Soft PU Foam Material Testing Data
Low density / easy to occurs cleavage and produce the yellowing phenomenon by the ultraviolet light / it is obvious to produce the yellowing phenomenon which the non-adding anti-yellowing agent of soft foam after exposing to ultraviolet light / with the good anti-yellowing property after adding the product.
Description
Soft PU foam material
Low density / easy to occurs cleavage and produce the yellowing phenomenon by the ultraviolet light / it is obvious to produce the yellowing phenomenon which the non-adding anti-yellowing agent of soft foam after exposing to ultraviolet light / with the good anti-yellowing property after adding the product.
Variable fade testing laboratory
Sample Size: 200mm thick soft foam TDI Base
Test temperature: 50 ℃
Add amount: 2%, 3% GGK-690
Measurement Unit: yellowing index
Foam density: 0.03 ~ 0.05 g / cm3
Test time: 24hrs
The experimental results
Add 2%, 3% GGK-690 provides a soft PU foam material good light performance make foam yellowing change value to 15.2 and 10.79, representing 29.2 is better not to add foam.
