The EXOCOAT product range is based on nanotechnology and focusses on three main technology platforms being Sol-gel-technology, Photocatalytic Titanium Dioxide and Preceramic polymers
Sol-gel Technology
Nanomaterials for smart coatings
Sol-gel materials include a wide range of inorganic and hybrid organic/inorganic compounds which are prepared by a common synthesis method described by sol-gel-technology. They are made from metal alkoxide precursors that undergo transformation from singular molecules through sols, which progress to gels and then to strong solid materials. Since the precursors are liquid in nature, sol-gels are ideal materials to be used in coatings for standard, and especially complex shapes. An essential element of the sol-gel process is the hydrolysis and consequent polymerization of the metal-oxide backbone, which is of key importance to form coatings. In fact, due to the large versatility in choice of precursors, sol-gel-technology may be utilized to formulate coatings with specific functionalities such as easy-to-clean, superhydrophobic, superhydrophilic or self-cleaning; either as stand-alone attributes, or as combinations.
Photocatalytic TiO2
Self-cleaning materials
Titanium dioxide exist in basically 2 forms: rutile and anatase. while rutile titanium dioxide is a wellknown white pigment, the anatase form has the interesting function of being photocatalytically active. This means that when light shines on a coating of anatase titanium dioxide it creates radicals from water and oxygen in the air.
The EXOCOAT technology stands outs as the titaniumdioxide is synthesized from sol-gel precursors which results in particles that are extremely small, called nanoparticles. This type of nano titanium dioxide has extremely high light sensitivity. The photocatalytic effect results in effective free-radical formation which breaks down organic matter such as dirt and soil. Airborne particles such as volatile organic and nitrous oxide compounds (VOCs, NOx) are also eradicated. Moreover nanotitanium dioxide acts as antimicrobial via this photocatalytic effect.
Preceramic polymers
Superhard finishes
Ceramic finishes are preferred in the many industries as they aggressively improve scratch resistance due to their extreme hardness. Some ceramic finishes may deliver 8-9H pencil hardness and resist up to 20N load in scratch resistance tests.
Preceramic polymers convert to a ceramic layer through reaction with moisture from the air. Moisture from the air hydrolyses the polymer which then internally reacts to form a metal oxide ceramic layer. While being covalently bound to the surface these ceramic layers account for very durable and resistant films.
With specific control over the precursors functional properties as easy to clean, reduced dirt pickup and anticorrosion can be attained
Technical Documentation
Brochures
Technical documents
EXOCOAT Brochure
Overview of products and functions
Superhydrophobic EXOCOAT SH
Durable water and dirt repellence on porous surfaces
Hydrophobic Coating for Glass
Durable, transparent, very hydrophobic EXOCOAT Clearview
EXOCOAT 143 - Anti-graffiti
Tag free surfaces by unrivalled non-stick properties
Allround protection Yacht and Car
Features ceramic EXOCOAT 143 coating
Keeping the Surface Clean
EXOCOAT 151A self-cleaning mode of action
Sol-gel based Functional Coatings
Functional coatings from sol-gel and preceramic functional precursors
Technology behind thin layer protective finishes
Overview of different technologies used by industry
Cr(VI) replacing Conversion Coatings
Sol-gel and preceramic products to prevent aluminium corrosion (AL2024, AL7075)