A4860
PL
C
.
System : Foams
A4860 is a formulated polyol designed for the production of urethane-modified
polyisocyanurate rigid foam in the form of discontinuous blocks. Blowing agents are to be
added before use.
S
APPLICATIONS
Method
QC0-I002-T008
Shelf life (@25o C)
months
6
-
N
MIXING RATIO BY WEIGHT
Value
1.15
g/ml
EC
Density (@25o C)
Unit
TI
Typical Properties
O
N
Thermal insulation of pipelines, process vessels, cold stores, refrigerated containers
etc.
Value
N
Materials
O
A4860
C
HCFC 141b
24
200
L
B9001
76
FOAMING CHARACTERISTICS
(hand mix @ 29°C)
Unit
Value
Cream time
sec.
38
sec.
60
kg/m3
41
G
LO
Property
Gel time
Free rise density
Product Data Sheet
BA
Note: Free rise densities can be varied by varying HCFC 141b levels
1
REV. 20110601
A4860
PL
C
.
System : Foams
STORAGE AND HANDLING
The components are sensitive to moisture and should therefore, at all times, be kept in sealed drums.
Storage temperatures should be in the range 20-25°C to ensure a shelf life of six months.
S
TYPICAL FOAM PHYSICAL PROPERTIES
Mix ratio employed :
Value
EC
Materials
TI
O
N
Tested on block foam made in a mould of dimensions 30 x 20 x 30 cm. Chemicals were mixed using a
high speed mixer.
76
HCFC 141b
24
N
A4860
200
Test Method
Unit
Typical Value
ISO 845
kg/m3
40
ASTM D 1621
DIN 5342
kPa
150 – 200
DIN 4102
-
B2
ASTM C177
W/mK
0.0233
ISO 2796
-
-
- @ - 25°° C
-
% linear change
< 1%
- @ + 70°° C
-
% linear change
<2%
C
Property
Core Density (moulded)
BA
Flammability
L
Compressive Strength (avg.)
Thermal Conductivity initial
(@ 25°°C mean temp.)
G
LO
Dimensional Stability (24 hrs)
Product Data Sheet
O
N
B9001
2
REV. 20110601
A4860
PL
C
.
System : Foams
TOXICOLOGICAL PROPERTIES
N
S
A4860 has not been specifically evaluated for its toxicological properties. However, the similarity of
the product to others, about which health hazard data is available, provides assurance that it
represents minimum hazard. Polyols are low to very low in acute oral toxicity. Because of their low
vapor pressure, polyols present no significant inhalation hazard. These materials generally are not
irritants to the skin, but can cause mild irritant to the eyes.
NOTICE: The information presented herein, while not guaranteed, is, to the best of our knowledge true and
G
Product Data Sheet
LO
BA
L
C
O
N
N
EC
TI
O
accurate. No warranty or guarantee, express or implied, is made regarding the performance or stability of any
product, since the manner of use and conditions of storage and handling are beyond our control.
3
REV. 20110601