silicon rubber rtv moulding for elastomeric PU good tensile strength low shrinkage free sample
Description
Silicon rubber is a kind of elastomer, somebody also call it silicone elastomer. We only produce and provide rtv2 silicone rubber, it's liquid silicone which will vulcanize in both room temperature or heated temperature with good self-leveling ability.
Application and Advantages
Mold making silicone rubber for reproducing and replicating art crafts, furniture, prototyping, architectural elements, garden ornaments, shoe, tire, soap, candle, jewelry, vacuum bag and so on, since molding silicone is suitable for casting resin, PU, PVC, polyester, gypsum, plaster, concrete, cement, stone, GRC, wax, jewelry and so on.
| Item No. |
Viscosity (cps) |
Mix Ratio (By weight) |
Operating Time(25ºC /min) |
Curing time (hr, basically
cured) |
Curing time (hr, perfectly cured) |
Hardness (shore A) |
Tear strength (kN/m) |
Tensile strength (Mpa) |
Elongation (%) |
| INI-505 |
4500±500 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
5±2 |
9±2 |
2.3±0.5 |
410~510 |
| INI-510 |
9000±3000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
10±2 |
14±2 |
3±1 |
350~450 |
| INI-515 |
12000±2000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
15±2 |
18±2 |
3.5±0.5 |
390~460 |
| INI-520 |
15000±1000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
20±2 |
21±3 |
4.4±0.5 |
405~500 |
| INI-525 |
18000±2000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
25±2 |
26±5 |
4.2±0.5 |
455~520 |
| INI-530 |
23000±5000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
30±2 |
28±5 |
5.6±0.5 |
420~510 |
| INI-535 |
19000±5000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
35±2 |
25±4 |
5.2±0.5 |
260~410 |
| INI-540 |
12000±5000 |
100 :2-100:4 |
30~50 |
3~5 |
12 |
38±2 |
21±4 |
5±0.5 |
190~360 |
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Notes: Above data are only reference values, actual data is floating and adjustable.
Advantages:
1) Flexible and low viscosity which will copy finest details and patterns from exquisite products.
2) Durable with good strength, top quality to guarantee molding times
3) Easily demolding
4) Not oily, no bubbles
5) Can resist high temperature 200ºC - 350ºC, and low temperature -65ºC
6) Low shrinkage less than 0.2%, platinum cure type is less than 0.1%
7) Aging resistance, acid and alkali resistance
8) Platinum cure silicone is food grade certified, nontoxic, odorless
Operation instructions
- Mix part A and pars B evenly with 100:3 mixing ratio.
Notes: 1) Weigh the two parts exactly by electronic weight. For example, the operation time will be shorten after adding too much catalyst.
2) Mix part A and part B evenly. Otherwise the silicon rubber will be partly solidified which will make the finished molds meet a short life and waste silicon rubber.
2. Vacuum pumping
Notes: 1) This step is not have to have, but it is best if there is one. It will discharge all air in the mixture successfully, so as to ensure that there
will be no bubbles in the finished mold.
2) This step is less than 10 minutes. Otherwise, it Will cause cross-linking reaction, and no more further steps will be available.
- Pouring casting or Brush molding
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 suggest to set the mold for another 12 hours after demould before put it into large production.
Operations of pouring way
Operations of brusing way
Handing and Storage
- Precautions for safe handling:
Protective measures: Training should be provided to anyone working with or near this material. Training should cover potential health effects and proper handling techniques. Avoid contact with eyes, skin and clothing. Avoid ingestion and inhalation.
Measures to prevent fire: Ensure good local exhaust ventilation. Keep container away from any sources of ignition or heat (e.g. open flames, hot surfaces). The work area should be equipped with the corresponding species and quantity of emergency equipment, spills emergency treatment equipment and appropriate storage material.
Measures to prevent aerosol and dust generation: Ensure good local exhaust ventilation.
Measure to protect the environment: Do not allow this products to be released to the environment without proper treatment.
Advice on general occupational hygiene: Eating, drinking and smoking should be prohibited in areas where this material is handled, stored and processed.
- Conditions for safe storage, including any incompatibilities:
Technical measures and storage conditions: Store in a cool, dry, well-ventilated area away from incompatible substances, feedstuffs, beverages and foods. Keep away from heat, sparks and flame. Treat carefully, avoid physical damage to containers. The storage area should be equipped with the corresponding species and quantity of emergency equipment, spills emergency treatment equipment and appropriate storage material.
Requirements for storage rooms and vessels: Keep container tightly sealed.
Why Choose us
1. Powerful factory with a production capacity of 8000 per day, we are the more than 10 years factory in China, with excellent and stable quality.
2. High-end research and development (free sample)
Being a leading liquid silicone manufacturer in China, we have a professional R&D team and QC team(12 experts ) and our product is RoHS, MSDS, ISO, REACH, UL approved, so there is no need to worry about the quality.
3,Efficient service
We can provide free training of silicone technique and free silicone samples. we have a professional sales team who will solve your problems patiently. Besides, with efficient logistics distribution system, you could get you goods earlier. Last, good after-sales service,we build long term cooperation relationship, once there is quality problem, we could solve right away. More importantly, return and exchange are accepted while quality problems occurred.
Package
1kg/drum,5kg/drum, 20kg/drum,25kg/drum, 200kg/drum.
SHELF LIFE
Twelve (12) months from date of shipment when stored at 25°C in original unopened packages
Free sample is available for your try. Welocme to ask~
Any futher information, pls kindly contact our Sales Manager Ms.Lisa, thanks in advance.
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