I prefer to request you some questions on this porcelain process (shofu vintage halo). I exploit to work with vita vm thirteen & ivoclar inline , but now i found a cheap set of halo on e-bay . Just before 2 hrs i make https://toothtechmart.com/product-details/shofu-products/vintage-halo-powder-50gm-200gm/shofu-vintage-halo-enamal-effect-200gm