Imerys has developed new barrier kaolins as part of the BARRISURF™ product line. These hyper-platy, nano-dimensional thickness crystals create a tortuous coating structure that inherently resists penetration.

With the rising cost of polymers, incorporating Imerys BARRISURF™ kaolins in a formulation is a cost effective route to deliver superior barrier performance.

Scanning Electron Micrograph showing the platy structure

Electron Micrograph images of BARRISURF™ hyper-platy kaolin

The increased focus on recycling and sustainable packaging is driving the trend for water-based
barrier coatings to replace fluorocarbon and extruded polymer barrier coatings. Platy kaolins
incorporated with appropriate polymers can provide effective barrier performance against
water, gases and grease. The use of these platy kaolins improve the barrier performance above
and beyond typical latex coatings.

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