Nylon and polyester are both synthetic fabrics, but nylon production is more expensive, which results in a higher price for the consumer. Nylon also tends to be more durable and weather-resistant, which is why it is more likely to be used in outdoor apparel or gear. Both fabrics are flame retardant, but nylon is stronger, while polyester is more heat-resistant.
Nylon is exceptionally strong, even stronger than polyester.
Nylon and polyester are both abrasion resistant and resistant to damage from most chemicals. Nylon is also resistant to oil.
Both are flammable — nylon melts then burns rapidly; polyester has a higher flammability temperature, but melts and burns at the same time.
They also tend to be wrinkle-resistant, polyester more so. It doesn't stretch of shrink, and is a crisp, resilient fabric whether wet or dry.
Both nylon and polyester have a relatively low moisture absorbency, though nylon's is lower.
Nylon is well-suited for umbrellas.
Both nylon and polyester are used in a wide variety of items, from apparel, to home furnishing, to consumer electronics, and much more.
Polyester is more widely used in apparel, found in almost every form of clothing. Typically nylon is only used for blouses, dresses, foundation garments, hosiery, lingerie,tights, underwear, raincoats, ski apparel, windbreakers, swimwear and cycle wear.
Nylon tights (left) and polyester sarees (right).
Polyester vs Nylon Carpets
In the home, both nylon and polyester can be used for carpets, curtains, draperies, bedspreads and upholstery. Polyester is also used for sheets, pillow cases and wall coverings. The video below talks about nylon vs polyester carpets: