BJB Enterprises TC-5041 A/B
- Chemical Family
- Silicones
BJB Enterprises TC-5041 A/B is a high tear strength, addition/platinum, room temperature curing silicone rubber designed for mold making, encapsulation applications, pressure pads, gaskets, and various types of parts. It is also used to make molds for casting low melting metals. With the use of talc powder as an interface the TC-5041 A/B has been used with cast metal temperatures running 650°F (344°C). With the ability to withstand high temperatures the TC-5041 A/B works very well as a mask for metal spraying and welding operations.
Properties
- Physical Form
- Liquid
- Paste
Product families
Applications
- Industrial — Other Industrial Applications
- Other Industrial Applications
- Tooling & Moldmaking
Product Families
- Silicone Elastomers
Other characteristics
- End Uses
- Gaskets, Mold Making
- Features
- Good Tear Strength, Heat Resistance
- Polymer Name
- Silicone Elastomer
- Tear Strength
- 30.625 - 30.625 kN/m
- Processing Methods
- Casting
- Markets
- Industrial
- Storage
Store ambient temperatures, 65-80°F (18-27°C). Unopened containers will have a shelf life of 6 months from date of shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
- Appearance
- Dusty Blue
- Cure
- Air Dry
- Technology
- Elastomers
- Packaging Type
- Drums
- Safty Precaution
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.
- Application
Certain materials will cause inhibition or neutralization of the curing agent. These materials are sulfur containing and organometallic salt containing compounds such as organic rubbers and many condensation cured RTV silicone rubbers. Inhibition may easily be determined by brushing a small quantity of TC-5041 over a localized area of the surface to be reproduced. If the TC-5041 is gummy or uncured after the curing time, then you know the mold surface is acting as an inhibitor. Molds made from wood, plaster, metal or plastic should not cause inhibition if they are clean. To insure against possible problems, it is advisable to seal the surface with RF-5215 or other appropriate sealer. Contact BJB's Tech Sales for additional information.
- Material Features
- Good Tear Strength
- Heat Resistance
- Plastics and Elastomers End Uses
- Gaskets
- Mold Making
- Plastics and Elastomers Processing Methods
- Casting
Technical data
Table 1 of 2
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Hardness | 35 - 45 | Shore A | ASTM D 2240-04e1 |
| Density | 1.38 | g/cc | ASTM D 792-00 |
| Cubic | 21 | Inches per Pound | — |
| Tensile Strength | 740 | psi | ASTM D 412-98a (2002)e1 |
| Elongation | 457 | % | ASTM D 412-98a (2002)e1 |
| Tear Strength | 175 | pli | ASTM D 624-00e1 Die B |
| Coefficient of Thermal Expansion | 13.87 x 10⁻⁵ | in/in/°F | ASTM E831 |
| Shrinkage Linear | Nil | in/in | ASTM D2566 (1” depth) |
Table 2 of 2
14 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Mix Ratio by weight (Part A) | 100 | — | — |
| Mix Ratio by volume (Part A) | 100 | — | — |
| Specific Gravity (77°F (25°C), Part A) | 1.43 | — | — |
| Color (Part A) | Off White | — | — |
| Viscosity (77°F (25°C), Part A) | 71000 | — | Brookfield |
| Mixed Viscosity (77°F (25°C)) | 26000 | cps | Brookfield |
| Work Time (100g mass, 77°F (25°C)) | 60 minutes | — | — |
| Gel Time | 90 minutes | — | — |
| Demold Time (77°F (25°C)) | 6 - 8 hours | — | — |
| Mix Ratio by weight (Part B) | 10 | — | — |
| Mix Ratio by volume (Part B) | 14 | — | — |
| Specific Gravity (77°F (25°C), Part B) | 1.04 | — | — |
