Tin Based Condensation Cure Pourable Liquid RTV-2 Silicone Rubber for Making Molds
Introduction of Liquid RTV-2 Silicone Rubber for Mmaking molds
RTV-2 is a two-component Room-Temperature-Vulcanizing (RTV-2) silicone rubber. Depending on its curing mechanism, two types of RTV-2 are available: "condensation" cure type and "addition" cure type. Generally, RTV-2 Silicone Rubber is a kind of two-component material. The RTV-2 silicone rubber is made up of Part A base silicone and Part B curing agent. The Part A base silicone and Part B CA curing agent can cure at room temperature by a condensation reaction, after full cure, it become a cured silicone mold. The silicone mold can be cast the following materials for reproduction: Plaster, polyurethane, PU, GRC, cement, resin, polyester, wax etc...
Specifications of MC RTV-2 Silicone Rubber
Room Temperature Vulcanization
Equipped with REACH certificate
Professional technician with rich experience
4% catalyst offers for free of charge
Silicone hardness range: 10-60 shore A
High duplicating silicone molds
Characteristics of RTV-2 Silicone Rubber for Mould Making
1. Good flow ability and long working time
2. Medium hardness
3. High tear and tensile strength
4. Easy de-mould from complex replica parts
5. Acid and alkali-resistance
6. Low linear shrinkage
Applications of RTV-2 Silicone Rubber for Mould Making
RTV-2 Silicone Rubber can be used for artificial stone mold making. For example MCSIL-2066 and MCSIL-2088 silicone.
RTV-2 silicone rubber can be applied in candle and soap mold making, such as MCSIL-215 and MCSIL-218 silicone.
RTV-2 silicone rubber can be used for plaster mold making, such as MCSIL-2025, MCSIL-H25 and MCSIL-2030 silicone.
RTV-2 silicone rubber can be applied in the field of shoe sole moldmaking, for example, MCSIL-S20 and MCSIL-S25 silicone.
RTV-2 silicone rubber can be used for prototyping and electronic potting.
Procedures of RTV-2 Silicone Rubber for Mould Making
1. Make sure the surface of the original is clean and free of loose material.
2. Weight 100 Part A base and 2 parts of CA30 Curing Agent in a clean container.
3. Stir Part A base silicone before use thoroughly, as filler separation may occur upon prolonged storage.
4. Mix Part A and Part B evenly until the CA30 completely dispersed in the base.
5. Pour the mixed Part A base silicone and CA-30 curing agent as soon as possible onto the original
6. De-mold after 24 hours, it is will improve the replicate times of silicone mold.
Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 mins under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.
Storage and shelf time of RTV-2 Silicone Rubber for Mould Making
When the silicone rubber is stored at or below 30C (85F) in the original unopened containers, RTV2 Silicone Base and CA30 Curing agent have a usable life of 12 months from the date of production. After 12 months, please use a stirring mill to stir the Part A silicone for some minutes, then the silicone can be use again, without any influence to the characteristics.
Package of quid RTV-2 silicone rubber
Part A base silicone: 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle, 1kg/bottle and 10kg/bottle
| Item |
Color |
Hardness |
Suitable |
Method |
Patterns for casting |
Some Applications |
| MCSIL2010 |
white |
10 shore A |
small and detailed mold |
pouring and brushing way |
PU, resin, concrete,sculpture , architectural elements ,plaster , cements ,gypsum ,polyester,epoxy, polyurethane, wax |
shoe mold making , candle and soap mold making , sculptures , gifts and crafts production , decorations articles , pu foam , prototypes, household furnitures . |
| MCSIL2015 |
white |
15 shore A |
small and detailed mold |
| MCSIL2020 |
white |
20 shore A |
small or middle sized |
| MCSIL2025 |
white |
25 shore A |
middle sized |
| MCSIL2030 |
white |
28-30 shore A |
big size mold |
| MCSIL2028 |
white |
27-28 shore A |
middle sized or big mold |
| MCSIL2038 |
white |
35-38 shore A |
large mold |
|
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