The compound is designed for restoring repair of the gear boxes, bearings, reducers and other units of transmissions and for wear protection. The gel forms a new cermet coating with unique properties on friction surfaces and restores geometry of the parts. Advantages restores and protects friction parts of transmissions against wear; eliminates scratches and bubbles on the work surfaces; restores geometry of the parts; optimizes frictional conformability of gears; decreases noise and vibration of the units by 10 times; increases accuracy of the gear-shift; improves synchromesh operation; contributes to reduction of fuel consumption (especially in all-wheel drive cars); maintains operation of the transmission units during 1000 km in case of oil leakage.