Optically clear silicone encapsulants

LED, photovoltaic (PV) and other light sensitive devices require UV stable, non-yellowing encapsulants for protection and improved light transmission. The table below shows a range of addition cure silicones which are temperature and moisture resistant, non-yellowing and UV stable.

Product	Hardness	Viscosity mPas	RI	Mix Ratio
OPT7020	40	4500	1.40	10:1
ACC Q-Sil 218	59	3000	1.40	10:1
ACC Q-Sil 222	59	2200	1.40	10:1
ACC QLE1102	45	1000	1.40	1:1
ACC Q-Gel 300	Gel	1000	1.40	1:1
ACC Q-Gel 301	Gel	2000	1.40	1:1
ACC Q-Gel 310	Gel	1000	1.40	1:1
ACC Q-Gel 311	Gel	1000	1.40	1:1
ACC Q-Gel 900	Gel		1.43	1:1
ACC Q-Gel 910	Gel		1.47	1:1
ACC Q-Gel 920	Gel		1.49	1:1
ACC Q-Gel 92-14-1	Gel	650	1.515	1:1
ACC Q-Gel 92-16-1	Gel	2820	1.539	1:1
ACC Q-Gel 92-18-1	Gel	5690	1.549	1:1

Of special note is ACC Q-Sil 222 which is self bonding to a wide range of substrates without the use of a primer.

These materials are technically well suited to the following applications

• LED potting


• Outdoor signage, displays and lighting


• PV module manufacture


• PV concentrator cell manufacture


• Sealing aviation displays

Check out our range of silicones from ACC and Opti-tec.