Synthetic Resin CA Cyclohexanone-formaldehyde Degussa Aminoplaste / Phenoplaste (UF, MUF) ADHESIVE Cyclohexanone formaldehyde condensation resin. Synthetic Resin is used in isocyanate-based reactive adhesives, in radiation-cured and water-clear adhesives. Cyclohexanone formaldehyde condensation resin. Used in isocyanate-based reactive adhesives, radiation-cured and water-clear adhesives.