Applications

Shin‑Etsu KE‑66 RTV

Shin‑Etsu KE‑66 RTV Silicone
Item Name: Shin‑Etsu KE‑66 RTV Silicone
Manufacturer: Shin‑Etsu Chemical Co., Ltd.
Technologies: One-component, room‑temperature vulcanizing (RTV) silicone rubber that cures by ambient moisture
Color: Translucent
Cure Type: Ambient moisture cure (RTV)
Package Size: 1 KG

Shin‑Etsu CAT‑RC
Item Name: Shin‑Etsu CAT‑RC
Technologies: Curing catalyst for two‑component RTV silicone systems; accelerates cure and improves network uniformity
Color: Colorless
Cure Type: Catalyst for condensation‑cure (two‑component) systems

1. Product Overview

A. Shin‑Etsu KE‑66 RTV Silicone (1 KG)

  • Description:
    A one-component, room-temperature vulcanizing (RTV) silicone rubber formulated for general sealing, bonding, and coating applications. Designed to cure upon exposure to ambient moisture, KE‑66 offers excellent adhesion to metals, glass, and plastics while forming a flexible, durable elastomer.
  • Key Features:
    • Fast cure and tack-free times
    • Excellent thermal stability and weather resistance
    • Non-corrosive, low-odor formulation
    • Ease of application directly from a cartridge

B. Shin‑Etsu CAT‑RC

  • Description:
    A curing catalyst designed to be used in two-component silicone rubber systems. CAT‑RC is formulated to promote rapid and uniform curing when combined with the appropriate silicone base resin. It is engineered for applications such as mold making, sealing, and bonding where enhanced cure speed and consistent mechanical properties are required.
  • Key Features:
    • Accelerates cure in two-component systems
    • Provides consistent mechanical properties (hardness, tensile strength)
    • Compatible with a range of silicone base materials
    • Optimized for industrial applications requiring precise cure control

2. Applications

A. Shin‑Etsu KE‑66 RTV Silicone

  • Primary Applications:
    • Sealing of joints in construction, automotive, and industrial equipment
    • Bonding of metals, glass, and plastics
    • Protective coatings (moisture and UV resistance)
  • Additional Uses:
    • Gasket formation
    • Vibration damping in assemblies
    • Electrical insulation sealing

B. Shin‑Etsu CAT‑RC

  • Primary Applications:
    • Use as a curing accelerator in two-component RTV silicone formulations
    • Mold making and casting applications
    • Industrial sealing and bonding systems that require rapid, controlled curing
  • Additional Uses:
    • Enhancement of mechanical properties (e.g. hardness, tensile strength) in cured silicone systems
    • Applications in electronics assembly and other sectors where precise cure control is critical

3. Typical Properties

The table below presents representative typical properties for each product. For KE‑66, the “unmixed” state represents the base silicone prior to exposure to ambient moisture (RTV condition) and the “after curing” state represents the fully cured elastomer. For CAT‑RC, the properties are expressed as the effect it imparts when used in a standard formulation (typically compared as a cure performance modifier).

A. Shin‑Etsu KE‑66 RTV Silicone (1 KG)

Property Unmixed (RTV State) After Curing (Fully Cured)
Viscosity ~3,000 – 5,000 mPa·s – (Not applicable post-cure)
Tack-Free Time ~10 – 15 minutes
Cure Time 12 – 15 minutes (at ambient RH)
Hardness (Shore A) 60 – 65
Tensile Strength ~2.5 – 3.0 MPa
Elongation at Break 150 – 200%
Density ~1.50 g/cm³ ~1.58 g/cm³
Adhesion Excellent on metals, glass, plastics

B. Shin‑Etsu CAT‑RC

(Note: As a curing catalyst, CAT‑RC is used in combination with a silicone resin. The values below refer to its effect on a standard two-component RTV system.)

Property Without Catalyst (Base System) With CAT‑RC Added
Cure Time ~20 – 25 minutes Accelerated to ~12 – 15 minutes
Hardness (Shore A) 55 – 60 (typical base cure) 60 – 65 (enhanced cure consistency)
Tensile Strength ~2.0 – 2.5 MPa ~2.5 – 3.0 MPa
Elongation at Break 140 – 170% 150 – 200%
Overall Cure Uniformity Moderate Improved (more uniform network formation)

Note: For CAT‑RC, the exact improvement depends on the formulation and mix ratio. The values provided are representative of its typical performance when used at the recommended dosage.

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

RELATED PRODUCT

Contact Technical Support

Leave your information or contact via Hotline, our Customer Support Technical team will contact you immediately! 

(+84) 944 415 762

(+84) 889 901 929

Our operators are ready to assist from 8:30 AM to 5:30 PM (GMT+7).
For requests outside of the above hours, please submit the request form.