The knife grade has a thicker consistency, similar to peanut butter. Flowing is more liquid and flows easily. The knife grade is good for filling holes over 1/8 of an inch. For smaller holes the flowing grade will penetrate better.
TIP Most polyesters have a limited shelf life. Do not keep any polyester for more than one year.
Article ID: 491
Created: January 20, 2022
Last Updated: January 20, 2022
Author: Pam Freitag
Online URL: https://sr-manual.com/kb/article/what-s-the-difference-between-a-knife-grade-and-a-flowing-grade-polyester-491.html