This tool should be used as a guide only. Hardtop Flexi may not be an exact match for Sigmadur 580 by but we have given the closest match we can. Hardtop Flexi should do the same job and have similar properties but you should always read the technical data sheets for both Hardtop Flexi and Sigmadur 580 to be sure. Please see any notes to see any major differences and call us on 01285 862132 if you have any specific questions.
