Flat profile is best for jobs where the speed is not constant, whilst dynamic profile will pass the control over the release to the printer. What is the difference between Rubber-based adhesive and acrylic adhesive?
Nirotek’s Rubber based adhesives are hot melts whereas the Acrylics are water-based. Some of the differences are because of the application technology and some are due to the nature of different substance. Rubber-based HM adhesives will perform better on damp surfaces by repelling the water – giving more room for the adhesive to cling onto the substrate. The acrylics, due to their emulsion back nature, are well packed with surfacting agents and consequently have a low surface energy which gives good wetability by the water droplets, while leaving no room for initial adhesion with resulting adhesion failure. Better low temperature behaviour along with better adhesion to polyolefins, such as stretch cling films and PE, are the advantages of rubber-based adhesives. Acrylics are UV resistant and will perform better in high temperatures. In some cases adhesion is actually enhanced by elevated temperatures – even over 100?C. Durability and high temperature effectiveness are the Acrylics majo
