Question: what are the chemical properties of polyester?
Answer: Tenacity: 5 – 7 gm/den.
Elongation at break: 15 – 30%
Elastic modulus: 90.
Elasticity: Good.
Moisture Regain (MR%): 0.40%
Specific Gravity: 1.38.
Melting point: 2500C.
Volumetric Swelling: None.