PERMATEX 75151 Silicone Rtv Adhesive Sealant Tube

( Brand: Permatex ), ( Manufacturer Part Number: 75151 ), ( Type: Silicone Rtv Adhesive Sealant )

Review PERMATEX Clear Silicone Rtv Adhesive Sealant Oz Tube

Permatex 75151 is a high-performance, one-component **RTV (Room Temperature Vulcanizing) silicone adhesive and sealant** designed to deliver exceptional durability, flexibility, and weather resistance for a wide range of industrial, automotive, and household applications. This premium-grade product combines the reliability of Permatex s trusted brand with advanced silicone technology to form a strong, long-lasting bond that remains resilient even under extreme conditions. The sealant cures to a flexible yet durable rubber-like consistency, making it ideal for sealing gaps, filling cracks, and adhering materials where movement, vibration, or temperature fluctuations are present. Its non-sag formula ensures smooth application, while its resistance to UV rays, ozone, and environmental elements guarantees that the sealant will not degrade, crack, or lose its effectiveness over time. Whether used in automotive repairs such as sealing windshield frames, exhaust systems, or body panels or in plumbing and construction projects like waterproofing windows, roofing, or HVAC components this adhesive provides a watertight, airtight, and vibration-dampening barrier that stands up to the demands of daily use. Additionally, its ease of use makes it accessible for both professionals and DIY enthusiasts, as it can be applied with a caulking gun and cleaned up with common solvents like acetone or mineral spirits before curing. With a broad compatibility with metals, glass, ceramics, plastics, and rubber, Permatex 75151 is a versatile solution for those seeking a dependable, long-term seal that bridges the gap between functionality and longevity.

**Pros and Cons of Buying Permatex 75151 Silicone RTV Adhesive Sealant Tube**

The Permatex 75151 is a popular high-performance silicone RTV (room-temperature vulcanizing) adhesive and sealant, commonly used for automotive, industrial, and household applications. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Versatile Applications** The 75151 is a neutral-cure silicone, meaning it can bond to a wide range of materials, including metal, glass, rubber, plastic, and ceramics. This makes it suitable for automotive repairs (e.g., windshield installation, gaskets, and seals), plumbing, electronics, and general household sealing.

2. **High-Temperature Resistance** It can withstand temperatures up to **600 F (315 C)**, making it ideal for engine bay applications, exhaust systems, and high-heat environments where other adhesives would fail.

3. **Weather and UV Resistance** The sealant remains flexible and does not degrade under prolonged exposure to sunlight, moisture, or extreme weather conditions, ensuring long-term durability.

4. **Non-Conductive and Non-Reactive** Unlike some adhesives, this silicone does not conduct electricity or react with fuels, oils, or most chemicals, reducing the risk of corrosion or contamination.

5. **Easy to Apply** Comes in a convenient tube with a nozzle for precise application, and it cures at room temperature without requiring heat or pressure.

6. **Good Adhesion Strength** Once cured, it forms a strong bond that resists vibration, shock, and movement, which is crucial for automotive and mechanical applications.

7. **Non-Yellowing Formula** Unlike some silicones, this version does not yellow significantly over time, maintaining a clear or off-white appearance.

8. **Long Shelf Life** When unopened, it remains usable for an extended period (typically 1 2 years), though performance may degrade if stored improperly (e.g., in extreme temperatures).

9. **Low Odor** Compared to some other RTV silicones, it has a relatively mild odor, making it more pleasant to work with.

10. **Commercial-Grade Quality** Permatex is a trusted brand known for reliability, and this product is often used in professional settings, indicating its consistency and performance.

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### **Cons**

1. **Slow Curing Time** While it cures at room temperature, full curing can take **24 hours or more**, depending on conditions. This means parts cannot be fully stressed or exposed to water until fully set.

2. **Not for Highly Flexible Applications** While it remains flexible, it is not as elastomeric as some specialized silicone sealants (e.g., those designed for dynamic seals that stretch and compress repeatedly).

3. **Can Be Messy** Silicone RTV is thick and sticky, and any excess must be wiped away immediately before it cures, as it can be difficult to remove once hardened.

4. **Limited Bonding to Certain Plastics** Some plastics (e.g., polyethylene or polypropylene) may not adhere well without proper surface preparation (cleaning with acetone or sanding).

5. **Not a Structural Adhesive** While strong for sealing, it is not designed to carry heavy loads or replace mechanical fasteners in load-bearing applications.

6. **Requires Proper Surface Preparation** For best results, surfaces must be clean, dry, and free of oils, grease, or contaminants. Failure to prepare properly can lead to weak adhesion.

7. **Can Attach to Unwanted Surfaces** Due to its strong adhesion, it may bond to tools, hands, or nearby materials if not applied carefully, requiring immediate cleanup with silicone remover.

8. **Not Food-Safe** Unlike some food-grade silicones, this product is not approved for contact with food or beverages.

9. **Price** While reasonably priced for its quality, it may be more expensive than basic sealants for non-critical applications where durability isn t a concern.

10. **Potential for Overuse** Some users apply too much, leading to excess that can sag or create unsightly bulges, especially in vertical applications.

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### **Conclusion**

The **Permatex 75151 Silicone RTV Adhesive Sealant** is an excellent choice for applications requiring **high-temperature resistance, durability, and versatility** across multiple materials. Its ability to withstand harsh conditions, resist weathering, and bond reliably makes it a top pick for automotive work, plumbing, and industrial sealing. However, its **slow curing time, messiness, and need for careful application** may be drawbacks for users seeking faster or simpler solutions.

For most **permanent sealing needs where heat, moisture, and vibration resistance are critical**, this product delivers outstanding performance. If you need a **quick, temporary fix or a flexible sealant for dynamic applications**, you might consider alternatives like **Permatex 72000 (clear silicone) or Loctite PL 5900 (for electronics)**.

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### **Recommendation**

- You need a **long-lasting, high-temperature sealant** for automotive repairs (e.g., windshields, gaskets, exhausts).

- You require a **reliable adhesive for plumbing, electronics, or household sealing** where durability is key.

- You are working in **outdoor or high-heat environments** where other sealants would fail.

- You need a **fast-curing or removable sealant** (consider a temporary adhesive instead).

- Your application involves **frequent movement or stretching** (a more elastomeric sealant may be better).

- You are on a tight budget and the application is non-critical (a basic silicone may suffice).

**Final Verdict:** For most serious sealing needs where performance and longevity matter, the **Permatex 75151 is a highly recommended product**. Just be prepared for its **thickness, curing time, and cleanup requirements**.

Details:

Permatex Clear Silicone RTV Adhesive Sealant 75151 3 oz Tube.

part #: 75151 price

• $15.00

specifications sealantadhesivee:

• brand: Permatex
• mpn: 75151
• type: Silicone Rtv Adhesive Sealant

returns sealantadhesivee:

• policy: No Returns

shipping sealantadhesivee:

• cost: $5.77
• carrier: USPS
• service: USPS Ground Advantage
• transit: 6-10 Days
• type: Calculated
• class: Standard

offer sealantadhesivee:

• sold: 0
• best offers: True
• quantity: 1
• availability: In Stock
• started: February 14, 2026
• options: Ship-to-home

payments sealantadhesivee:

• credit card: Visa
• other
• wallet: Paypal

general sealantadhesivee:

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

seller sealantadhesivee:

• city: Delray Beach, Florida
• # reviews: 0
• rating: 0.0%

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