IPC Spec.

Reinforcement

Resin System

ID Ref.

Tg C°

Dk @ 1Mhz

IPC-4101/00

Cellulose Paper

Phenolic

NEMA XPC

N/A

5.6

IPC-4101/01

Cellulose Paper

Modified Phenolic

NEMA XXXPC

N/A

4.8

IPC-4101/02

Cellulose Paper

Phenolic, Flame Resistant

NEMA FR1

N/A

6.0

IPC-4101/03

Cellulose Paper

Flame Resistant

NEMA FR2

N/A

5.0

IPC-4101/04

Cellulose Paper

Modified Epoxy, Flame Resistant

NEMA FR3

N/A

4.8

IPC-4101/10

Woven E-Glass Surface / Cellulose Paper Core

Modified Epoxy, Flame Resistant

NEMA CEM-1

N/A

5.4

IPC-4101/11

Woven E-Glass Face Sheets / E-Glass Felt Core

Polyester, Flame Resistant

NEMA CRM-5

80°

4.1

IPC-4101/12

Woven E-Glass Face / Non-Woven Glass Core

Epoxy, Flame Resistant

NEMA CEM-3

N/A

5.4

IPC-4101/20

Woven E-Glass Fabric

Epoxy, Non Flame Resistant

NEMA G10, MIL-S-13949/03 GEN

100°

5.4

IPC-4101/21

Woven E-Glass Fabric

Epoxy, Flame Resistant

NEMA FR4, MIL-S-13949/04 GF/GFN/GFK

110°

5.4

IPC-4101/22

Woven E-Glass Fabric

Epoxy, Hot Strength Retention, Non Flame Resistant

NEMA G11 - GB

135-175°

5.4

IPC-4101/23

Woven E-Glass Fabric

Epoxy, Hot Strength Retention, Flame Resistant

NEMA FR5, MIL-S-13949/05 GH

135-175°

5.4

IPC-4101/24

Woven E-Glass Fabric

Majority Epoxy Modified or Unmodified, Flame Resistant

NEMA FR4, MIL-S-13949/04 GF/GFG

150-200°

5.4

IPC-4101/25

Woven Glass

Epoxy/PPO, Flame Resistant

NEMA FR4, MIL-S-13949/04 GF/GFG

150-200°

4.4

IPC-4101/26

Woven Glass

Majority Epoxy Modified or Unmodified, Flame Resistant

NEMA FR4, MIL-S-13949/04 GF/GFT

170-220°

5.4

IPC-4101/27

Unidirectional, Cross-plied Fiberglass

Majority Epoxy, Flame Resistant

None

110°

5.4

IPC-4101/30

Woven E-Glass

Triazine and/or Bismalemide Modified Epoxy, Flame Resistant

MIL-S-13949/26 - GFT

170-220°

4.8

IPC-4101/40

Woven E-Glass

Polyimide

MIL-S-13949/10 GI/GIN

200°

5.4

IPC-4101/41

Woven E-Glass

Polyimide

MIL-S-13949/10 GI/GIL

250°

5.4

IPC-4101/42

Woven E-Glass

Polyimide

MIL-S-13949/10 GI/GIJ

200-250°

5.4

IPC-4101/50

Woven Aramid Fabric

Modified Epoxy

MIL-S-13949/15 AF

135-190°

4.5

IPC-4101/53

Non-Woven Aramid

Polyimide

MIL-S-13949/31 BI

220°

4.5

IPC-4101/54

Unidirectional, Cross-plied, Aramid Fiber

Cyanate Ester Resin

None

230°

4.2

IPC-4101/55

Non-Woven Aramid

Modified Epoxy

MIL-S-13949/22 BF

135-190°

4.0

IPC-4101/60

Woven Quartz Fabric

Polyimide

MIL-S-13949/19 QIL

250°

3.4

IPC-4101/70

Woven S-2 Glass

Cyanate Ester

MIL-S-13949/27

230°

4.3

IPC-4101/71

Woven E-Glass

Cyanate Ester

MIL-S-13949/29 GC

230°

4.5

IPC-4101/80

Woven E-Glass Surface / Cellulose Paper Core

Modified Epoxy (catalyzed for additive properties), Flame Resistant

NEMA CEM-1

N/A

5.4

IPC-4101/81

Woven E-Glass Face / Non-Woven Glass Core

Modified Epoxy (catalyzed for additive properties), Flame Resistant

NEMA CEM-3

N/A

5.4

IPC-4101/82

Woven E-Glass

Modified Epoxy (catalyzed for additive properties), Flame Resistant

NEMA FR4

110°

5.4