Description
Oil Resistant High Temperature Resistant Fluorosilicone Silicone Rubber Raw MaterialBasic Info.
Curing Conditions: Press cure 175°C x25mins cool tool ; Post cure 200°Cx4hrs | | | |
Mechanical Properties | Unit | Min | Max | Min | Max |
Hardness (ASTM D2240) | °A | 35 | 45 | 55 | 65 |
Appearance | | White | | White | |
Specific Gravity | | 1.38 | 1.44 | 1.41 | 1.47 |
Tear Strength (DIE B) | N/mm | 18 | --- | 25 | --- |
Tensile Strength (ASTM D412) | Mpa | 7.0 | --- | 7.0 | --- |
Elongation (ASTM D412) | % | 350 | --- | 300 | --- |
Compression Set(175°C/22hrs) | % | --- | 50 | --- | 50 |
Heat Resistance (200°Cx70hrs ASTM D573) | | | | | |
Hardness Change | °A | -15 | 15 | -15 | 15 |
Tensile Strength Change | % | -30 | +30 | -30 | +30 |
Elongation Change | % | --- | -50 | --- | -50 |
Oil Resistance(150°Cx70hrsIRM903 ASTM D471) | | | | | |
Hardness Change | °A | 0 | -10 | 0 | -10 |
Tensile Strength Change | % | --- | -35 | --- | -35 |
Elongation Change | % | --- | -30 | --- | -30 |
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FAQ
Q1. How to reduce bubbles?1). Put the liquid silicone into the vacuum machine for defoaming, and wait until the pointer of the vacuum machine barometer points to -0.1MPA. This is the best method.
2). Put the liquid silicone in the refrigerator to freeze, delay the curing time, and wait for the natural bubble discharge.
Q2. Why doesn't the silicone cure?
During the operation, it should not be in contact with water, nitrogen, phosphorus, sulfur, organotin or heavy metal elements, nor can it be mixed with condensed silicone (100:2), otherwise it will not solidify, that is called silicone poisoning.
Q3. How to deal with bad demolding?
Before use, the surface of the mold should be cleaned and smoothed; or it can be evenly coated with petroleum jelly/release agent and then on the mold.
Q4. How to increase the service life of silicone molds?
1). When we make the mold, we must choose the appropriate hardness of silicone according to the size of the product.
2). Silicone oil cannot be added to the silicone. The more silicone oil is added, the mold will become softer, and the tensile strength and tear strength will decrease.
Q5 .ls food grade silicone safe?
Food-grade liquid silicone is commonly used to make molds for cakes, ice cream.biscuits, specimens and other handicrafts. It can directly contact food and has noeffect on adults and children, but please do not use it directly.
Q6. Do you offer samples?
We offer free samples.Send samples for you to test the quality and the market.
Q7. What is the lead time ?
According to quantity.Sample:1-3days;Small quantities:5-7days; Largeorder:about 10-15days.
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