DOW CORNING 3104087 Dowsil Sealant Oil 3-0115 10.3

( Brand: Dow Corning ), ( Manufacturer Part Number: 3104087 ), ( Model: 3-0115 ), ( Product Form: Paste ), ( Specific Sealing Application: General Purpose ), ( Color: Gray ), ( For Material Type: Metal ), ( Full Cure Time: 1 Day ), ( Cure Type: Room Temperature ), ( Hardness: Shore A50 ), ( Minimum Operating Temperature: 20 F ), ( Standards: Astm ), ( California Prop 65 Warning: This Product Contains A Chemical Known To The State Of California To Cause Birth Defects Or Other Reproductive Harm. ), ( Type: Gakset Maker ), ( Working Time: 10 Min ), ( Unit Type: Fl Oz ), ( Unspsc: 31201606 ), ( Features: Low Odor; Non-corrosive ), ( Maximum Operating Temperature: 120 F ), ( Chemical Base: Alkoxy Rtv Silicone ), ( Unit Quantity: 10.31 ), ( Resistance Properties: Oil Resistant ), ( Country Of Origin: United States )

Review DOW CORNING Dowsil Gray Automotive Sealant 10.3 Oz Oil Resistant

Dow Corning s **3104087 DOWSIL 3-0115 Silicone Sealant** is a high-performance, one-component, neutral-cure silicone sealant designed to deliver exceptional adhesion, durability, and flexibility across a wide range of applications. Engineered for both professional and DIY use, this premium sealant features a **100% silicone polymer formulation** that ensures outstanding resistance to weathering, UV exposure, temperature fluctuations, and environmental contaminants, making it ideal for both indoor and outdoor projects. With a **neutral cure mechanism**, it eliminates the risk of corrosion or discoloration often associated with acidic or solvent-based sealants, preserving the integrity of metals, plastics, and painted surfaces. The sealant s **10.3 oz (330 mL) tube** provides ample coverage for medium to large-scale applications, such as sealing windows, doors, roof joints, plumbing fixtures, and gaps in masonry, tile, or metalwork, where a reliable, long-lasting bond is essential. Its **high tensile strength and elongation properties** allow it to accommodate structural movement without cracking, ensuring a watertight and airtight seal that maintains its performance for years. Additionally, the sealant s **non-sag formula** ensures smooth application, while its **low odor and fast return-to-service time** minimize disruption during installation. Whether used in construction, automotive repairs, or home improvement, DOWSIL 3-0115 offers a versatile, low-maintenance solution that combines superior adhesion with ease of use, making it a trusted choice for professionals and DIY enthusiasts alike.

**Pros and Cons of Buying Dow Corning 3104087 (DOWSIL 3-0115 Sealant, 10.3 oz)**

### **Pros**

1. **High-Quality Performance** Dow Corning is a well-known brand in the silicone sealant industry, offering reliable adhesion, flexibility, and durability. The 3-0115 formula is designed for general-purpose sealing, making it suitable for indoor and outdoor applications, including bathrooms, kitchens, and around windows.

2. **Versatile Application** This sealant works well on various surfaces, including glass, metal, wood, masonry, and painted surfaces (after proper preparation). It is also resistant to moisture, UV rays, and temperature fluctuations, making it ideal for both indoor and outdoor use.

3. **Easy to Use** The 10.3 oz cartridge is convenient for small to medium-sized projects, and the sealant has a smooth, consistent application with minimal sagging. It cures to a clear, flexible finish that blends seamlessly with most surfaces.

4. **Long-Lasting and Weather-Resistant** The sealant remains flexible and does not crack or degrade easily under normal environmental conditions, providing long-term protection against leaks and drafts.

5. **Non-Yellowing Formula** Unlike some silicone sealants that yellow over time, the 3-0115 maintains a clear appearance, which is important for aesthetic applications like around mirrors or glass.

6. **Good Adhesion** It bonds well to a variety of materials, ensuring a secure seal that resists separation over time.

7. **Easy Cleanup** Excess sealant can be wiped off with a damp cloth or solvent (like acetone) before it cures, reducing mess during application.

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### **Cons**

1. **Higher Cost Compared to Alternatives** Dow Corning products are premium-priced, and while the quality justifies the cost for many users, budget-conscious buyers may find cheaper generic or brand-name alternatives that offer similar performance.

