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BJB Enterprises TC-5050-AB

BJB Enterprises TC-5050-AB is a room temperature, addition/platinum 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 into. With the use of talc powder as an interface the TC-5050-AB has been used in production with cast metal temperatures running 650°F (344°C) and has been subject to temperatures up to 850°F (454°C)for making a limited number of casts. With the ability to withstand high temperatures the TC-5050-AB works very well as a mask for metal spraying and welding operations.

Polymer Name: Silicone Elastomer

Processing Methods: Casting

End Uses: Gaskets, Mold Making

Tear Strength: 15.225 - 15.225 kN/m

Technical Data SheetSafety Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Silicones

Polymer Name

Silicone Elastomer

Technologies

Elastomers

Product Families

Elastomers — Specialty Elastomers

Silicone Elastomers

Applications & Uses

Markets

Industrial

Applications

Industrial — Chemical & Industrial Manufacturing

Other Industrial Applications,

Tooling & Moldmaking

Industrial — Other Industrial Applications

Cure Method

Air Dry

Plastics & Elastomers End Uses

Gaskets,

Mold Making

Plastics & Elastomers Processing Methods

Casting

Appliation Details

INHIBITION:

Certain materials will cause inhibition or neutralization of the curing agent. These materials are sulfur 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-5050over a localized area of the surface to be reproduced. If the TC-5050 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’sTech Sales for additional information.

Properties

Physical Form

Liquid,

Paste

Appearance
Blue
Physical Properties
ValueUnitsTest Method / Conditions
Hardness45 - 55Shore AASTM D2240
Cubic22.2Inches per Pound-
Tensile Strength620psiASTM D412
Elongation325%ASTM D412
Tear Strength87pliASTM D624 Die B
Coefficient of Thermal Expansion16.5 x 10⁻⁵in/in/°FASTM E831
Shrinkage LinearNilin/inASTM D2566 (1” depth)
Typical Properties
ValueUnitsTest Method / Conditions
Mix Ratio by weight (Part A)100--
Mix Ratio by volume (Part A)100--
Specific Gravity (77°F (25°C), Part A)1.23--
Color (Part A)Off White--
Viscosity (77°F (25°C), Part A)121400-Brookfield
Mixed Viscosity (77°F (25°C))90000cpsBrookfield
Work Time (100g mass, 77°F (25°C))30 minutes--
Gel Time60 minutes--
Demold Time (77°F (25°C))24 hours--
Heat Cure (150°F (66°C)2 - 4 hours--
Mix Ratio by weight (Part B)10--
Mix Ratio by volume (Part B)12--
Specific Gravity (77°F (25°C), Part B)0.99--
Color (Part B)Blue--
Viscosity (77°F (25°C), Part B)490--

Safety & Health

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.

Packaging & Availability

Packaging Type

Drums

Storage & Handling

Storage

Store ambient temperatures, 65-80°F (18-27°C). Unopened containers will have a shelf life of 12months from date of shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.