Neutral cure silicone sealants are essential for construction, automotive, and industrial applications due to their flexibility, durability, and weather resistance. With the growing demand for high-performance sealing solutions, the USA is home to several top suppliers that offer high-quality, reliable products.

This article highlights the Top 10 neutral cure silicone sealant suppliers in the USA, showcasing companies that provide industry-leading sealants to meet various project needs. Whether for bonding, sealing, or waterproofing, these suppliers ensure top-notch performance and lasting protection.

What is Neutral Cure Silicone Sealant?

Neutral cure silicone sealant is a flexible, waterproof adhesive used for sealing joints and gaps in construction, automotive, and industrial applications. Unlike acetoxy silicone sealants, which release acetic acid during curing, neutral cure sealants emit alcohol or other non-corrosive byproducts.

This makes them ideal for use on sensitive materials like metal, glass, concrete, and plastics, as they won’t cause corrosion or discoloration.

Key features of neutral cure silicone sealants include the following:

• Weather Resistance: They provide excellent protection against UV rays, rain, and temperature changes.
• Durability: These sealants remain flexible over time and can withstand expansion and contraction.
• Mildew Resistance: Ideal for wet environments, they often have anti-mildew properties to prevent fungal growth.

Neutral cure silicone sealants are widely used in both indoor and outdoor applications where long-lasting, non-corrosive sealing is required.

Market Insights and Latest Trends of Neutral Cure Silicone Sealant in 2025:

The neutral cure silicone sealant market is poised for significant growth in 2025, driven by increasing demand across construction, automotive, and industrial sectors. Neutral cure silicone sealants are favored for their non-corrosive properties, making them ideal for sensitive materials like metals and plastics.

Market Size and Growth:

The global silicone sealants market, encompassing neutral cure variants, was valued at approximately USD 4.27 billion in 2024. Projections indicate it will reach around USD 6.80 billion by 2032, growing at a compound annual growth rate (CAGR) of 6% from 2025 to 2032.

Key Growth Drivers:

• Construction Industry Expansion: Rapid urbanization and infrastructural development, especially in emerging economies, are boosting the demand for durable sealants. Neutral cure silicone sealants are preferred for their excellent adhesion and weather-resistant properties.
• Automotive Sector Demand: The automotive industry’s growth necessitates advanced sealing solutions. Neutral cure silicone sealants are utilized for bonding and sealing components, contributing to vehicle durability and performance.
• Technological Advancements: Innovations in sealant formulations have led to products with enhanced performance characteristics, such as improved flexibility and resistance to extreme temperatures, widening their application scope.

Regional Insights:

• Asia-Pacific Dominance: The Asia-Pacific region is expected to witness significant growth, driven by rapid industrialization and urbanization in countries like China and India. The burgeoning construction and automotive industries in these nations are major contributors to market expansion.
• North America and Europe: These regions continue to show steady demand, supported by established construction industries and a focus on infrastructure maintenance and renovation.

List of Top Top 10 Neutral Cure Silicone Sealant Suppliers in the USA:

1. Frameless Hardware Company LLC (FHC)

• Year Founded: –
• Main Services and Products: Tools, supplies, and innovative hardware including high-quality neutral cure silicone sealant for frameless shower doors, storefronts, railings, and windows.
• Mainly Serves: Glass, glazing, and fenestration industries.

FHC is a privately-owned American company with a customer-centric approach. They focus on product innovation, customer service, and entrepreneurship. Backed by industry veterans, they provide expert technical solutions and aim to support businesses with high-quality products and small-business ideologies.

2. Chemical Concepts

• Year Founded: 60+ years of experience
• Main Services and Products: Adhesives, sealants including neutral cure silicone sealant, tapes, and specialty fasteners.
• Mainly Serves: Businesses in need of adhesive and sealing solutions.

Chemical Concepts has over 60 years of experience providing engineered adhesive solutions. They offer custom-engineered options to meet clients’ needs and provide consulting services to overcome design, process, and labor challenges. With a focus on on-time delivery, they position themselves as a solutions provider rather than just a product supplier.

3. Girafe

• Year Founded: 28+ years of experience
• Main Services and Products: Silicone sealant materials and related solutions.
• Mainly Serves: Global markets, exporting to over 80 countries.

Girafe, with 28+ years of experience, has a state-of-the-art production facility and an annual capacity of 150,000 tonnes. They hold multiple certifications (ISO9001, CE, FDA, RoHS) and have earned various honors, such as “China Famous Brand.” Their commitment to quality and sustainability drives their international growth, with ambitions of reaching an annual output value of 6 billion RMB.

4. Ellsworth Adhesives

• Year Founded: 1974
• Main Services and Products: Adhesives, specialty chemicals, equipment, and application solutions.
• Mainly Serves: Manufacturers seeking adhesive and dispensing solutions.

