1. Sealant & Adhesives For Sale
  2. sku: 17908555768654633
  3. DOWSIL 19149101

DOWSIL 19149101 Silicone Sealant Tube Base 738

19149101 Dowsil Silicone Sealant 3 Oz Tube White Base 738

( Brand: Dowsil ), ( Manufacturer Part Number: 19149101 ), ( Type: Caulks, Sealants Gasket Makers Caulks Sealants ), ( Country Of Origin: Us ), ( Size: 3 Oz ), ( Color: White ), ( Weight: 0.2600 ), ( Length: 6.700 ), ( Width: 1.800 ), ( Features: Silicone Sealant, Color White, Application Hvac, Duct And Electri ), ( Battery Included: No )

Review DOWSIL Silicone Sealant Oz Tube White Base 738

The **Dow Corning 19149101 Silicone Sealant Tube** is a high-performance, professional-grade adhesive and sealant designed to deliver exceptional durability, flexibility, and weather resistance for a wide range of construction, automotive, and industrial applications. Part of Dow Corning s trusted line of **190-series sealants**, this product features a **100% silicone-based formula** that ensures long-lasting adhesion across diverse substrates, including metal, glass, wood, concrete, masonry, and most plastics, while maintaining resistance to extreme temperatures, UV exposure, moisture, and chemical corrosion. The sealant s **neutral pH and non-corrosive properties** make it ideal for use in sensitive environments, such as around electrical components, plumbing systems, or delicate materials like aluminum or copper, where traditional solvents or acidic sealants could cause degradation over time. With a **base 738 designation**, this sealant is optimized for applications requiring **high elasticity and gap-filling capability**, making it perfect for sealing joints, gaps, and seams in both stationary and moving parts, such as windows, doors, roofing, automotive body panels, and even marine applications where waterproofing and vibration resistance are critical. Its **one-component, neutral-cure technology** eliminates the need for mixing or special application tools, allowing for quick, mess-free installation with a standard caulking gun. Once cured, the sealant forms a **smooth, durable bead** that remains flexible even in sub-zero temperatures down to **-60 C (-76 F)**, ensuring it won t crack, peel, or degrade under thermal stress or mechanical strain. Additionally, the formula is **low-odor and non-staining**, making it suitable for interior applications where aesthetics and indoor air quality are concerns. Whether used in residential construction for waterproofing bathrooms and kitchens, in automotive repairs for sealing windshields or body panels, or in industrial settings for protecting equipment from environmental exposure, the **Dow Corning 19149101** delivers a reliable, long-term solution that outperforms many conventional sealants in both performance and longevity. Its compatibility with a broad range of primers and adhesives further enhances its versatility, allowing for tailored application strategies depending on the specific project requirements.

**Pros and Cons of Buying DOWSIL 738 Silicone Sealant (Part Number: 19149101)**

### **Pros**

1. **High-Quality Performance** DOWSIL 738 is a premium, neutral-cure silicone sealant designed for durability and flexibility. It adheres well to various surfaces, including metal, glass, concrete, and painted wood, making it suitable for both indoor and outdoor applications.

2. **Weather and UV Resistance** The sealant remains flexible and does not degrade under prolonged exposure to sunlight, moisture, or temperature fluctuations, ensuring long-term protection against cracking or peeling.

3. **Versatile Applications** It is ideal for sealing gaps in windows, doors, roofs, plumbing, and construction projects where a strong, waterproof bond is required.

4. **Neutral Cure** Unlike acid-cure silicones, this product does not corrode metals or damage painted surfaces, making it safer for sensitive applications.

5. **Easy Application** The tube is user-friendly, with a smooth extrusion that allows for precise application, reducing waste and ensuring clean lines.

6. **Good Adhesion to Multiple Substrates** Works effectively on non-porous surfaces like glass, metal, and plastic, as well as some porous materials when properly prepared.

7. **Low Odor** Compared to some other silicones, it has minimal fumes, making it more comfortable to use in enclosed spaces.

