This tool should be used as a guide only. Seaforce 90 may not be an exact match for Hempel's Antifouling Globic NCT 8190N by but we have given the closest match we can. Seaforce 90 should do the same job and have similar properties but you should always read the technical data sheets for both Seaforce 90 and Hempel's Antifouling Globic NCT 8190N to be sure. Please see any notes to see any major differences and call us on 01285 862132 if you have any specific questions.