Sealants are chemical materials that fill gaps, cracks, seal joints, and seams. Its primary purpose is to avoid the leak of liquids, gasses, and fumes. Most sealant types are waterproof and air-tight. They may also have light adhesive characteristics, be chemically resistant, and can prevent the growth of mold, mildew, and other microorganisms.
There is no one-size-fits-all sealant out there. Choosing the right adhesive for your application depends on the requirements of the application and the environment. With that, there are several different sealants for home repairs and improvement. Below are the different types you should know.
Different Kinds of Sealants
1. Epoxy Sealant
Epoxy sealants are adhesive, highly resistant to strong chemicals, non-conductive, and can fare exceptionally well against any environment. So if the leak on your rooftop is getting worse, then going for an epoxy sealant is your best bet.
2. Polysulfide Sealant
This type of sealant is a flexible solution retaining joint elasticity even in low temperatures. It provides minimum shrinkage and is resistant to UV radiation, making it effective for exterior applications. Given this, polysulfide sealants are suitable even for underwater applications.
3. Silicone Sealant
The most common but also the most pricey one for home repairs and improvement is silicone sealant. Extremely flexible and durable, it has 10 to 20 years of life expectancy. In addition, these sealants can be modified for specific purposes: anti-mold silicones, heat-resistant sealants, and food safety solutions.
4. Phenolic Sealant
Phenolic seals offer strong endurance against high temperatures. It’s the only sealant that comes in powder, liquid, and film form. So if you need to repair fixtures exposed to erratic temperatures or seal appliances that operate in high heat, phenolic sealants are the ideal choice.
5. Water-based Latex Sealants
Water-based latex sealants have gained popularity due to their easy application and ability to adhere to many different surfaces. These sealants are especially effective for small crevices where movement is minimal. However, you should not use latex for waterproofing as it is prone to shrinkage and may pull away from the substrate creating gaps.
6. Butyl Sealants
This type of sealant is sometimes preferred due to its affordable price and ability to adhere to a wide range of substrates. However, its stringy consistency can make the application difficult.
7. Acrylic Sealants
Due to the UV stability of acrylic sealants, they are especially suitable for exterior applications. This type is not prone to shrinkage, making them an excellent sealant solution. However, acrylic sealants for home repairs should not be used when significant movement is involved as they aren’t flexible like other types. Filling interior and exterior gaps and cracks is the primary purpose of acrylic sealants.
8. Polyurethane Sealant Solutions
A standard go-to solution, polyurethane sealants are flexible and resistant to shear and abrasions. Polyurethane sealants for home repairs work well with a wide range of substrates and are easy to use as they require minimal surface preparation.
There are various types of sealants, each serving a different purpose. If you’re a homeowner looking for a sealant to use for your DIY projects, it is crucial to use the most appropriate sealant to repair your fixtures effectively.