Founded by Paul and Patsy Ellsworth, the company has grown into a global distributor of specialty chemicals and equipment. Their wide variety of sealants including premium neutral cure silicone sealants are appreciated globally. They focus on driving performance in design and manufacturing through adhesive solutions, automation, and services.

Their extensive catalog and customer-first approach make them a trusted name in the industry.

5. C.R. Laurence Co., Inc. (CRL)

• Year Founded: 50+ years of experience
• Main Services and Products: Construction materials, hardware, and industrial tools.
• Mainly Serves: Construction and glazing industries.

CRL has over 50 years of experience and is known for its breadth of product choices and fast, reliable service. They prioritize customer satisfaction and offer end-to-end support to ensure projects are completed on time and within budget. CRL’s reputation is built on trust and delivering industry-first innovations.

6. Bostik, Inc

• Year Founded: 1889
• Main Services and Products: Adhesives and sealants, including neutral cure silicone sealants, flooring, and construction solutions.
• Mainly Serves: Construction, industrial, and consumer markets.

Bostik, a global adhesive specialist, has over a century of experience. They offer innovative bonding solutions that prioritize durability and environmental responsibility. Their extensive product line serves a variety of industries with a focus on performance, flexibility, and ease of use.

7. Sika Corporation

• Year Founded: 1910
• Main Services and Products: Specialty chemicals for sealing, bonding, waterproofing, and structural strengthening.
• Mainly Serves: Construction, automotive, and industrial sectors.

Sika is a global leader in innovative construction and industrial solutions, with a strong focus on sustainability. Their neutral cure silicone sealants are renowned for their long-lasting performance and versatility. Sika’s reputation is built on their commitment to quality and technological advancements.

8. DAP Products Inc.

• Year Founded: 1865
• Main Services and Products: Sealants, adhesives, patching, and repair products.
• Mainly Serves: DIY, construction, and professional contractors.

DAP is a trusted name in the sealant and adhesive industry with over 150 years of experience. They offer high-performance products tailored to home repair and construction needs. Their top-quality neutral cure silicone sealants are widely used for their non-corrosive properties and strong adhesion to various materials.

9. Fisheries Supply

• Year Founded: 1928
• Main Services and Products: Marine supplies, adhesives, wide variety of sealants, and construction products for marine applications.
• Mainly Serves: Marine and boating industries.

Fisheries Supply is a leading supplier of marine products, including high-performance silicone sealants. They focus on providing solutions tailored to the unique demands of marine environments, ensuring quality and longevity. Their customer-centric approach ensures reliable service for marine professionals and enthusiasts alike.

10. Silicone Depot

• Year Founded: –
• Main Services and Products: top-notch neutral cure silicone sealant and caulking solutions.
• Mainly Serves: Construction, automotive, and industrial markets.

Silicone Depot specializes in high-quality silicone sealants with a focus on affordability and performance. They provide neutral cure sealants that are ideal for sensitive surfaces and extreme conditions. Their direct-to-consumer model ensures competitive pricing without sacrificing product quality.

Conclusion:

The demand for high- performance neutral cure silicone sealants in the USA continues to grow, driven by advancements in construction and industrial needs. These top 10 suppliers play a critical role in meeting this demand with innovative, durable, and eco-friendly products. Their diverse offerings cater to a wide range of industries, ensuring effective solutions for bonding, sealing, and waterproofing.

By prioritizing product performance and customer-centric service, these companies have solidified their positions as trusted partners in the sealant industry.

FAQs

What is the difference between neutral cure and acetoxy cure silicone sealants?

Neutral cure sealants release alcohol or other neutral substances during curing, while acetoxy cure sealants release acetic acid, which can corrode certain surfaces like metal.

Can neutral cure silicone sealants be painted over?

No, most silicone sealants, including neutral cure, are not paintable. You may need to use paintable alternatives or specialized primers.

Is neutral cure silicone suitable for outdoor applications?
Yes, neutral cure silicone sealants are highly UV-resistant and weatherproof, making them ideal for outdoor use.

How long does neutral cure silicone sealant take to fully cure?
Neutral cure silicone typically cures within 24 to 48 hours, depending on humidity, temperature, and thickness of the application.

Can neutral cure silicone sealants adhere to glass and metal?
Yes, neutral cure silicone sealants are non-corrosive and bond well with materials like glass, metal, ceramic, and plastic.

Can neutral cure silicone be removed easily?
Removing cured silicone requires mechanical scraping or a silicone remover solvent. It can be challenging, so proper application is important.

What temperature range can neutral cure silicone sealants withstand?
Neutral cure silicone sealants are generally heat-resistant and can withstand temperatures ranging from -40°C to 150°C (or higher, depending on the product).

How should neutral cure silicone sealants be stored?
Store in a cool, dry place, away from direct sunlight and heat, to preserve shelf life and effectiveness.