Nylon and other polyamides are highly versatile polymers, valued for their strength, flexibility, and resistance to abrasion. They find extensive use in applications ranging from textiles and automotive components to industrial parts and consumer goods. However, like many polymers, polyamides are susceptible to photodegradation when exposed to UV light, which can lead to significant aesthetic and mechanical deterioration over time. Ensuring their long-term durability, especially in outdoor or demanding environments, is a key challenge for manufacturers.
NINGBO INNO PHARMCHEM CO.,LTD. offers Sunovin 5591 HALS for PA6 and other polyamides, a specialized multifunction hindered amine light stabilizer designed to specifically address the UV stability needs of these materials. Sunovin 5591 works by continuously neutralizing free radicals that are generated when the polymer interacts with UV radiation. This mechanism, unlike simple UV absorption, allows the stabilizer to regenerate itself, providing persistent and long-lasting protection against photo-oxidation.
The application of Sunovin 5591 results in improved color retention, prevention of surface cracking, and maintenance of critical mechanical properties for polyamide-based products. This means that nylon fibers retain their strength and vibrant colors, and polyamide molded articles withstand the rigors of outdoor exposure without becoming brittle or chalky. Our solution ensures that your products retain their value and performance throughout their intended lifespan.
As a dedicated manufacturer and supplier, NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality solutions for polyamide photo-oxidation protection. If you are looking to enhance the durability of your nylon or polyamide products, you can buy Sunovin 5591 from us with confidence in its performance and consistent supply. For effective PA6 UV degradation prevention, Sunovin 5591 offers a robust and reliable solution, underpinning the integrity and longevity of your polyamide innovations.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.