Best Fillers, Adhesives & Sealants of 2025

The ARZER Leak Repair Additive is designed to permanently seal radiator leaks, providing a reliable solution for your vehicle's cooling system. It works effectively even when mixed with anti-freeze, ensuring your system runs smoothly without interruption. This product also contains rust inhibitors, which help protect your radiator and hoses from corrosion, extending their lifespan. Additionally, it is safe for use with rubber hoses, giving you peace of mind that your repairs won't cause further damage.

The J-B Weld SteelStik Putty is an exceptionally strong epoxy that allows you to make permanent repairs on a variety of surfaces. Whether you are working with wet or dry surfaces, this putty ensures a reliable bond. It is ideal for fixing common metal materials such as aluminium and brass, making it versatile for various projects. Plus, its resistance to water, chemicals, and heat means that your repairs will last, providing peace of mind in demanding environments.

The Silverhook BIG11 Body Filler offers a fine compound that ensures a smooth application. This ultra-smooth finish is ideal for achieving a professional look in your repairs. You will appreciate the added leveling properties, which help you create a flawless surface with ease. This body filler is perfect for filling gaps and imperfections, making your projects easier and more efficient.

The Silverhook BIG31 Filler is designed for use on car bumpers and other surfaces, providing exceptional flexibility. Its ability to grip a wide range of surfaces ensures that you can tackle various repair jobs with confidence. You will appreciate its corrosion and water resistance, which helps maintain the integrity of your repairs over time. Additionally, the high elasticity of this filler allows for easy application and excellent durability, making it a practical choice for your automotive needs.

The Visbella Gasket Maker is a versatile adhesive designed for high-temperature applications. With its non-corrosive properties, you can trust that it will provide a long-lasting seal, ensuring durability in your repairs. This product is ideal for a variety of materials, making it perfect for automotive and household projects. Its easy application means you can quickly get the job done without fuss, providing you with convenience and peace of mind in your sealing tasks.

The U-POL P38 Bodyfiller is designed to effectively repair damaged body panels on vehicles. With its 250ml capacity, it provides ample filler for both minor scratches and serious dents. It is suitable for use on bare steel as well as original paint, ensuring versatility in your repair tasks. This easy-to-sand bodyfiller allows you to achieve a smooth finish, making it simple for you to restore your vehicle's appearance with minimal effort.

The U-Pol Easy One Filler is ideal for addressing medium to deep panel damage on your vehicle. This two-component polyester filler effectively fills holes and imperfections, ensuring a smooth finish. You will appreciate its easy sanding feature, making your repair work more efficient. Additionally, it offers excellent adhesion to various surfaces, including steel, aluminium, GRP, and wood, providing versatility for different projects.

The Isopon P38 Filler is an excellent choice for repairing dents and scratches on your vehicle. This multi-purpose filler is designed for easy sanding, making it simple for you to achieve a smooth finish. Its polyester composition ensures durability, allowing for long-lasting repairs. As a car body filler, it provides the convenience of tackling various types of damage, making it a versatile addition to your automotive toolkit.

LOCTITE 243 Threadlocker is a medium-strength adhesive designed to secure screws, nuts, and bolts against loosening caused by impacts. It provides a secure seal, making it ideal for applications on pumps and gearboxes. You will appreciate its compatibility with all threaded metal connections, including challenging materials like stainless steel and aluminium. Additionally, this product boasts high resistance to temperature and oil, ensuring reliability even in contaminated environments.

The Gorilla Waterproof Seal is designed for reliable protection against the elements. Its flexible and weatherproof formula ensures that you can defend various surfaces effectively. You can easily apply it to seal small gaps and cracks, creating a watertight barrier that stops leaks. Suitable for both indoor and outdoor use, it provides a dependable solution for protecting your roofing, gutters, and even small repairs on caravans. This makes it a convenient choice for various sealing needs around your home or vehicle.