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10in, No. 140 (106µm) Polyester Square is designed to fit non-metallic or brass two-part frames. Square cloth has a circle of tough, resilient material embedded in the mesh to act as a sealing gasket. Opening sizes are equivalent to ASTM E11 sizes but may not meet tolerance specifications.
The versatile polyester material is suitable for most applications because it resists abrasion, acids, and most alkalis up to a pH of 9-10 while maintaining strong wet stability.
Please note Polyester and Nylon mesh sizes ranging from No. 100 to No. 230 (150 to 63µm) do not require or come with a circular resilient material.
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