Advantages of ASA Weather-Resistant and UV-Resistant Properties

ASA possesses an exceptionally strong resistance to ultraviolet (UV) radiation, making it suitable for outdoor injection-molded products exposed to direct sunlight, ensuring resistance against UV fading and yellowing.

Four Key Advantages of ASA:

• Mechanical and Physical Properties: ASA exhibits excellent mechanical and physical performance.
• Weather Resistance: ASA demonstrates strong resistance to weathering.
• High-Temperature Resistance: ASA performs well under high-temperature conditions.
• Antistatic Properties: ASA acts as an antistatic material, reducing the accumulation of dust on the surface.

Polymeric materials with double bonds are susceptible to the opening of these bonds by the intense ultraviolet radiation from sunlight, leading to a decline in the aging resistance of the polymer.

ASA addresses this issue by substituting unsaturated double bonds in the butadiene rubber of ABS with acrylic acid rubber that lacks such bonds. This substitution not only resists degradation, aging, and fading caused by UV exposure but also provides robust protection against decomposition or discoloration resulting from high temperatures during oxidative processing in the atmosphere. Consequently, this significantly enhances the material’s resistance to aging and weathering.

According to test results, ASA exhibits aging resistance more than ten times that of ABS.