Capeco

Biocides in Coatings

Capeco specializes in encapsulating biocides mainly for use in water-based paints for protection against mold and algae attacks. Many of the biocide-containing paints on the marked today are formulated by simply mixing the biocides directly into the paint. This results in rapid biocide depletion from the coating during rain (Picture 1). With the microencapsulation technology offered by Capeco the protection over time against mold and algae increases substantially (Picture 2).

Capeco collaborates with Marine Biofouling Research I Göteborg AB, a newly formed company with 25 scientist from Gothenburg University and Chalmers University of Technology, on encapsulation of biocides for use in marine paints for protection against biofouling. The collaboration is based on using microcapsulation as a means for optimizing biocide mixture efficacy.

Another application area of interest to Capeco is the protection of newly planted seedlings against forest pest insects. Out of 100 planted seedlings only 10-20 % survive into grown trees. The main reason for this low number is the attack from forest pest insects. One technology for protecting the stem of seedlings is by applying a protective coating containing a so-called semio-chemical compound. The mechanism by which the insects are diverted away from the seedling is based on chemical sensing through the air. Pest insects are thus diverted to other feeding grounds but not exposed to toxic substances. By microencapsulating the semio-chemical the life time of the coating is enhanced significantly which increases the chances for the seedling to survive.