Our technical person suggest replacing HIFULL HB-132 with HIFULL hydrophobic fumed silica HB-1300.
HIFULL HB-1300 is treated silica on the base of HIFULL HB-132. HB-1300 has high bulk density, low thickening effect, and high reinforcement. It’s a customized product for a silicone adhesive system.
HIFULL HB-1300 can be added by 50% to 60% in silicone adhesive, enabling its excellent strength with low thickening performance.
HIFULL HB-1300 perfectly solved their problem. It exhibits low viscosity even with a large added amount.