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Help CenterRtv 2 Silicone Rubber Mold Making for Concrete Casting Mould
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1. Description of rtv 2 silicone rubber mold making for concrete casting mould
C-830 liquid silicone rubber is condensation cure silicone rubber for mold making. The liquid silicone rubber will be cured under room temperature. It's two components, the mixing ratio is 100:2. Part A is a flowable liquid silicone, Part B is the catalyst. It has an exceptional fluidity and good operability.
2. Characteristics of rtv 2 silicone rubber mold making for concrete casting mould
* An exceptional fluidity and good operability, easy to demold
* Good tensile strength and tear strength
* Suitable hardness
* Copy detailed pattern
* Good flexibility
* Eco-friendly
* Long shelf-time &lifetime
3. Application of rtv 2 silicone rubber mold making for concrete casting mould
C-830 liquid silicone rubber is perfect molding material, it is suitable to make mold for concrete casting, artificial stone, brick, cement casting, gypsum decorations, plastic product, resin craft, polyester, polyurethane, bronze casting, statues, jewelry, wax, crystal, tire mold, shoe mold, clay casting, ceramic casting. etc.
C830 liquid silicone rubber is mainly suitable for small or middle sized products with delicate pattern by pouring and brushing operation.
4. Datesheet of rtv 2 silicone rubber mold making for concrete casting mould
|
Item No. |
Hardness (shore A°) |
Viscosity (CPS) |
Tensile-strength ( kgf /cm2 ) |
Tear-strength (kgf /cm2 ) |
Elongation-break(%) |
Mixing ratio |
Operation time (25 ℃ ) |
Curing time (25 ℃ ) |
Shrinkage |
C-830 |
30±1 |
25000±2000 |
≥45 |
≥25 |
≥400 |
100:3 |
20-30 mins |
2-3h |
≤0.3% |
5. Using instructions of rtv 2 silicone rubber mold making for concrete casting mould
Step 1: Prepare and clean the prototype.
You must make sure your original molds perfect, fix the original mold on a board, then using some assistant material (like cardboard) to make a frame for to surround the prototype. The frame is no need, if we make the mold by brushing way.
Step 2: Take the silicone and catalyst as the ratio 100:2 (silicone : catalyst= 100:2), mix the silicone rubber and catalyst evenly.
Notes: rtv silicone rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of flowing liquid and part B is the curing agent. Remember to mix part A and part B evenly, otherwise the silicone rubber will be partly solidified and this will bring troubles for your final operation. What's more, the finishes molds will have a short life. All of these will cause a waste of silicone rubber.
Step 3: Vacuum pumping.
After mixed the silicone evenly, it is better to release the bubble by vacuum pumping.
Step 4: Pouring cast or brushing cast.
After released the bubble, we can pour/brush the silicone rubber on the prototype.
Notes: Please finishes all the steps within the operation time. If not, it will cause cross linking reaction, and no more further steps will be available. So, we have to pay attention to the pot life and curing time.
Packing
Package
25KG/drum vacuum packing for part A +1kg/ bottle catalyst for part B
200KG/drum packing for part A +1kg/ bottle catalyst for part B
Shelf life
1. Twelve(12) months when stored under dry and cool place by original package under 25℃
Why Choose Us?
1.Free Sample
2.Sample Test
3.Technical Support
4.Engineers Site Instruction
5.New products developing
6.New Market developing
7.Factory Visiting Reception
8.China visiting reception
9.China Latest silicone news
10.Related Products Purchasing Assistance
11.More than 8 years experience in producing liquid silicone rubber
Contact Us
Any inquiry, feel free to contact Ms. Sybil:
Email: Sybilgan95@gmail.com
Mobile:86-18482183488
Tel: 86-0769-85303932
Skype:gcsilicone6
Website:
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