The squeegee blade is part of the squeegee that actually does the printing. Blades were once made of rubber or neoprene (synthetic rubber), but today most blades are made of polyurethane, a flexible, highly dense plastic. Polyurethane is easily formed yet resistant to most solvents, and it can be colored, which allows manufacturers to color-code their blades according to their durometer, or hardness. Durometer, a term used to describe the hardness of a rubbery-type material, is measured according to a standard known as the Shore A scale. Occasionally you may hear someone use the word Shore to describe the hardness of the blade rather than durometer. Both really mean the same thing.
There are many different types of squeegee blades on the market. They differ from one another in three important qualities:
Virtually all squeegee blades used in screenprinting today fall somewhere between 50 and 90 durometers. The durometer of a blade can make a big difference in the prints it produces. Softer blades (50-60 durometers) will tend to lay down much more ink than harder blades. They also do a better job of printing on rough surfaces like fabrics. The mesh in your screen is another factor that can determine your choice of a squeegee blade. As a rule, the coarser the mesh the lower the durometer of the blade you'll want to use. For printing most sign materials, which tend to be comparatively smooth-surfaced and not very absorbent, you would do well to select a squeegee blade in the middle range, somewhere around 70 to 80 durometers. The harder the squeegee the lower the ink deposit. The very hardest blades (90 or more durometers) are used for printing fine detail work and halftones. They are also used for UV printing where a light ink deposit is preferred.
- 1. Durometer
2. Shape or profile
I think the most common, for general use, with a 110 mesh would be a 70 shore squeegeeTime to order new Squeegees. I never new their was a difference as three came with my package and I just use which ever one is clean at the time. So from what you posted, if I am using 110 mesh printing on fabric I should get squeegees between 50 to 60 durometers??? Is this correct?