| Customization: | Available |
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| Material: | Organic Silicone |
| Application: | Industrial |
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Two Parts Liquid Addition Cure Silicone Rubber for Food Grade Molds is general called two-component room temperature vulcanization silicone rubber with excellent fluidity and good operational performance. Add 1A:1B at the room temperature, the silicone rubber is still operational within 30 minutes, and in 4-6 hours, an elastic silicon mold will be obtained with resistance to deformation, high-temperature, acid and alkali and expansion. The silicone rubber is mainly applicable to mold duplication of poly crafts, resin craft works, lightings, candles, etc. And fabrication of precision molds.
Silicone rubber is used for making:
| Typical general characteristics |
Inspection Method |
Model code | ||||||||
|
Product data (catalyzed A+B) |
OTT-J8 series | |||||||||
| Hardness | Shore A | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 50 |
| Mix ratio | A:B | 1:1/10:1 | ||||||||
| Color | / | Translucent | ||||||||
| Pot life | 25ºC(77F) | 20-40 mins | ||||||||
| Curing time | 25ºC(77F) | 3-5 hours | ||||||||
| Viscosity | mPa.s | 1500 | 3000 | 4000 | 4500 | 5000 | 6000 | 7000 | 8000 | 12000 |
| Tear strength | KN/m | 12 | 15 | 18 | 24 | 22 | 21 | 22 | 18 | 12 |
| Tensile strength | MPa | 2.2 | 4.2 | 5.2 | 5.2 | 6.2 | 6.5 | 7.2 | 7.8 | 7.0 |
| Elongation | % | 500 | 450 | 450 | 500 | 500 | 450 | 450 | 400 | 400 |
| Shrinkage | % | 0.1 | ||||||||
Features:
Step 1: prepare the original molds
Make your original molds perfect. fix it on a board. And fix the original mold on a board , then used four piece of board to enclose the original molds .
Step 2: Take 100 G parts A and add 100 G parts B and mix them evenly.
*Notes: Mold making silicon rubber is a kind of flowing liquid ,it contains two parts. Part A is a kind of flowing white liquid and part B is the curing agent or catalyst .Pls follow the step strictly:
1.Weigh the two part exactly by electronic weight. If not, for example add too much catalyst , the operation time will be too fast to operate ,which will cause inconvenience to operate .
2.Mix part A and part B evenly. Otherwise the silicon rubber will be partly solidified and this will give birth to difficulties in your final operation. What's more, the finished molds will meet a short life. All of these will cause a waste of silicon rubber.
Step 3: Vacuum pumping(optional)
Without exception, this step takes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available.
Step 4: Pouring casting or Brush operation
*Notes:1. For simple pattern products we suggest use pouring operation way, which will be very easy to operate and demould. Pourable silicone require low viscosity which will be easy to flow smoothly and easy to de-air .
2.For delicate pattern products we suggest use brushing operation way, which can copy the pattern exactly. Brushable silicone require high viscosity which won't be easy to flow away and easy to brush.
3. We sugges to set the silicone mold for another 12 hours after demould before you put it into a large production.
1. Specialized in rtv2 silicone for 15 years
2. Advanced production and R&D equipment, we have two separated production line and equipment
3. Professional R&D team
4. Experienced QC team
5. Professional sales team, fastest response 24 hours full-time service
6. On time delivery, monthly production reaches 200 tons
7. Professional technical support, both in rtv2 silicone and mould making technology
8. Face-to face business talking. We would fly to talk with you only if you have the willing of long term business cooperation.
9. Factory visiting anytime
10. All kinds of certificates, such as MSDS, , RoHS etc.Highest performance cost ratio - best quality and reasonable price.
11. Experienced purchasing team to guarantee sufficient raw material
12. DIY service: various size of packages and customized labels
13. Sharing latest industry information
14.Marketing assistance to help you expand your local business
1. What's silicone products you are making?
--liquid silicone, silicone rubber, silicone oil; Due to different silicone molds, our silicone has different viscosity, and cause different hardness, density to meet the requests from client.
2. Do you offer free sample to client?
--Yes, we can provide the sample for test.
3. How about the quality control in your factory?
--We have professional QC team to control the quality during production. Goods will be 100% inspected before shipment.
4. How to remove the bubbles during my mould making?
--After mixing liquid silicone with curing agent, please put the material into vacuum machine to take off the bubbles.
5. How to get good silicone mould to use longer time?
--The best way is:
#A, Please choose the right liquid silicone according to your products.
#B, Don't use any silicone oil in mold making, because it can make the silicone mould become too soft to use.
#C, Silicone mould can be used longer after the whole silicone mould fully cured, so it's better to wait 2 hours after mould finished.
6. Why silicone rubber add curing agent after mixing a lot of bubbles?
--This is normal physical phenomena. The liquid will produce a large number of bubbles in the mixing time, so, it must pass through the vacuum exhaust bubble treatment.
Guangzhou OTT New Materials Co., Ltd. is a leading professional manufacturer of RTV liquid silicone in China. We are a science and technology manufacturer, professionally focus on R&D for liquid RTV silicone, and provide a serial services of silicone such as molding, insoles, sexy dolls, electronics, relative silicone materials and latest developed products, etc
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