C81100 Pressure Seal C fold Form Pressure seal C fold blank form. The self mailer style requires pressure seal equipment for processing and folds / seals to become its own envelope. SKU: C81100 Prior Job# Special Instructions Logo & Options : $0 - Color Logo $68 - Black Logo $90 - Color Logo No Charge - 1 Color Logo No Charge - Black Logo QuantityPlease select options before adding to cart Add to Cart Add to Cart