[performance characteristics]
This product is a two-component RTV silicone rubber, can be at room temperature vulcanization into flexible, elastic and high strength of silicone rubber, vulcanizing products after the high low temperature, no corrosion resistance, ageing resistance and other characteristics; Excellent electrical performance, chemical stability and mechanical properties.
[technical indicators]
DY-OH201 (mid-range) DY-OH202 (high grade)
Before the curing
1. Appearance: white paste white paste.
2, viscosity (25 ℃, CP) : 8000 ~ 8000, 20000 ~ 40000
After curing
3. Hardness (shao A) : 25 ~ 35, 30 ~ 40.
4. Breaking elongation (%) : 200 ~ 250, 250 ~ 350.
5. Tensile strength (MPa) : 2.5 ~ 3.5 ~ 4.5.
6. Tear strength (KN/m) : 1.5 ~ 2.0, 2.5~3.0.
[usage]
1. Suitable for making moulds of sculpture, furniture, decorations and other handicrafts, casting instrument parts; It has the advantages of easy stripping, loyalty to prototype and long service life.
2. Used for filling and sealing of electronic devices and electrical components, making waterproof and insulating coating.
3. The parts of motor, automobile, machinery and chemical equipment are sealed and used for construction filling, which has good strength and elasticity, and excellent moisture resistance and aging resistance.
4. Other unused applications.
[usage and dosage]
Mix the two parts in proportion before using, and stir well to make it even. General dosage: curing agent/base glue is 2 ~ 5%. Cure time, operational time shorten with the increase of the dosage of curing agent and, in terms of relative DY - OH201 takes about 40 minutes, when the dosage of curing agent was 5% when the dosage of curing agent was 5% relative to DY - OH202 takes about 3 ~ 5 hours. In the process of stirring, the product will have bubbles, which can be removed forcibly and vibrate the container, preferably with vacuum suction. If there is a bubble, the strength of the product will decrease.
[precautions]
1. Remove the bubbles as much as possible when making.
2. The materials with the curing agent must be used immediately, and shall not be returned to be mixed with silicone rubber in case of curing failure.
3. After four days, the curing strength of the finished product is the highest, so it should not be used in a hurry.
4. The curing agent is exposed to water vapor and the storage time is too long.
5, when used for filling and sealing, airtight state and more than 150 ℃ after tack phenomenon.
[packaging and shipping]
1. The product has 1kg, 5kg plastic bags and 20kg and 40kg drum packaging.
2. Store in dry and cool places and avoid contact with strong acid and strong alkali.
3. This product is not dangerous goods.