SB-328F copper clad laminate have high mechanical strength, excellent electrical performance, good flammretardancy,

SB-328 Copper clad laminated sheet consist of bleached wood pulp paper, impregnated with modified phenolic resin and clad with single glass fabric on both sides and electrolytic copper foil. Having high mechanical strength, excellent electrical performance, good flammretardancy, good dimensional stability, low bow and twist and are suitable for black-and-white TV sets, records and etc.

Standard: CEPCP(G)-22F,  Equivalent to IEC-249-2-3FV, NEMA: FR3

Technical requirements are shown in table 1.

                     

Table 1:  Technical requirements

No.	Item	Unit	Conditioning	Normal Value
1	Solder float at 260, min.	s	A	10
2	Peel strength  min.	N/mm	S-5S/260	1.2
3	Flexural strength  min.	MPa	A	110
4	Water absorption  max.	mg	E-24/50+D-24/23	40
5	Dissipation factor  max.	-	C-96/20/65+C-96/40/90	0.05
6	Dielectric constant  max.	-	C-96/20/65+C-96/40/90	5.0
7	Volume resistivity  min.	MΩ·m	C-96/20/65+C-96/40/90 E-2/100	2×103 100
8	Surface resistance  min.	MΩ	C-96/20/65+C-96/40/90 E-2/100	2×104 1×103
9	Flammability	-	A	FVO/FV1
10	Pull-off strength  min.	N	A	60

Remarks: ALL data listed in above table are typical values from SB-328F (XJ-399) CCL in thickness of 1.6mm and with copper foil of 35μm.

Copper clad laminated sheet