spray foam for insulation

spray foam for insulation
1) construction convenient
2) fast, real cost saving, time, effort
3) spray foam
4) insulation
1.1 Commodity Systems:
polyurethane spraying composite raw material

1.2 Model:
SH-8011

1.3 Application:
SH-8011 Spray Polyurethane Foam insulation composite raw material is principally used for Commercial and residential building insulation, refrigerator storage and etc.


1.4 Introduction:
Spray Polyurethane Foam, commonly known as SPF, is derived from the reaction of an isocyanate component and a polyol resin component. When the two liquids combined, a chemical reaction occurs which creates a rigid or semi-rigid foam. The mixed liquid expands many times its original size. Once cured, it solidifies and becomes polyurethane foam.



2.1 Figure
Component A: in the room temperature is a white liquid after the merger it is a colorless liquid.
Component B: in the room temperature is a dark liquid, and after the merger it will be transparent, slightly opalescent liquid.

2.2 Physical-chemical properties
Component A
Component B
Parameter
Value
Parameter
Value
Hydroxyl Value(Mg • HOK/g)
450± 50
-NCO content (%)
30 - 33
Viscosity at 25 ° C (mPa • s)
200 ± 50
Viscosity at 25 ° C (mPa • s)
200 ± 40
Specific gravity at 25° C (g/cm3)
1.18 ± 0.05
Specific gravity at 25° C (g/cm3)
1.235 ± 0.02

2.3 Technological features of the systems
Parameter
Unit
Value
Processing temperature:
Component A
Component B
°C
°C
25
25
Mix ratio A / B

100/110
Creaming time
sec
3 - 5
Gel time
sec
10 – 15
Rise time
sec
13 – 18

2.4 Foaming properties
Parameter
ME
Index
Testing method
Free density
kg/m³
35 ± 2
GB6343 - 86
Overall density
kg/m³
55 ± 5
GB6343 - 86
Coefficient of thermal conductivity(20.C)
W/m.K
≤0.025
GB10294 - 88
Compression strength
Mpa
≥0.3
GB8813 - 88
Obturator rate
%
≥92
ISO DIS4590
Dimensional stability (-30.C - 100.C/96h)

≤1
GB8811 – 88
Water absorption rate
%
≤3
GB8810 – 88




3.1 Durability
The stored in tightly closed original containers
Component A: three months from date of manufacture.
Component B: six months from date of manufacture
3.2 Packaging
Two-component polyurethane system comes in single-use packaging.
The components A and B are kept in tight containers of 250kg steel drums (individually wrapped)., or in other containers with customers agreed. The drums should be filled to more than 90%.
The following information will appear on the packaging:
- Product name or mark,
- Date of manufacture,
- Number of the lot
- Net Weight
- Guarantee

3.3 Storage
The components A and B are kept in place at 15-25 ° C.
3.4 Transport
The components A and B are to encourage, by any, covered transport