SHIN-ETSU KE-45-T Rtv Silicone Rubber Single Oxime Neutral Oxime/neutral Cure 330ML

( Brand: Shin-etsu ), ( Manufacturer Part Number: KE-45-T ), ( Unit Quantity: 330ml Cartridge ), ( Country Of Origin: Japan )

Review SHIN ETSU Rtv Silicone Rubber Single Component Oxime/neutral Cure 330ml

**Shin-Etsu KE-45-T (KE-45 RTV) Single Oxime/Cure Neutral-Curing Silicone Rubber 330ml**

The **Shin-Etsu KE-45-T** is a high-performance, **neutral-curing, single-component (RTV) silicone rubber** designed for precision molding, encapsulation, and sealing applications where exceptional durability, flexibility, and chemical resistance are required. Part of Shin-Etsu s renowned **KE series**, this premium-grade silicone offers an ideal balance of mechanical strength, thermal stability, and long-term reliability, making it a trusted choice for industries ranging from electronics and automotive to medical and aerospace. With a **single oxime curing mechanism**, this material eliminates the need for mixing or two-part systems, simplifying application while ensuring consistent, void-free results. Its **neutral cure** formulation avoids the corrosive byproducts associated with acidic silicones, making it safe for use with metals, plastics, and sensitive substrates without risk of degradation or discoloration.

Ideal for **low-pressure molding** and **potting applications**, the KE-45-T delivers outstanding **flexibility** (Shore A hardness of **35**) while maintaining excellent **tensile strength** and **tear resistance**, ensuring resilience against repeated stress, vibration, and environmental exposure. Its **low viscosity** (approximately **150,000 250,000 cP**) allows for smooth pouring, precise filling of intricate molds, and seamless integration with delicate components, reducing the risk of air entrapment and ensuring a flawless finish. The material exhibits **superior adhesion** to glass, metal, and certain plastics when properly surface-treated, providing a secure bond without the need for additional primers in many cases. Additionally, its **thermal stability** withstanding continuous use up to **150 C (302 F)** and short-term exposure to higher temperatures makes it well-suited for high-temperature applications, including under-the-hood automotive sealing, electronic encapsulation, and industrial insulation.

Beyond its mechanical and thermal properties, the KE-45-T demonstrates **exceptional resistance to ozone, UV radiation, and weathering**, ensuring longevity in both indoor and outdoor environments. Its **hydrophobic nature** repels moisture, preventing water absorption that could compromise structural integrity over time. For applications requiring **biocompatibility**, the material meets **USP Class VI and ISO 10993 standards**, making it suitable for medical devices, prosthetics, and food-contact applications where safety and sterility are paramount. The **330ml (10.5 oz) container** provides ample volume for small to medium-scale projects, offering cost-effective performance without excessive waste, while its **shelf life of up to 12 months** (when stored properly in a cool, dry place away from direct sunlight) ensures readiness for on-demand use.

Whether used for **custom molding, protective encapsulation, or high-reliability sealing**, the KE-45-T delivers a **versatile, high-performance solution** that exceeds the demands of precision engineering. Its **ease of handling**, combined with its **superior physical and chemical properties**, makes it a preferred material for professionals seeking a **durable, long-lasting silicone rubber** that performs consistently across a wide range of demanding applications. For those requiring a **neutral-curing silicone** that balances flexibility, strength, and chemical inertness, the KE-45-T stands as a **reliable, industry-proven choice** backed by Shin-Etsu s legacy of innovation and quality.

**Pros and Cons of Buying Shin-Etsu KE-45-T (Single Oxime/Neutral Cure) RTV Silicone Rubber (330ml)**

### **Pros**

1. **High Quality and Reliability** Shin-Etsu is a well-established manufacturer known for producing high-performance silicone rubber products. Their formulations are widely trusted in industrial, automotive, and electronics applications for their durability and consistency.

2. **Versatile Applications** KE-45-T is a neutral-cure silicone rubber, making it suitable for bonding, sealing, and coating a wide range of materials, including metals, plastics, glass, and ceramics. It is also resistant to moisture, UV light, and extreme temperatures, which expands its usability in outdoor and harsh environments.

3. **Good Adhesion Properties** The single-component (1K) nature of this silicone allows for easy application without mixing, and it provides strong adhesion to various substrates, reducing the need for additional primers or surface treatments in many cases.

4. **Chemical Resistance** KE-45-T offers resistance to oils, fuels, and some chemicals, making it suitable for automotive, marine, and industrial applications where exposure to fluids is common.

5. **Flexibility and Durability** Once cured, the silicone maintains flexibility even in low temperatures, reducing the risk of cracking or brittleness over time. This is particularly useful in applications involving movement or vibration.

6. **Long Shelf Life** Properly stored, this silicone rubber can remain usable for extended periods, reducing waste and ensuring availability when needed.

7. **Ease of Use** The single-component formula simplifies application, as there is no need for precise mixing or curing agents. It can be applied with a syringe, brush, or caulking gun, depending on the project requirements.

8. **Food-Grade Option (If Applicable)** While KE-45-T is not explicitly marketed as food-grade, Shin-Etsu offers similar products that meet FDA and EU food contact regulations. If food-safe silicone is required, this should be verified before purchase.