2. **Requires Proper Surface Preparation** Like most high-quality sealants, the 3-0115 needs clean, dry, and properly primed surfaces for optimal adhesion. Skipping preparation steps can lead to poor bonding and seal failure.

3. **Not Ideal for Extreme Conditions** While it handles typical weather well, it may not perform as reliably in extreme temperatures (e.g., prolonged exposure to freezing or scorching heat) without proper surface treatment.

4. **Limited Color Options** This specific product is clear, which works well for transparency but may not be suitable for projects requiring colored sealants (e.g., decorative or contrast applications).

5. **Cartridge Size May Be Insufficient for Large Projects** The 10.3 oz cartridge is best for small to medium jobs. Larger projects may require multiple cartridges, increasing cost and effort.

6. **Slightly Slower Cure Time** Compared to some fast-curing sealants, the 3-0115 may take a few hours to fully cure, which could slow down workflow for time-sensitive projects.

7. **Potential for Overuse or Waste** Beginners may accidentally overapply the sealant, leading to excess waste or uneven beads that require trimming, which can be frustrating.

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### **Conclusion**

Dow Corning 3104087 (DOWSIL 3-0115) is a high-quality, versatile silicone sealant that excels in durability, adhesion, and weather resistance. It is an excellent choice for both DIY enthusiasts and professionals working on projects where reliability and aesthetics matter. However, its premium pricing and the need for careful surface preparation may be drawbacks for some users. If you prioritize long-term performance and ease of use, this sealant is a strong recommendation. For smaller budgets or simpler projects, exploring alternative brands with similar properties could be a cost-effective alternative.

### **Recommendation**

- You need a reliable, long-lasting sealant for indoor/outdoor use.

- You are working on projects where appearance and durability are critical (e.g., bathrooms, windows, or around fixtures).

- You are willing to invest in a premium product for peace of mind.

- You are on a tight budget and are willing to compromise slightly on brand reputation.

- You are working on a very large project where multiple cartridges would be needed.

- You prefer faster curing times or specific color options not offered by this product.

For most users seeking a balance of quality and performance, Dow Corning 3104087 is a highly recommended choice. Always follow the manufacturer s instructions for best results.

Details:

Exhibits excellent un primed adhesion to properly prepared surfaces of metals and many plastics. Provides low oil foaming properties when in contact with automatic transmission fluids and engine oils. Where immediate pressure leak testing is required. Benefits: Provides an seal that is resistant to most automotive power train fluids.

Engine and transmission oil pans axle cover seals. One-part, self-priming, non-corrosive, alkoxy-cure, RTV silicone rubber designed for automotive power train sealing applications. Uses: Automotive flange sealing. Coolant system seals.

Engine block main seals. Withstands in-line pressure leak testing blowout resistance in assembly operations. What is DOWSIL 3-0115 Automotive Sealant.

specifications sealantadhesivee:

• brand: Dow Corning
• mpn: 3104087
• model: 3-0115
• product form: Paste
• specific sealing application: General Purpose
• color: Gray
• for material type: Metal
• full cure time: 1 Day
• cure type: Room Temperature
• hardness: Shore A50
• minimum operating temperature: 20 F
• standards: Astm
• california prop 65 warning: This Product Contains A Chemical Known To The State Of California To Cause Birth Defects Or Other Reproductive Harm.
• type: Gakset Maker
• working time: 10 Min
• unit type: Fl Oz
• unspsc: 31201606
• features: Low Odor; Non-corrosive
• maximum operating temperature: 120 F
• chemical base: Alkoxy Rtv Silicone
• unit quantity: 10.31
• resistance properties: Oil Resistant
• country of origin: United States

shipping sealantadhesivee:

• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• transit: 5-9 Days
• type: Calculated
• cost: $8.46

returns sealantadhesivee:

• policy: No Returns

offer sealantadhesivee:

• availability: In Stock
• sold: 0
• started: February 23, 2026
• options: Ship-to-home

general sealantadhesivee:

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

seller sealantadhesivee:

• rating: 100.0%
• city: Elizabethtown, Kentucky
• # reviews: 19

payments sealantadhesivee:

• wallet: Paypal
• credit card: Visa
• other

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