Silicone resin

Japan Shin-Etsu Silicone resin for moldings X-40-2667A X-40-2756

Silicone resin for molding X-40-2667A X-40-2756

As silicones for moldings, X-40-2667A/B and X-40-2756, especially X-40-2756, are excellent in heat resistance due to the silicone content of 100%. Higher Tg is excellent in workability because it can be cured in one liquid.

X-40-2667A (two-component addition-curable silicone)

Excellent heat resistance

project	X-40-2667A	X-40-2756	epoxy	Alicyclic epoxy
Curing method	Addition curing		Anhydride curing
Standard curing conditions	105°CX2h + 170°CX2h	200°CX16h (no stickiness for 1h)	105°CX2h + 170°CX2h
Hardness Shore D	70	67	85	88
Flexural modulus MPa	1110	707	2940	3020
Tg °C	48	150	150	193
Volume change rate due to curing %	-3.3	-3.1	-1.7	-5.3