Window Putty vs Silicone: A Guide to Choosing the Right Sealant

When it comes to sealing leaks and cracks in your home or vehicle, two popular options are window putty and silicone sealants. While both products serve the same purpose, they have distinct differences that make them more suitable for specific applications.

Window putty is a cheaper alternative to silicone sealants, making it an attractive option for quick fixes. Its ease of use allows you to quickly apply it to surfaces without requiring any specialized tools or knowledge. Additionally, window putty can be trimmed off using a plastic knife or credit card if it oozes out during application.

Surfaces that window putty will stick to include most materials, such as wood, metal, and drywall. However, unlike silicone sealants, window putty is not suitable for use with certain chemicals like gas, turpentine, or mineral oil. It may also show signs of discolouration over time due to oxidation.

On the other hand, butyl tape, also known as silicone sealant, is a more durable and flexible option that can withstand extreme temperatures and humidity levels. Its strong initial tack allows it to bond instantly with most surfaces, making it an excellent choice for sealing areas where moisture is present.

Surfaces that butyl tape will stick to include a wide range of materials, including metal, wood, and plastic. Unlike window putty, butyl tape does not dry out easily and retains its integrity over time, saving you money on repairs and installations.

When choosing between window putty and silicone sealant, consider the specific requirements of your project. If you need a quick fix for a leaky area with minimal exposure to chemicals or extreme temperatures, window putty may be the better option. However, if you require a more durable and flexible seal that can withstand harsh conditions, butyl tape is likely the better choice.

In conclusion, both window putty and silicone sealants have their own strengths and weaknesses. By understanding the differences between these two products, you can make an informed decision when selecting the right sealant for your project.

Window putty vs silicone