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Guardian Seal: DOWSIL Neutral Plus Silicone Sealant

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DOWSIL Neutral Plus Silicone Sealant is a versatile solution, renowned for its exceptional performance across diverse sectors. Its neutral-cure formulation ensures reliable sealing and bonding in construction, automotive, and industrial settings. Silicone sealants play a pivotal role in safeguarding structures against leaks, providing weather resistance, and enhancing durability. Their ability to withstand extreme conditions, including temperature fluctuations, UV exposure, and chemical contact, underscores their importance in ensuring long-lasting integrity in various applications. As a vital component in sealing and bonding, silicone sealants contribute significantly to the efficiency and longevity of structures and products across industries.

Features of DOWSIL Neutral Plus Silicone Sealant

DOWSIL Neutral Plus Silicone Sealant offers a host of features that make it a top choice for various sealing applications:

Neutral Curing System

This sealant cures at room temperature through a neutral curing system, reacting with ambient moisture. Cure time typically spans from 24 to 72 hours, contingent upon factors like temperature, humidity, and joint dimensions.

Versatile Applications

With a robust tensile strength of up to 0.6 MPa (87 psi), it maintains a secure seal even under stress. Additionally, it boasts a spectrum of color options, from clear to white, black, and gray, catering to diverse substrates and aesthetic preferences.

Outstanding Adhesion

Designed to accommodate movement, it can flex up to ±50% within appropriately constructed joints. Its superior adhesion extends to a wide array of substrates such as glass, aluminum, steel, and numerous plastics, ensuring compatibility with various building materials.

Weather Resistance

Engineered to endure harsh conditions, it withstands temperatures ranging from -40°C to 150°C (-40°F to 302°F), making it suitable for high-temperature environments. Its weather-resistant properties shield against weathering, UV radiation, and ozone, rendering it ideal for exterior applications.

Durability and Longevity

With its robust formulation and resilience against environmental factors, DOWSIL Neutral Plus Silicone Sealant delivers enduring performance, promising longevity and reliability in sealing applications.


DOWSIL Neutral Plus Silicone Sealant finds versatile applications across multiple industries and household settings:

Neutral Silicone Sealant

Construction Industry

Widely utilized for sealing windows, doors, and joints in both residential and commercial construction projects. Its excellent adhesion properties ensure a durable seal, effectively preventing water infiltration and air leakage. Additionally, its versatility in color options allows for seamless integration with various architectural designs.

Automotive Industry

In the automotive sector, this sealant plays a crucial role in bonding and sealing car components, including windshields, headlights, and taillights. Its high tensile strength and weather resistance make it ideal for withstanding the demanding conditions encountered in automotive environments. Whether used in manufacturing or repair applications, it provides reliable performance and long-lasting durability.

Household Applications

Within households, DOWSIL Neutral Plus Silicone Sealant serves a multitude of purposes, from repairing leaks in plumbing fixtures to sealing gaps around windows, sinks, and bathtubs. Its versatility and ease of application make it a go-to solution for DIY enthusiasts and professionals alike. Whether addressing water leaks, drafts, or aesthetic concerns, this sealant offers a reliable and cost-effective solution for various household sealing needs.

Installation and Usage Tips

Installation and usage of DOWSIL Neutral Plus Silicone Sealant involve several key steps for optimal performance:

Surface Preparation

Thoroughly clean and dry the surface to be sealed, removing any dirt, dust, or contaminants. Use a suitable cleaning agent and ensure the surface is completely dry before application to promote proper adhesion.

Application Techniques

Follow recommended joint design standards for the specific application. If necessary, use masking tape to achieve clean edges. Apply the sealant directly into the joint using a caulking gun, ensuring continuous and uniform coverage.


Tool the sealant within 5 to 10 minutes of application to achieve a smooth finish. Avoid tooling after the skin has formed to prevent damage to the sealant. Use a spatula or appropriate tool for tooling.

Curing Time and Conditions

Allow the sealant to cure for the recommended duration before subjecting it to stress or movement. Curing time varies based on factors like temperature and humidity. Refer to the product datasheet for specific recommendations.


