Moldes de pedra de borracha de silicone/moldes de gesso fazendo RTV2 líquido em forma de silicone líquido
RTV2 molding silicone rubber is mainly used for poured or brush onto products for casting polyurethane,epoxy, polyester resin, gypsum/plaster, cement, waxes, low melt alloys/metals, etc. with the advantages of low viscosity, good tensile strength, high tear strength, high temperature resistance, high duplication times and repeated use, etc. It is suitable for small products or fine and precision products which is difficult to demould.
This silicone rubber is one of the products with the highest use level in the production of craftwork gifts and the shrinkage is up to 3.
RTV silicone rubber used for Poly technique, lightings, candles, soap and molds with small and medium size.
Features
• Low Shore A hardness (approx. 2A-45A)
• Excellent tear strength
• Very high elongation and flexibility
• Little rate of deformation and shrinkage
• High temperature resist,high tear resist
Physical properties of Condensation Cure Mold Making RTV2 Silicone Rubber
| Appearance | Mix ratio by weight | Pot time | De-mold time | Full curing | |
| Curing agent | Clear | 100:2 | 60-70 min | 12-16 hours | 24 hours |
| Clear |
100:3 |
30-40 min | 6-8 hours | 12 hours | |
| Clear | 100:4 | 15-20min | 2-3 hours | 6 hours | |
Antioxidant Agent
If mix 0.5%-1% ratio of RTV2 silicone Antioxidant agent into silicone rubber, it can great increase using times about 30%-100%, and casting resins resist, particularly polyesters.
| 805 | 810 | 815 | 820 | 825 | 830 | 835 | 840 | 845 | |
| Density | 1.06-1.08 | 1.06-1.08 | 1.06-1.08 | 1.08-1.10 | 1.08-1.11 | 1.08-1.12 | 1.10-1.15 | 1.15-1.18 | 1.25-1.28 |
| Viscosity |
14000±20 00 |
16000±20 00 |
18000±20 00 |
22000±20 00 |
23000±20 00 |
25000±20 00 |
25000±20 00 |
25000±20 00 |
14000±20 00 |
| Mix ratio | 100:3 | 100:3 | 100:3 | 100:3 | 100:3 | 100:3 | 100:3 | 100:3 | 100:3 |
| Pot time |
30-40 mins |
30-40 mins |
30-40 mins |
30-40 mins |
30-40 mins |
30-40 mins |
30-40 mins |
30-40 mins |
30-40mins |
| Curing time | 6-8 | 6-8 | 6-8 | 6-8 | 6-8 | 6-8 | 6-8 | 6-8 | 6-8 |
| Hardness | 5±2 | 10±2 | 15±2 | 20±2 | 25±2 | 30±2 | 35±2 | 40±2 | 45±2 |
| Tear Strenght | ≥8 | ≥13 | ≥17 | ≥22 | ≥23 | ≥23 | ≥22 | ≥20 | ≥20 |
| Tensile | ≥1.5 | ≥1.9 | ≥2.1 | ≥2.5 | ≥3.0 | ≥3.5 | ≥3.5 | ≥4.0 | ≥4.0 |
| Elongation | ≥550 | ≥500 | ≥500 | ≥450 | ≥450 | ≥350 | ≥310 | ≥310 | ≥110 |
Established in 1999, Dongguan Rongxin Silicone Technology Co.,Ltd is a manufacturer and trader specialized in polymer material, development and production of silicone rubber.We are located in Tangxia dongguan, with convenient transportation access. And we have set up an office in 2012, Shenzhen Rongxingda Polymer Material Co.,Ltd. Our company main product is soap mold, candle mold, gypsum mold and plaster products, cement, concrete mold and so on. We have MSDS, ROHS, ISO certificates. All of our products comply with international quality standards and are greatly appreciated in variety of different markets through out the world.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationship with new clients around the world in the near future.
Liquid Silicone Rubber Packing
Ratio 100:3, packing Base A and Catalyst B
1kg/Set(Base A 1kg+ B catalyst 30g)
5kg/Set(Base A 5kg+ B catalyst 1.5kg)
20kg/Set(Base A 20kg+ B catalyst 6Kg)
25kg/Set(Base A 25kg+ B catalyst 7 .5kg)
200kg/Set(Base A 200kg+ B catalyst 60kg)
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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