14th December 2018

CORROSION INHIBITOR FOR METAL COMPOSITES

Composites are increasingly becoming a material commonly used in aerospace and other industries, due to properties like high strength and light weight. Some composite materials are joined with metals like aluminum, in joining zones between metallic frames and composite structures, and in the connecting regions of two composite structures using metallic screws and rivets. This dissimilar coupling of materials can develop galvanic corrosion issues due to the difference on electrode potentials. 

To prevent corrosion, some sections of the aircraft require a temporary protective coating commonly known as a Corrosion Inhibition Compound (CIC). Such coatings are applied to protect the structure from corrosion by penetrating into joints and gaps, displacing water and forming an anti-corrosive barrier that delivers a continuous water-repellent effect. They can be easily removed, with the aid of a cleaning agent, and be repaired and replaced as part of the maintenance process of the aircraft.

Socomore has developed a temporary, yet innovative water-borne corrosion inhibitor compound, SOCOPAC WBP, with short drying time (30 minutes), and the company claims, outstanding anti-corrosion properties. This new technology is fully compatible with metal and composites substrates, has good adhesion under severe environmental conditions (high humidity and temperature), and reportedly delivers excellent water-displacing abilities and mechanical properties.

It emits <0.5 percent VOCs, and offers 3000 hours SST at 10 umdft dry film thickness. It also features multi-substrate adhesion and a high penetration level.

www.socomore-na.com