How to deal with silicone masterbatch color differences ?
silicone masterbatch color differences Causes:
- Inconsistent batch quality, poor dispersion, or large particle size of color masterbatch
- Insufficient mixing time / speed, inaccurate manual weighing
- Unstable curing temperature or time; discoloration during post-curing
- Variation in raw silicone material, product thickness, or mold surface
silicone masterbatch color differences Solutions:
- Use color masterbatch with particle size ≤20μm and ΔE<1.0
- Solid silicone: pre-disperse and remix for 15–20 minutes
- LSR: use static mixer and automatic dosing system (±0.5%)
- Control mold temperature at 160–180℃ (±2℃); post-cure ≤2h at 200℃
- Fix silicone material, mold, and process; use spectrometer for color control
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- Hi, Winstar Silicone company, we are interested in your product silicone color masterbatch, could you please offer some free samples to us？ Our company address: ***LA,USA
- Hello Winstar, our product is compression molding product,could you advise which peroxide curing agent to use ?
- Hi friend, we have some problem in silicone to PVC bonding, that bonding strength is not well at all, how to improve it please ?
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