Tin Cure Silicone Rubber T-Flow series (High strength grade, most popular)
T-Flow series Tin Cure Silicone for Mold is a general-purpose RTV silicone rubber which exhibits excellent tear strength, long library life, and accurate detail reproduction.
T-Flow series Tin cure silicone for mold is a condensation cured silicone (tin catalyzed ) It is used to make rubber molds that can be used to cast polyurethanes, epoxy’s, polyester’s, cement, concrete, soap, wax, plaster, etc..
It is easy to mix and de-air, and will cure at room temperature over virtually any surface. T-Flow Series Tin cure silicone for mold is extremely useful for applications where superior physical properties are required.
Vacuum degassing mixed material using a vacuum pump and chamber to remove entrapped air is recommended.
1, Features of T-Flow series Silicone for Mold
- High flowability, pourable
- High strength
- High elasticity, for easy removal of, complex replica parts
- Less shrinkage
- Outstanding release properties
2, Typical Uses & Casting Materials
T-Flow series Silicone for Mold is designed for molding polyurethanes, polyester resins, plasters, waxes, soaps, paraffin, gypsum, concrete, liquid plastics, as well as for the production of souvenirs, sculptures, figurines and other handicrafts
Normally, different size of silicone mold should be select according to different product’s features.
For example :
- For products size ( within 20 cm ) :
With fine designs, soft silicone is suitable, suggest 10-20 shore A. - For products size ( 20cm-80cm ) :
With fine designs, suggest 20-25 shore A.
With simple designs, suggest 25-30 shore A. - For products size ( 80cm-150cm ) :
With fine designs, suggest 25 shore A.
With simple designs, suggest 30-35 shore A. - For products size ( more than 150cm ) :
With fine designs, suggest 25-28 shore A.
With simple designs, suggest 30-35shore A.
Viscosity testing of T-Flow series Silicone for Mold
Tear strength testing of T-Flow series Silicone for Mold
3, Instruction
- Stir Part A well before use, shake Part B catalyst container well before use.
- Weigh 100 Part A to 2~3 Part B using an accurate scale and a clean mixing container.
- Vigorously mix and scrape walls of the container, continue mixing until uniform.
- Place the mixture in a vacuum chamber & degass. If without a chamber, Pour the mixture 2-3 inches above the pattern in a thin stream.
- Allow the silicone to cure 2-4 hours and demold with care.
Complete guide for how to use RTV-2 tin cure silicone rubber
4, Important tips
- Before use, read the operation manual, please.
- Before large production, a small-scale test is recommended.
- Mixing ratio must be accurate, recommend mixing ratio is A:B=100:2~3(by weight), If curing too fast, please reduce the ratio of catalyst to 1% or less, then Stir Part A and Part B completely.
- Use a vacuum to de-gas this product before use under pressure. Vacuum silicone for 2-3 minutes
- This product has a limited shelf life. Use it as soon as possible after opening.
- Always tightly reseal containers after use. Air, moisture or other contamination causes a reduction in reactivity over time.
5, Package
6, Storage & shelf-life
12 months in unopened containers when properly stored.
Super-Silicon cannot guarantee the shelf life of opened or repackaged units.
Recommended storage temperature range: 10°C – 25°C. SuperSilicon™ should be stored in closed containers out of direct sunlight and away from direct sources of heat. Always tightly reseal containers after use. Air, moisture or other contamination causes a reduction in reactivity over time.
| Products | Description |
|---|---|
| Thickening agent | For Thickening silicone for brushable application |
| Fumed silica | A fine powder that can be added to polyurethane and silicone liquid rubber to thicken them for brush-on/lay-up applications. |
| Tin Cure Silicone Accelerator | For speed up curing time |
| Heat resistance additive | For resisting chemical/heat burnout |
| Pigments | For coloring silicone |
| Fabric | Reinforcement Material for silicone molds |
| Release agent |
What's the difference between T-Pro series VS. T-Flow series VS. others
Description |
T-Pro series |
T-Flow series |
Other suppliers (RTV-6) |
|---|---|---|---|
|
Raw materials use
|
Global top brand supplier Blustar silicone fluid, quality more stable
|
Global top brand supplier Blustar silicone fluid, quality more stable
|
China general supplier
|
|
Viscosity
|
30000-40000 cps fumed silica make the viscosity high
|
23000-25000 cps
|
28000-35000 cps
|
|
Reinforced filler
|
85% fumed silica+ 15% Precipitated silica (fumed silica is the best reinforced filler)
|
100% Precipitated silica
|
Fumed Silica 0%, + Precipitated silica 60%, + Quartz powder 30%, + Titanium dioxide 10%.
|
Mold Making Materials COMPARISON
Tin cure silicone VS. Platinum cure silicone
Type |
Advantages |
Disadvantages |
Casting materials |
|---|---|---|---|
|
Tin-Cured Silicone
|
High strength, Cost-effective
|
Shrinks on cure (~0.3%), Cured rubber has limited storage life, Not food-grade
|
Most materials, especially resins, foams, plaster, wax, concrete etc.
|
|
Platinum-Cured Silicone
|
No shrink on cure, Cured rubber has long storage life, Excellent chemical resistance & age resistance, Food-grade skin safe, 1:1 simple mix |
Cure inhibited by some materials, a slight expensive than tin cure silicone
|
Most materials, especially resins, foams, plaster, wax, concrete etc. and some low-melt metals and food grade products mould.
|