Howell Silicone Sealant

Oxime Acetoxy Alkoxy

Versatile Sealant & Adhesive Options: MS Hybrid, Silicone, and Anaerobic

Ms Hybrid Sealants

Howell MS sealant made with our own silane terminated polyether(MS polymer). This kind of new generation sealant is gaining popular among the world. Howell MS sealants have good bonding ability to various substrates like metals, glass and plastics, paintable is its another advantage which is quite suitable for home sealing purposes. The most important benefit it can give is that they are naturally environmentally friendly by containing low or 0 Vocs.

Silicone Sealants

Howell Silicone Sealants provide strong adhesion, tensile strength, and excellent weather resistance, making them ideal as high heat silicone sealant. Their quake resistance, electrical insulation, moisture-proof, leak-proof, and odor resistance properties also make them suitable for automotive silicone sealant applications. Furthermore, their durability and resistance to mildew and moisture make them an excellent choice for bathroom silicone sealant. Howell Silicone Sealants deliver versatile performance for a wide range of applications, including in high temperature, automotive, and bathroom environments.

Anaerobic sealants

Howell specializes in the research and development, as well as the manufacturing, of anaerobic sealants specifically designed for flange sealing and pipe thread and joint locking. These sealants, ideal for metal-to-metal interfaces, cure in the absence of air, ensuring leak-proof, vibration-resistant seals. Essential in industries like automotive, aerospace, and heavy machinery, Howell's products offer robust strength and durability. Their expertise in anaerobic technology has made them a leader in the field, providing reliable and efficient sealing solutions that adhere to stringent industrial standards.

Fiberglass Tissue

The fiberglass tissue is made of chopped fibers, which are randomly and evenly distributed into continuous fiberglass paper sheets by paper-making method, and bonded with binder. Its main performance & characteristics : chemical corrosion resistance, fire resistance, flame retardant, waterproof, aging resistance, weather resistance, insulation and other characteristics. The fiberglass tissue is widely used as reinforced plastic substrate, anti-corrosion, thermal insulation, fire retardant, waterproof materials, gypsum board ceiling building materials, VOCSCR carrier, PVC floor and carpet substrate, epoxy copper clad laminate and electrical insulation products.

Roof Coating

Whether your roof is large or small, flat or sloped, Silicone Roof Coatings provide a proven, guaranteed solution for renewing your weathered roof. They can be applied to virtually any existing roofing surface to create a seamless membrane that protects against permanent ponding water, ultraviolet light and severe weather.

The key advantages of using a silicone roofing coating are:

Silicone is permanent and will not degrade, chalk or crack under harsh UV rays.
Silicone forms a seamless membrane that withstands permanent ponding water without softening.

Silicone creates a smooth surface that offers excellent resistance to mold, mildew and staining.

AVOID TIME-CONSUMING AND COSTLY TEAR-OFFS.

By re-covering, you save on labor costs and avoid landfill expenses, plus your existing roof can be re-covered without any interruption to normal business operations.

EXTEND THE LIFE OF YOUR ROOF. By renewing your roof, you’ll never need to replace the roof again. REDUCE ENERGY COSTS. The highly-reflective, glossy finish of Silicone Roof Coatings can help reduce energy costs.

IDEAL FOR USE ON FLAT AND LOW-SLOPED ROOFS.

Apply over pre-existing elastomeric roof coatings, metal roofs, built-up roofing, mineral cap sheet, and weathered single ply membranes (EPDM, Hypalon® and TPO/CPA). Re-coat existing sprayed-in-place polyurethane foam, concrete, wood, and many other coatings

Starting from adhesives developed for vehicles and machine parts bonding and sealing, gasket free sealant, flange sealants, screw lock sealants, fiberglass tissue...

Manufacturing bonding and sealing materials

Years of Experience in

Developing and Manufacturing bonding and sealing materials

Nanjing Howell New Material Technology Co., Ltd. is engaged in developing and manufacturing bonding and sealing materials for over 20 years. It started from a small factory with a few products to current size with 8000M² factory and 400M² lab, providing our clients not only a variety of bonding products but also customization services for their special bonding demands.

MORE ABOUT US

Advantages and tech showcase

An experienced R&D team with leading technicians owning 10 more years developing ability
Working with Industry TOP brands for new products development
Possessing exclusively high active MS polymer, no need curing agent in the formula

Laboratory Area

Factory Scale

Production Line

Packaging Line

INTEGRATED SEALING AND BONDING MATERIALS MANUFACTURER

With the leading core technology, strict selection of raw materials, rigorous production, stable and reliable quality, professional and considerate service, Howell provides customers with a full range of bonding and sealing solutions at home and abroad.

LATEST NEWS

December 19, 2025

Top Strategies for Selecting the Best Silicone Sealant for Your Projects

Choosing the best Silicone Sealant is less about brand loyalty and more about matching chemistry, performance, and application method to your real job site conditions. Whether you’re sealing a shower surround, glazing a window, or weatherproofing exterior joints, a smart selection process prevents t

December 15, 2025

Acetoxy vs Oxime Silicone: An In-Depth Look

If you’ve ever shopped for a Silicone Sealant and noticed terms like “acetoxy” and “oxime,” you’re not alone. These labels aren’t marketing fluff—they describe how the sealant cures and what it releases during curing, which can impact odor, corrosion risk, adhesion, and long-term performance. In thi

December 10, 2025

Choosing Alkoxy Or Oxime Sealant? Critical Differences

Choosing between an Alkoxy Sealant and an oxime-cure option can feel like splitting hairs—until a joint fails, a roof recoat peels, or a “neutral cure” product unexpectedly reacts with a sensitive substrate. Because both belong to the neutral-cure family of Silicone Sealant, they can look similar on

December 04, 2025

Nanjing Howell Successfully Joined at Adhesives & Bonding EURASIA 2025

We Are Exhibiting at The Big 5 Dubai 2025 — Showcasing Our New Era of Material TechnologyWe are excited to announce that our company will participate in The Big 5 Dubai 2025, one of the world’s most influential exhibitions for the construction and building materials industry. As a global hub for inn

December 02, 2025

BIG 5 Global Dubai, NOV.24-27, 2025, Dubai World Trade Centre

November 22, 2025

In What Applications Is Fiberglass Tissue Most Valuable?

IntroductionFiberglass tissue has become a critical reinforcement material across multiple industries, valued for its ability to enhance mechanical strength, durability, and surface quality.