Polyester Durable Flame Retardant

Polyester Durable Flame Retardant

Polyester is a synthetic fiber with the widest range of applications and the highest production. Polyester fibers are used in a large number of clothing, curtains, bedding, interior decoration and a variety of special materials. Due to their low limiting oxygen index (LOI), the potential fire hazards are becoming more and more prominent with the wide application of polyester fibers.

Alfa Chemistry provides polyester durable flame retardant, which is widely used for flame retardant finishing of pure polyester fabrics. Its quality index and application effect have reached the advanced level of similar products in the world.


AppearanceColorless or pale yellow liquid
SolubilityEasily soluble in cold water
Solid Content93±1%
StorageStored in cool, dry and ventilated warehouse, avoid direct sunlight


Polyester durable flame retardant provided by Alfa Chemistry mainly has the following advantages:

  • This product is used for pure polyester fabrics, which can achieve excellent flame retardant effect with low dosage.
  • It has good washing resistance and still maintains good flame retardant effect after 30 times of washing.
  • It has no effect on the strength and hand feeling of fabrics, and does not cause color changes.
  • It has low volatility, non-toxic, safe to use.

Usage and Dosage

1. Preprocessing

Due to the poor water absorption of polyester fabrics, it is best to carry out lye treatment before flame retardant finishing to improve the effect. It is recommended to treat in 20-30 g/L NaOH solution at 95-100 ℃ for 30-60 min.

2. Flame retardant finishing

The recommended concentration of polyester durable flame retardant is 150-180g/L, and the concentration of nonionic penetrant is 0.5-1g/L. The concentration of flame retardant is adjusted accordingly with the gram weight of the fabric and the liquid.

Choose Alfa Chemistry

Alfa Chemistry specializes in providing innovative and efficient flame retardants for various industries. We continue to innovate technology, improve product quality and optimize product mix so as to satisfy the latest market demand for flame retardant products. If you don't find the product you need, please feel free to contact us. We can also provide product customization according to your specific needs.

※ Please kindly note that our products and services are for research use only.