Why blue , yellow, orange epdm granules must used the aliphatic pu binder? Blue, yellow, orange EPDM granules must use an aliphatic PU binder mainly because of color stability and UV resistance—this is critical for maintaining appearance and performance over time.
Here’s the breakdown in practical terms: 1. Prevents Yellowing (Most Important)
Aliphatic PU is non-yellowing
Aromatic PU (cheaper option) turns yellow when exposed to sunlight Blue is a very sensitive color—even slight yellowing makes it look:
Greenish
Dirty or faded
So if you used aromatic PU on blue EPDM:
The surface quickly loses its bright blue look
Customers will see discoloration within months
☀️ 2. Superior UV Resistance
Aliphatic PU has excellent UV stability
It resists:
Sunlight degradation
Chalkiness (powdery surface)
Color fading
This is essential for:
Outdoor tracks
Playgrounds
Sports courts 3. Better Long-Term Durability
Compared to aromatic PU, aliphatic PU:
Maintains elasticity longer
Keeps surface smooth and glossy
Reduces cracking and brittleness over time 4. Industry Standard for Light Colors
Blue, green, red, yellow EPDM → must use aliphatic PU
Black EPDM → can use aromatic PU (because discoloration is not visible) www.jiadongworld.com Jiadong is the leading manufacturer of vibrant color EPDM granules, aliphatic pu binder, aromatic pu binder for safety fall height playground surfaces. Safety is the first for the playground flooring, while the color is also very important it decides if the playground surfaces flooring is welcome or not. #epdm granules, #playground surfaces, #playground flooring, #aliphatic pu binder, #aromatic pu binder
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