What to do with air bubbles in liquid silicone encapsulated products - a practical guide from "panic" to "stability"

What to do with air bubbles in liquid silicone encapsulated products

Bubbles in LSR products are a common challenge. When batch inspection reveals surface bubbles or internal pores, stay calm and investigate: Are bubbles on the surface or internal? Evenly distributed or concentrated? Batch or sporadic?

Common Causes: Insufficient vacuum degassing, poor mold venting, improper injection speed, moisture contamination.

Solutions: Improve vacuum degassing time, optimize mold venting design, adjust injection parameters, ensure proper material storage.