Pvc foaming board thickness.

1-6mm : Free-foaming board

6-20mm: Celluka foam board

Extruded foaming board

General Pvc foaming board Reference Formulation

PVC  100

Ca.Zn STA 4.5-5.5

Recy 30-40

Cal  30-40

OA6  0.5-0.6

PE WAX 0.3-0.5

Lubricant HK-60  0.6-0.8

AC Blowing Agent  0.6-0.8

NC Blowing Agent  0.8-1.5

Foam regulator  HK-90  8-12

Lubricanting Processing Aid  HK-175  1.5-2.0

Regular questions our customers meet.

1. High density of Pvc foaming board.   2.Nonuniform and loose Strcture of bubble    3. Bad surface performance    4. Short period of machine operation

Performance :

1.Melt strength is too low  2.Bad plasticization  3 .Un-reasonable outer lurbricant  4 .un-reasonable inner lubricant

Analysis：

1.Low melt strength, raw material can’t cover the gas, Gas leak lead high-density

2. bad plasticizer

3.Outer lubricant make plasticizer slow, reduce the melting presurre, increase the friction with metal leading high-melting temperature.

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