Selecting the best external sealants for your DIY project

When it comes to completing your autumn and winter DIY projects, selecting the right external sealant is crucial. External sealants are essential for protecting your outdoor surfaces from the harsh elements, ensuring your home stays weatherproof through wet, windy, and cold months. Whether sealing windows, doors, or gaps in brickwork, using the correct sealant will provide durability and flexibility, helping prevent damage caused by moisture, cold, and temperature changes. In this guide, we’ll explore three excellent options for external sealant products and their features, helping you choose the best one for your project.

Why External Sealant is Important

During autumn and winter, temperatures drop, and moisture levels rise, creating ideal conditions for leaks and cracks to form. Using a high-quality external sealant helps prevent water penetration and air leaks, which could lead to damage, mould growth, and energy inefficiency. The ideal external sealant should be weather-resistant, flexible, and compatible with a variety of materials such as wood, metal, brick, or UPVC.

Choosing the Right External Sealant

When selecting an external sealant, consider the specific needs of your project. Does the surface you’re sealing expand and contract with temperature changes? Do you need a product that works well on multiple surfaces? Below are three external sealant products that stand out for their performance and versatility in outdoor settings.

The ARBO Arbosil LM External Sealant is a high-performance sealant that is well-suited for various external applications. This product is a neutral curing silicone sealant, meaning it reacts with moisture to create a flexible and durable bond that is resistant to weathering and UV light. This makes it an excellent choice for outdoor use, where it will be exposed to the elements.

Arbosil LM is particularly effective for sealing windows, doors, and facades, as it adheres to both porous and non-porous surfaces such as glass, metal, and brickwork. Its low-modulus nature ensures that it can accommodate the movement of materials due to temperature fluctuations without cracking, making it ideal for use in environments prone to expansion and contraction. For DIYers working on autumn and winter projects, this sealant offers the durability and flexibility needed to protect your home from the elements.

The Everbuild 825 External Sealant is another excellent option designed specifically for outdoor use. Like the ARBO Arbosil LM, Everbuild 825 is a low-modulus, neutral-curing silicone sealant that provides long-lasting flexibility and resistance to weathering. It is suitable for sealing joints around windows, doors, and frames, as well as brick and masonry work.

What sets Everbuild 825 apart is its excellent adhesion to most construction materials, including glass and timber. It can also be used in cold conditions, making it perfect for autumn and winter projects when temperatures are dropping. Additionally, it is resistant to mould and mildew, providing an extra layer of protection for outdoor surfaces that are frequently exposed to moisture.

The Bond It LMH25 Internal & External Sealant offers versatility, as it is suitable for both indoor and outdoor use. This hybrid polymer sealant provides excellent adhesion to a wide range of surfaces and remains flexible once cured, making it ideal for applications where movement may occur, such as in expansion joints, windows, and doors.

Bond It LMH25 is particularly effective in colder temperatures, as it cures quickly even in low humidity. It provides resistance to weathering, UV light, and moisture, making it a reliable choice for outdoor sealing tasks during the colder months. Its hybrid formula means it can be applied to damp surfaces, which is especially helpful in autumn and winter conditions.

Purchase external sealants via our website

For your autumn and winter DIY projects, choosing the best external sealant will protect your home from the seasonal challenges of cold, wet weather. By selecting the one that best suits your specific needs, you can ensure your home stays secure and weatherproof throughout the colder months.

Purchase external sealants from a range of brands via our website today.