Remove any excess or uncured sealant promptly using a suitable cleaning agent. Ensure thorough cleaning to maintain a neat appearance and prevent interference with the sealant's performance.

By adhering to these installation and usage tips, users can maximize the effectiveness and longevity of DOWSIL Neutral Plus Silicone Sealant in various applications across industries and households.


Superior Sealing Performance

DOWSIL Neutral Plus Silicone Sealant offers exceptional sealing performance, effectively sealing gaps and joints to prevent water infiltration, air leakage, and moisture ingress. Its excellent adhesion properties ensure a secure bond with various substrates, maintaining a tight seal even under stress or movement. This superior sealing capability enhances the integrity of structures and surfaces, providing long-term protection against environmental elements.

Long-lasting Durability

With its robust formulation and high tensile strength, DOWSIL Neutral Plus Silicone Sealant delivers long-lasting durability, resisting degradation and deterioration over time. It maintains its flexibility and adhesion properties, enduring exposure to fluctuating temperatures, UV radiation, and harsh weather conditions. This durability ensures sustained performance and reduces the need for frequent maintenance or replacement, saving time and resources.

Resistance to Weathering and Aging

Engineered to withstand the rigors of outdoor exposure, DOWSIL Neutral Plus Silicone Sealant exhibits exceptional resistance to weathering and aging. It remains unaffected by UV radiation, ozone exposure, and temperature extremes, retaining its sealing integrity and aesthetic appearance over extended periods. This resistance to environmental factors ensures reliable performance in both interior and exterior applications, enhancing the longevity of sealed surfaces and structures.

Contribution to Energy Efficiency

By forming a tight and durable seal, DOWSIL Neutral Plus Silicone Sealant contributes to improved energy efficiency in buildings and vehicles. It helps reduce heat loss and air leakage, enhancing insulation and thermal performance. This energy-saving benefit not only promotes environmental sustainability but also leads to cost savings by lowering heating and cooling expenses. By sealing gaps and joints effectively, the sealant supports efforts to create more energy-efficient spaces and structures.

Comparison with Competitors

Contrast with Other Silicone Sealants in the Market

Compared to conventional silicone sealants available in the market, DOWSIL Neutral Plus Silicone Sealant stands out for its superior performance and durability. While many silicone sealants offer basic sealing capabilities, DOWSIL Neutral Plus Silicone Sealant excels in providing long-lasting protection against water, air, and environmental factors. Its exceptional adhesion properties and resistance to weathering set it apart from competitors, ensuring reliable performance in diverse applications.

Unique Selling Points of DOWSIL Neutral Plus Silicone Sealant

DOWSIL Neutral Plus Silicone Sealant boasts several unique selling points that differentiate it from competitors. These include:

  • Neutral curing system for versatile application and ease of use.
  • High tensile strength and flexibility for enduring performance under stress and movement.
  • Wide range of color options to match various substrates and aesthetic preferences.
  • Exceptional resistance to weathering, UV radiation, and temperature extremes for long-term durability.
  • Contribution to energy efficiency through improved insulation and sealing performance.

Overall, DOWSIL Neutral Plus Silicone Sealant offers a combination of superior performance, durability, and versatility, making it the preferred choice for sealing applications across industries. Its unique features and benefits set it apart as a leading solution for sealing needs in construction, automotive, and household settings.

In Closing

DOWSIL Neutral Plus Silicone Sealant emerges as a top-tier solution for sealing needs across various industries and household applications. Its superior sealing performance, long-lasting durability, resistance to weathering, and contribution to energy efficiency make it a standout choice among competitors. With its exceptional adhesion properties and versatility in application, DOWSIL Neutral Plus Silicone Sealant delivers reliable performance and enduring protection against environmental elements. Whether sealing windows, joints, or automotive components, DOWSIL Neutral Plus Silicone Sealant proves to be a trusted and effective solution, ensuring peace of mind and satisfaction for users seeking optimal sealing solutions.