Guangzhou Ruihe New Material Technology Co., Ltd
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Food Grade Liquid Silicone For Food Safe Silicone Rubber Candy Mould Making With FDA, REACH
Description
Liquid silicone rubbers are pumpable two-part compounds that are delivered ready to use. They are vulcanized by addition curing.
Component A contains catalyst and component B functional polysiloxane as a curing agent.
Compared to peroxide curing, liquid silicone rubbers do not release any curing by-products.
| Style No. | RH6250-50 |
| Raw material | Silicone oil, polysiloxane(base polymer),(silicates fillers),etc |
| Basic Color | Micro blue transparent, translucent |
| Appearance | Viscous Liquid, sticky liquid, two parts |
| Shelf time | 12 months |
| Applications | Kitchenware, nursing bottle, nipple, diving goggles, baby toys |
Typical Properties
| RH6250-50 | |||
| Properties | Unit | A | B |
| Appearance | / | transparent | transparent |
| Viscosity | mPa.s | 1600000 - 2200000 | |
| Density | g/cm3 | 1.12 ± 0.02 | |
| Shore A Hardness | A/JLS | 50 ± 3 | |
| Tensile Strength | MPa | ≥ 8 | |
| Elongation at break | % | ≥ 550 | |
| Tear Strength | KN/m | ≥ 25 | |
| Linear Shrinkage | % | ≦ 0.1 | |
| Tensile set | % | ≥ 1.7 | |
| Rebound | % | ≥ 55 | |
| Compression set | (22 hrs at 175℃) % | ≦ 35 | |
These figures are for reference only, please contact us for details.
Typical properties of the vulcanisate:
The mixing ratio of components A: B = 1: 1.
Vulcanization: 5 min. 150 °C + 4 hrs. 200 °C post cure
LSR is platinum cured(vulcanized) materials which are mixed in a 1:1 ratio by weight.
Key Features And Benefits
| High resistance to yellow |
| Rapid vulcanization |
| Sterilizable with ethylene oxide, steam and gamma radiation |
| Neutral odor and taste |
| High rebound property |
| High thermal stability |
| Good physical character, stable quality and easy to operate |
| Easy pigmentable with the LSR color pastes |
Certificates
Rui-He silicone rubber obtained the following test certificate: RoHS,FDA,MSDS,LFGB,Paths, ... ETC.
Packaging & Storage
Notice
This product cannot be contacted with compounds containing N, P, S to avoid affecting the catalytic effect of platinum.
Instructions
Here is a look at the LSR molding process:
1. LSR A + B components typically come in a 5-gallon pail or 55-gallon drum. A process controlled pumping kit presses down on the buckets to force the material into the static mixer and feed into the injection unit.
2. Then, streams of pigment can be added and controlled. In the injection, press material will be mixed together additionally with a screw and pushed forward to create a “shot” of material, or the amount needed to fill the mold.
3. After the material is injected into the mold, it will then stay clamped together to cure the LSR. Then, either an operator or a robot will remove the cured product from the mold and the cycle repeats. It is a very quick efficient process that typically averages 30 seconds.
If you need to know the prices of our silicone rubbers, please contact us. We do not provide prices on the website because prices fluctuate for many reasons.