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Dow SILASTIC RTV-3120 Silicone Rubber Base Red 4 kg Pail - RTV-3120 BASE 4KG

$790.05
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SKU: RTV-3120 BASE 4KG
California prop 65
Description

Description

Dow SILASTIC RTV-3120 Base Red is a silicone rubber base supplied in a 4 kg pail. It is designed for room-temperature vulcanizing applications and serves as the base component for producing flexible RTV silicone rubber. The material is intended for mold-making, potting, and encapsulating applications, offering ease of mixing and pouring and reliable cured rubber performance.

Key Features

  • RTV Silicone Rubber Base: Used to produce flexible RTV silicone rubber for various applications.
  • Red-Colored Base Component: A red-colored base for easy identification and consistency in mixing.
  • Supplied in a 4 kg Pail: Provides a convenient amount for regular use and larger projects.
  • Room-Temperature Cure: Cures at room temperature when used with the appropriate catalyst for ease of use.
  • Low-Viscosity Base: Ensures easy mixing and pouring, making it user-friendly in mold-making applications.
  • Produces Flexible Cured Silicone Rubber: Offers excellent flexibility for mold-making and potting applications.
  • Suitable for Mold-Making and Encapsulation: Ideal for detailed mold reproduction and protecting electrical components.

Applications

  • Mold Making: Perfect for creating precise, flexible molds.
  • Potting of Components: Ideal for potting electrical components to provide protection.
  • Encapsulation of Electrical or Electronic Parts: Suitable for encapsulating sensitive parts for electrical safety.
  • General RTV Silicone Rubber Fabrication: Used in various RTV silicone rubber applications requiring flexibility and durability.

Benefits

  • Easy-to-Process Base: Facilitates straightforward mixing and pouring of RTV silicone rubber systems.
  • Supports Detailed Mold Reproduction: Ensures accuracy and clarity in mold-making applications.
  • Flexible Cured Properties: The cured silicone rubber absorbs mechanical stress, making it ideal for flexible applications.
  • Versatile Use in Mold-Making and Potting: Suited for a broad range of mold-making and potting applications, enhancing product reliability and performance.

Product Specs

  • Typical Use: Potting and encapsulating electrical/electronic products; mold making
  • Brand: SILASTIC
  • Chemical Composition: Silicone
  • Color: Red
  • Components: 2 parts
  • Dielectric Strength: 418 V/mil
  • Elongation: 128%
  • Flash Point: >100 °C
  • Hardness: ≥53 A
  • Service Temperature: -55 to 300 °C
  • Specific Gravity: 1.48 @ 25 °C
  • Tensile Strength: 582 psi
  • Viscosity: 13,000 to 40,000

Categories

  • Silicone Rubber
  • RTV Silicone Materials
  • Mold-Making Supplies
  • Potting & Encapsulation Products
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FAQs

What kind of silicone rubber is RTV-3120, and what is it used for?

RTV-3120 is a two-part, condensation-cure, room-temperature-vulcanizing (RTV) silicone rubber base intended for mold-making, potting, encapsulation, and general silicone casting applications. It cures into a flexible rubber suitable for detailed mold reproduction and encapsulation.

What are the mechanical and thermal properties of cured RTV-3120 silicone rubber?

When cured, RTV-3120 exhibits a service temperature range from –55 °C to up to 300 °C, elongation of around 128%, Shore A hardness ~56, tensile strength ~582 psi, and good dielectric strength, making it suitable for parts that must withstand mechanical stress, thermal variation, or encapsulate electronic/electrical components.

How is RTV-3120 mixed and cured?

RTV-3120 must be mixed with a compatible catalyst. A typical mix ratio is 10:1 (base to catalyst) by weight. Once mixed, the low-viscosity base allows easy pouring, and the silicone cures at room temperature, even for thick sections. Depending on the catalyst used, cure times and demold times vary.

What types of projects or applications is RTV-3120 best suited for?

It is ideal for mold making (castings, prototypes), encapsulation or potting of electrical/electronic assemblies, vibration- or shock-absorbing rubber parts, and general silicone fabrication where flexible, heat-resistant rubber is needed.

Are there any special processing steps or precautions when using RTV-3120?

Yes. Before mixing, the base should be stirred as fillers may settle. When mixing with a catalyst, avoid over-vigorous mixing (to prevent air entrapment). For best results, especially for dense castings or encapsulation, vacuum degassing is recommended if possible. Use appropriate release agents when molding if needed.