1. Monomer Glue (+salt) The basic viscosity of the monomer colloids that can be gelled is not high, and most of the colloids are polyhydroxy polysaccharides (gelatin is protein glue). Therefore, the higher the molecular weight, the higher the viscosity, and generally the higher the strength. The water separation is more complicated, depending on the specific colloidal system. Generally, the production process and the ionic strength of the solution have a great influence (potassium, calcium, sodium, etc.). The following is my summary of some of the experiences, if I am wrong, please correct me. 2. Compound Glue Composite colloids are