****Curing time suggestion for Black color: It is difficult for the light source to pass through deep colors like black, so you need to increase the exposure time, it is recommended to set the curing time for the first layer as 90s, then each layer followed as15s if you are printing in black color, which should bring you fair results. | 【Low Shrinkage and High Precision】ELEGOO photopolymer resin is specially designed for reducing volume shrinkage during the Photocuring process ,which ensures the high precision of the print model with smooth finish. | 【Fast Curing and Great Stability】ELEGOO 405nm Rapid Resin was designed to significantly reduce printing time with its excellent fluidity. Meanwhile its great stability and proper hardness guarantee a worry-free printing experience and successful printing. | 【Bright and Stunning Colors】: With high quality pigments and photo-initiators inside ELEGOO UV-Curing resin, the models printed with resin have a very pure and stunning color effect just like an artwork. | 【Wide Applications】Given the outstanding performances, ELEGOO standard resin is suitable for most DLP/LCD 3D printers. Works best with the LCD 3D Printers.