Download PDF CrownCrete U™ SC (Skim Coat) Product No. 810 is a 3-part urethane polymer concrete coating flooring product. This product is easily applied with squeegees, brushes, or rollers depending on the desired look. CrownCrete U SC is a heavy duty pigmented coating typically applied 8 to 16 mils thick depending on the design requirements. It is an all-purpose product designed to be used as a primer, mid-coat, topcoat or seal coat for pigmented broadcast systems. It can also be used for patching and coving when mixed with suitable aggregates.