This tool should be used as a guide only. Pilot II may not be an exact match for Hempel's BT Coating 5118 by but we have given the closest match we can. Pilot II should do the same job and have similar properties but you should always read the technical data sheets for both Pilot II and Hempel's BT Coating 5118 to be sure. Please see any notes to see any major differences and call us on 01285 862132 if you have any specific questions.