TECHNICAL DATA SHEET
1. Scope
This specification applies to SJ-SR03053
2. Materials and Processing Method
SJ-SR03053 is polyurethane foam sheet. It is manufactured by continuously casting and curing mechanically frothed to the desired thickness and density.
It is supported by casting onto the polyester film (PET), thus excellent support and balance. It contains no plasticizer to migrate, which may cause contamination.
3. Construction
|
ITEM |
CLASS |
REFERENCE |
|
① base Material |
Polyurethane |
Polyurethane foam sheet |
|
② Support Layer |
Polyester Film |
Polyester film (PET) |
Fig 1. Construction
4. Dimensions
The dimensions and tolerance of the SJ-SR03053 shall be conformed to Table 1.
Table 1
|
Thickness (mm) |
Width (mm) |
Length(m) |
Density(g/㎤) |
Color |
|
0.30 ± 0.03 |
500 |
100 |
0.53 ± 0.03 |
Black |
5. Quality
Characteristics : The characteristics of the SJ-SR03053 shall be conformed to Table 2.
Table 2
|
Properties |
Values |
|
Thickness (mm) |
0.30 ± 0.03 |
|
Standard Color |
Black |
|
Density(g/㎤) |
0.53 ± 0.03 |
|
Compression Set 50% at 23℃ at 70℃ |
＜ 2(%) < 10(%) |
|
25% C.F.D (kg/㎠) |
0.24 ± 0.03 |
|
RoHS, Halogen free |
Pass |
6. Test methods
6-1. Thickness : to be measured thickness gauge.
6-2. Density : to be measured in ASTM D3574
6-3. Compression Set : to be measured in ASTM D395
6-4. 25% Compression Force Deflection : to be measured in ASTM D3574