Shiyan Meinai blowing plastic products Co Ltd   

1: squeegee hardness is usually made by polyurethane, soft hardness measured by hardness of scraping gum. Squeegee hardness, size and shape determines the bending scraper, squeegee the flexibility and pressure. Hardness ranges from 55 degrees to 90 degrees (shore A). The hardness values measured with shore A hardness tester. 55A-65A is a low hard scraping gum, 66A-75A is hard, more than 75A is high and hard. High hardness of scraping gum is very favorable to the functions of the former three squeegee, will press in ink screen and transfers the ink from the fine mesh to the substrate, and keep the screen and substrate in line contact. High hardness of scraping gum only