Phenoilc Cotton Cloth Board/Bakelite Hylam Sheet/Tufnol Sheet

1

Appearance

-

Smooth surface, uniform color, no bubbles, no wrinkles, edge cutting neat, no stratification.

3

Vertical layer bending strength(normality)

MPa

≥120

≥100

≥90

≥110

≥125

≥300

5

Parallel impact strength

(Simply supported beam)

KJ/m2

-

≥7.8

≥50

7

Adhesive strength

N

≥3600

-

Parallel layer breakdown voltage（in 90℃transformer oil ）

kv

≥35

≥20

≥35

10

Dielectric constant（1MHz)

-

≤5.5

12

Water absorbing ( thickness 1-20mm)

mg

180～970

206～406

136～277

64-193

3025

PFCC201

Course cotton,Mechanical, electrical performance in general.

3026

PFCC203

Fine cotton,stronger mechanical and electrical performance.