This tool should be used as a guide only. Lustre Boot Top Waterline may not be an exact match for Boot-Topping by but we have given the closest match we can. Lustre Boot Top Waterline should do the same job and have similar properties but you should always read the technical data sheets for both Lustre Boot Top Waterline and Boot-Topping to be sure. Please see any notes to see any major differences and call us on 01285 862132 if you have any specific questions.