Ivan printing material Co. Ltd   

And photosensitizer the deployment and operation: first use disposable cups added a small amount of warm water and the photosensitizer transferred into a uniform, cup bottom no precipitation so far, photosensitizer and mix thoroughly into the photoptic gum, with 3 - 4 chopsticks in a clockwise stirring about mixing 15 - 20 minutes, although after the placement of the bubble disappear completely can be used later. Second, the flu photoresist: URI photoresist must be carried out in a dark room. First of all, the sensitive glue into the sizing, bottom-up smooth sizing and normal positive will than negative one more time, (4 times in the positive and negative on 3 times)