C Series – Flame Retardant Grade

C SERIES –FLAME RETARDANT GRADE

Sunchem C series EPS is flame retardant EPS which has obtained US Underwriters Laboratories Inc.(UL) approval number E248974.
C series obtains the properties of excellent flame retardation, high expansion ratio, rapid expansion, low shrinkage rate of block, wide range of operation and suitable for various block machines, automatic machines and manual pressers. C series EPS can be widely used for thermal insulation, construction materials, lightweight fill materials and packing for electronic appliance, etc.
Select the size of bead as per the requirements on products shape and density. Sunchem can provide full series and satisfy all kinds of inquiries.

Series Grade Bead Size
(mm)
Foam density
(g/l)
Principal Applications
C-SELF
EXTINGUISH-ING
GRADE
C-102 1.40-2.00 14-20 Use for block
C-103 1.00-1.60 10-12.5 Use for block and
big packing product
C-104 0.85-1.25 11-14 Use for block and
big packing product
C-105 0.70-1.00 12.5-13 Use for block and
middle density packing
C-106 0.50-0.80 13-18 Use for high density
block and special use
C-107 0.40-0.60 25-33 Use for high density
block and special use
C-108 0.30-0.50 18-50 Use for high density
block and special use

Technical Specification:

Specifications C-series
Sieving 95%
Bulk density 0.5-0.6
Blowing agent Pentane
Blowing agent >4.0%
Residual Monomer =0.3%
Moisture content =0.5%
CFC content nil

Processing:

1.Pre-expansion: Batch pre-expander(“FANGYUAN”PSJ-110 type)
Item C-series
Main steam pressure(kg/cm2) 5-6
Steam pressure for pre-expanding(kg/cm2) 1.10
Temperature in vessel(?) 108-110
Feeding speed(kg/times) 4.8-5.6
Heating time (s) 25-35
Weight (g/L) 10.5-13.5
2.Aging time:
Maturation after pre-expansion C-series
Summer & Autumn 3-4h
Winter & Spring 3-4h
3.Molding:(“jin Cheng”JC-ll D type)
Molding data C-series
Main steam pressure(kg/cm2) 5.0-7.0
Air pressure(kg/cm2) 5.0-7.0
Cooling water pressure(kg/cm2) 3.5-5.0
Penetrating pressure(kg/cm2) 0.50-0.65
Molding pressure(kg/cm2) 0.50-0.63
Mold fixing pressure(kg/cm2) 0.40-0.50
Mold moving pressure(kg/cm2) 0.35-0.45
Penetrating heating (s) 11-17
Molding heating (s) 6-10
Heat preserving time (s) 5
Water cooling time (s) 15-25
Draining (s) 2-5
Sealed time (s) 10-15
Cycle time (s) 130-150
4.Big size Molding of construction material:
Big Size Molding of
construction material
C-103 C-104 C-105 C-106
PSB-600C(size:6.06m*1.28m*1.005m)
Aging time(g/l) 6.2-7.0 10.5-11.2 7.0-7.6 12.0-12.8 7.5-8.2 6.8-7.4
Air pressure(Mpa) 0.08 0.08 0.09 0.08 0.09 0.08
Preheating time (s) 8 8 8 8 8 8
Penetrating pressure 1(Mpa) 0.058 0.06 0.07 0.058 0.07 0.05
Penetrating pressure 2(Mpa) 0.08 0.077 0.089 0.08 0.089 0.08
Penetrating time 1 (s) 11 13.2 8 13 13 10.5
Penetrating time 2 (s) 1.3 1.3 1.3 1.3 1.3 1.3
Heat preserving time (s) 12 12 12 8 12 12
Blow down time (s) 12 12 12 12 12 12
Cooling time (s) 280 300 250 300 250 250
Unlock time (s) 5.4 5.4 5.4 5.4 5.4 5.4
Molding unload (s) 13.2 13.2 13.2 13.2 13.2 13.2
Demoulding (s) 1 1 1 1 1 1

PDF – C Series – Standard Grade

Notice:
The information above is deemed reliable but not guaranteed. The descriptions, designs, and information is intended for reference purposes only.