Silver-Coated Solid Glass Spheres

Silver-coated solid glass spheres are used in a wide range of applications across many technologies. Their versatility is demonstrated by the fact that no fewer than 20 different grades are available, with sizes ranging from 14 to 100 microns and silver contents from 2% to 40%.

Six products are classified as microspheres to assist with selection for use in certain applications where particle size is the most important requirement.

Applications:

EMI shielding
Conductive adhesives
Z-axis conductive films

Advantages:

Good conductivity
Regular spherical particle shape
Closely controlled range of particle size distribution
Low density compared to metal filler
Spherical shape gives good flow in injection moulding
Light colour

Properties:

TYPE	GRADE	SILVER CONTENT (%)	PARTICLE SIZE (µm)	AVG. DENSITY (g/cc)
Spheres	S 2429 S	4	89	2.6
	S 3000 S	4	41	2.6
	S 3000 S2E	8	32	2.7
	S 3000 S2M	8	41	2.7
	S 3000 S2.5N	10	34	2.7
	S 3000 S3E	12	32	2.8
	S 3000 S3M	12	41	2.8
	S 3000 S3N	12	34	2.8
	S 3000 S4M	16	41	2.9
	S 4000 S3	12	23	2.8
	S 5000 S3	12	14	2.8
	SG 02 S40	40	2.5	3.6
Microspheres	TP12 S16	16	12	2.9
	TP25 S12	12	25	2.8
	TP35 S12	12	35	2.8
	TP50 S12	12	50	2.8
	TP50 S06	6	50	2.6
	TP100 S02	2	100	2.5