8. **Long Shelf Life** When unopened, it remains stable for extended periods, ensuring reliability when needed.

### **Cons**

1. **Higher Cost** As a premium product, DOWSIL 738 is more expensive than generic or lower-grade silicone sealants, which may be a consideration for budget-conscious buyers.

2. **Requires Proper Surface Preparation** Like most high-performance sealants, it performs best when surfaces are clean, dry, and free of contaminants. Improper prep can lead to poor adhesion.

3. **Not Ideal for Porous Materials Without Primer** While it adheres to some porous surfaces, additional priming may be necessary for optimal results, adding extra steps to the application process.

4. **Limited Color Options** It is typically available in clear or white, which may not suit decorative or aesthetic applications where colored sealants are preferred.

5. **Shrinks During Cure** Like most silicones, it may slightly shrink as it cures, which could affect the final appearance of the seal if not managed properly.

6. **Not Suitable for High-Temperature Applications** While it handles moderate temperature changes well, it is not designed for extreme heat (e.g., near furnaces or ovens) where specialized high-temperature sealants would be better.

7. **Professional Use May Be Needed for Complex Jobs** For large-scale or intricate projects, professional installation ensures the best results, which may incur additional labor costs.

### **Conclusion**

DOWSIL 738 is an excellent choice for those seeking a reliable, long-lasting silicone sealant for demanding applications where durability, weather resistance, and adhesion are critical. Its premium quality justifies the higher cost for projects where failure is not an option, such as in construction, plumbing, or automotive repairs. However, for smaller, less critical jobs or budget-sensitive applications, a mid-range silicone sealant may offer comparable performance at a lower price.

### **Recommendation**

**Buy DOWSIL 738 if:**

- You need a high-performance, weatherproof sealant for long-term use.

- The project involves critical applications like roofing, plumbing, or structural sealing.

- You are willing to invest in a product that minimizes maintenance and reapplication over time.

**Consider alternatives if:**

- You are working on a small, low-cost project where a generic silicone sealant would suffice.

- You require colored sealants or have specific aesthetic needs not met by clear/white options.

- Budget constraints make the premium price prohibitive, and a slightly lower-grade sealant would work for your application.

For most professional or high-stakes sealing needs, DOWSIL 738 is a strong recommendation due to its proven reliability and performance.

Details:

Electrical Boxes. Receptacles. And Enclosures. Light Industrial.

Electrical Outlet's.

part #: 19149101 price

  • $40.89

specifications sealantadhesivee:

  • brand: Dowsil
  • mpn: 19149101
  • type: Caulks, Sealants Gasket Makers Caulks Sealants
  • country of origin: Us
  • size: 3 Oz
  • color: White
  • weight: 0.2600
  • length: 6.700
  • width: 1.800
  • features: Silicone Sealant, Color White, Application Hvac, Duct And Electri
  • battery included: No

payments sealantadhesivee:

  • credit card: Discover
  • wallet: Apple-pay
  • other

seller sealantadhesivee:

  • city: USA
  • # reviews: 1329836
  • rating: 99.8%

shipping sealantadhesivee:

  • type: Fixed
  • service: Standard
  • cost: $5.00
  • transit: 5-5 Days
  • class: Standard

offer sealantadhesivee:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: February 28, 2026

general sealantadhesivee:

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

returns sealantadhesivee:

  • time: 60 Days
  • paid by: Seller
  • method: Money back
  • policy: Returns Accepted
type: caulks, sealants gasket makers caulks sealants, country of origin: us, size: 3 oz, length: 6.700, features: silicone sealant, color white, application hvac, duct and electri, battery included: no,
category: business & industrial > adhesives, sealants tapes > caulks, sealants removers > caulks sealants, color: white, weight: 0.2600, width: 1.800, sku: 17908555768654633,
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1 offer $40.89 USD
  • New. Offer #1 priced at $40.89 + $5.00 shipping estimate = $45.89* total. Electrical Boxes Light Industrial.+$5.00 shipping

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