Exhaust valves and seats can show signs of wear and blow-by due to hot corrosion caused within long running hours. This improper sealing causing the blow-by can be caused due to wear happening on exhaust valve disc, exhaust valve seat or exhaust valve stem. Matra offers reconditioning services for all these with in house solutions such as Inconel and Stellite reconditioning of exhaust valve spindle and seat, thermal spraying and grinding of exhaust valve spindle stems.