Note: When cutting vinyl or plastic type materials there is always some residue that will accumulate on the blade. One reason for this it is just the nature of the material and the other is from the blade speed. The speed of the blade will create heat and can melt the material. We sometimes recommend a slow speed motor when cutting material such as this. To help with this you can use a Teflon coated blade, which will help with residue buildup. It will not eliminate it but it will glide easier through the material. You can also use goo gone or acetone to clean the blade.