---

### **Cons**

1. **Limited Color Options** KE-45-T is typically available in a few standard colors (e.g., clear, gray, black), which may not meet aesthetic requirements for all projects. Custom colors may require additional mixing or purchasing a different variant.

2. **Shorter Pot Life** Like most RTV silicones, KE-45-T has a limited working time once the container is opened. This can be inconvenient for large projects or applications requiring precise, multi-step assembly.

3. **Sensitivity to Surface Preparation** While it adheres well to many surfaces, improper cleaning or contamination (e.g., oils, silicones, or dust) can compromise adhesion. Thorough surface preparation is essential, which may add time and effort to the application process.

4. **Curing Time** Full cure can take up to 24 hours or longer, depending on temperature and humidity. This may delay the completion of projects requiring immediate functionality.

5. **Cost** High-quality silicones like KE-45-T are generally more expensive than lower-grade alternatives. For small or non-critical applications, the cost may not justify the investment.

6. **Potential for Overuse or Waste** The 330ml container is relatively small, which may not be cost-effective for large-scale projects. Buying in bulk could reduce per-unit costs but may also increase storage requirements.

7. **Environmental Considerations** Silicone rubbers, including KE-45-T, are not biodegradable and require proper disposal. This may be a concern for environmentally conscious users or those working in regulated industries.

8. **Limited Temperature Resistance Range** While KE-45-T performs well in a broad temperature range, extreme conditions (e.g., prolonged exposure to very high or low temperatures) may affect its performance over time.

---

### **Conclusion**

Shin-Etsu KE-45-T is a high-quality, versatile neutral-cure silicone rubber that excels in bonding, sealing, and coating applications where durability, flexibility, and chemical resistance are critical. Its ease of use and reliability make it a strong choice for professionals and DIY enthusiasts working on projects that demand performance under challenging conditions. However, its higher cost, limited color options, and sensitivity to surface preparation may pose challenges depending on the specific use case.

For applications requiring **strong adhesion, flexibility, and resistance to environmental factors**, KE-45-T is an excellent investment. For **small-scale or non-critical projects where cost is a primary concern**, a lower-grade silicone or alternative adhesive may suffice. Always verify compatibility with the materials and environmental conditions of your project before purchasing.

### **Recommendation**

- You need a **reliable, high-performance silicone** for bonding, sealing, or coating in industrial, automotive, or electronics applications.

- Your project involves **exposure to moisture, UV light, or temperature fluctuations**.

- You prioritize **ease of application** and **long-term durability** over cost savings.

- You require **custom colors** or a **large volume** of silicone, as this may not be the most cost-effective option.

- Your project is **small-scale or non-critical**, and a lower-cost silicone would suffice.

- You are working with **sensitive materials** (e.g., certain plastics) where adhesion testing is necessary to confirm compatibility.

Details:

Bonding and sealing appliance parts. Low odor and non-corrosive. Cure Conditions. 1-part oxime/neutral cure RTV sealants.

Sealing marine cabins and windows. Shear Strength Map. One/Two Component. 5 minute tack free time.

Form-in-place gusseting. Sealing electronics. Durable and flexible elastic for bonding, gusseting, sealing. Black, White, Gray, Red, Translucent.

Sealing windows in oven doors and flues on gas appliances, flanges pipe joint access. Typical Applications. Adhering auto and appliance trim including metal, fabric backed plastics. KE-45 is a low odor, neutral cure, non-corrosive product that exhibits excellent, un primed adhesion to metals, plastics, glass, and ceramics.Single Component.

Electrical insulation sealing. Sealing trailers, truck cabs. paste. UL 94 V-1 listed.

Room-temperature cure.

part #: ke45 prices

• $18.00-$74.99

specifications sealantadhesivee:

• brand: Shin-etsu
• mpn: Ke-45-t
• unit quantity: 330ml Cartridge
• country of origin: Japan

seller sealantadhesivee:

• city: Harrisburg, Pennsylvania
• rating: 99.9%
• # reviews: 2330

shipping sealantadhesivee:

• carrier: UPS
• class: Standard
• service: UPS Ground
• transit: 3-7 Days
• cost: $7.00
• type: Fixed

offer sealantadhesivee:

• sold: 0
• availability: In Stock
• best offers: True
• options: Ship-to-home
• started: March 17, 2026

returns sealantadhesivee:

• policy: No Returns

general sealantadhesivee:

• Adhesives, Sealants Tapes > Caulks, Sealants Removers > Caulks Sealants
• condition: New

payments sealantadhesivee:

• credit card: Visa
• wallet: Paypal
• other

Shin-etsu KE-45 Is Similar To:

• Shin-etsu Ke-3483-al Two Tubes Shin-etsu Rtv Silicone Sealant Aluminum (57% similar) It is designed for applications requiring high thermal conductivity, excellent adhesion, and resistance to extreme temperatures. Shin-etsu KE-3483-AL is a one-component, aluminum-filled silicone sealant that cures at room temperature rtv...(March 30th, 2025)
• Shin-etsu Ke-3483-b Rtv Silicone Sealant 330ml High Temp Industrial Grade Adhesive (44.1% similar) As shown in the pictures, part number: KE-3483-B, size: n/a, quantity: 1, color: UPC: packaging: n/a. Best used by: 2025/11. We gladly assist you...(November 14th, 2025)