What is a Sealer? Types and Applications

A sealer is a substance used to protect or seal something. It can be used to prevent the passage of liquids, gases, or other substances through a surface or material. Sealers are commonly used in various applications such as:

1. Coatings: Sealers are often applied over coatings to protect them from wear and tear, and to prevent stains or discoloration.
2. Flooring: Sealers are used on floors to protect them from moisture and stains, and to make cleaning easier.
3. Countertops: Sealers are applied to countertops made of natural stone, such as granite or marble, to protect them from stains and scratches.
4. Paving: Sealers are used on paved surfaces, such as driveways and sidewalks, to protect them from water and oil penetration.
5. Roofing: Sealers are applied to roofs to protect them from weathering and to prevent leaks.
6. Waterproofing: Sealers are used to waterproof surfaces and structures, such as basements and foundations.
7. Food packaging: Sealers are used in food packaging to prevent the spoilage of food products.
8. Pharmaceuticals: Sealers are used in the pharmaceutical industry to protect drugs from moisture and other contaminants.

There are different types of sealers available, depending on the specific application and the surface being protected. Some common types of sealers include:

1. Acrylic sealers: These are water-based sealers that are commonly used on concrete and other porous surfaces.
2. Silane sealers: These are solvent-based sealers that are used on glass, metal, and other non-porous surfaces.
3. Polyurethane sealers: These are two-component sealers that cure to form a flexible, durable coating. They are commonly used on floors and other surfaces that require a high level of protection.
4. Epoxy sealers: These are two-component sealers that cure to form a strong, durable coating. They are commonly used on concrete and other porous surfaces.
5. Silicone sealers: These are water-based sealers that are commonly used on flexible surfaces, such as rubber and plastic.