A two-component polyurethane clear coat kit system consisting of: a binder component having a solids content of 42 to 50 wt. The sealing assembly includes one or more elastomeric sealing rings having a circumferential groove formed in a downhole face. In some embodiments, the LDLC matrix may not include a matrix of less than a length of six cycles. The composite code is an optimal dither code, having an optimal autocorrelation properties, by generating a dither pattern in which phase vectors for the constituent code are not repeated within the code.