The automotive industry constantly demands materials that can withstand harsh environmental conditions, especially prolonged exposure to UV radiation. Plastic components, vital for both interior and exterior vehicle parts, are particularly susceptible to photodegradation, leading to discoloration, cracking, and loss of mechanical strength. Addressing this challenge requires advanced stabilization solutions.
NINGBO INNO PHARMCHEM CO.,LTD. offers Sunovin 5591, a cutting-edge hindered amine light stabilizer (HALS) specifically formulated to provide superior protection for a wide range of automotive plastics. As a multifunction light stabilizer PA66 and other polyamides, Sunovin 5591 goes beyond simple UV absorption. Instead, it operates by continuously scavenging free radicals generated during photo-oxidation, a key mechanism that preserves the polymer's integrity and appearance over time. This makes it an ideal polyamide UV stabilization solution.
For automotive exterior plastic parts, where durability and aesthetic retention are paramount, Sunovin 5591 provides significant advantages. Its ability to inhibit degradation processes ensures components like bumpers, trim, and mirror housings maintain their original color and structural integrity, even after years of sun exposure. The robust protection offered by Sunovin 5591 means fewer warranty claims and higher customer satisfaction for vehicle manufacturers.
We understand the critical need for reliable supplies in this demanding sector. Therefore, NINGBO INNO PHARMCHEM CO.,LTD. is a trusted HALS light stabilizer supplier, ensuring consistent quality and availability. If you are looking to purchase high-quality light stabilizers, you can buy Sunovin 5591 directly from us. Our expertise as a manufacturer ensures that you receive a product engineered for high performance. Incorporating Sunovin 5591 means extending the lifespan of automotive components, reducing material fatigue, and ultimately contributing to safer, more aesthetically pleasing vehicles. Its effectiveness for hindered amine light stabilizer polyamide exterior applications is particularly notable, demonstrating its versatile utility across the automotive value chain.
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.