Скачать или смотреть Thickening & Thixotropy of different additions of HIFULL® fumed silica in epoxy adhesives | HIFULL

Is your epoxy adhesive too runny? Sagging on vertical surfaces? Our latest experiment reveals the key to perfect consistency: HIFULL® Fumed Silica.

We tested three different formulations:
◾ Sample 1: 1.6% Fumed Silica
◾ Sample 2: 3.0% Fumed Silica
◾ Sample 3: 4.6% Fumed Silica

The rotational rheometer data clearly shows:
✅ Viscosity increases significantly with higher silica content.
✅ Thixotropy is dramatically enhanced.

The result? Sample 3 (4.6%) showed the highest viscosity and thixotropic value, making it ideal for applications where sag resistance and structural stability are critical.

Key takeaway: Within a certain range, increasing the fumed silica content is an extremely effective method to boost the viscosity and thixotropy of epoxy adhesives.

Check out the video to see the rheology data and the visual difference in flow behavior!

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