Silicone rubber material for swimming class
equipment with IOTA351-20, 30, 40, 856-20, 221-20
|
Item
|
IOTA351-20
|
IOTA351-30
|
IOTA351-40
|
IOTA856-20
|
IOTA221-20
|
|
Product
|
Swimming cap, head strap
|
|
Products
Feature
|
Good resilience and tensile properties, feel comfortable.
|
|
|
|
|
Appearance
|
Semitransparent
|
|
Hardness(HA)
|
18
|
30
|
39
|
19
|
18
|
|
Density（g/cm³）
|
1.11
|
1.11
|
1.12
|
1.07
|
1.06
|
|
Tensile
strength （Mpa）
|
5.5
|
8.0
|
7.5
|
5.0
|
4.5
|
|
Elongation
(%)
|
650
|
700
|
500
|
900
|
900
|
|
Tear
strength (N/mm)
|
15.0
|
24.0
|
24.0
|
12.0
|
12.0
|
|
Linear
shrinkage(%)
|
3.4
|
3.4
|
3.3
|
3.5
|
3.6
|
|
Vulcanizing
agent
|
2,5-bis[tert-butylperoxy-2,5-dimethylhexane
|
Notes:
- Items containing "*"
represent the secondary vulcanization data; others represent first
vulcanization data; “Y” for the liquid glue.
- Hardness containing “C” represent ASKER
C Others represent Shore A.
- Tear mark: A cut mouth with crescent
type cutter testing; C - domestic orthogonal cutting test; Not marked for JISK
type B.
