Concrete Sealers in Waterproofers and Sealers

For outdoor driveways, penetrating concrete sealers are often recommended. These sealers soak into the concrete surface, providing waterproofing and protection without altering the natural look. They help prevent damage from water, salts, and freeze-thaw cycles. Water-based silane or siloxane sealers are popular choices because they are durable and easy to apply. Additionally, some sealers offer a wet look or high gloss finish if you want to enhance the appearance. Choosing a sealer designed specifically for exterior use ensures better protection against weather and wear.

Sealing concrete offers many benefits, but there are some potential downsides to consider:

• Surface Slipperiness: Some sealers, especially high gloss types, can make surfaces slippery when wet.
• Maintenance: Sealers may need to be reapplied every few years to maintain effectiveness.
• Application Sensitivity: Improper application or sealing on dirty or wet surfaces can lead to peeling or uneven coverage.
• Color Changes: Certain sealers might slightly darken or alter the concrete's natural color.

Understanding these factors can help you choose the right product and apply it correctly.

Both spraying and rolling are common methods to apply concrete sealer, and the choice depends on your project size and surface type:

• Spraying: Ideal for large or uneven surfaces, spraying offers quick and even coverage. It requires equipment like a sprayer and protective gear to avoid inhaling fumes.
• Rolling: Better for smaller or flat areas, rolling gives you more control and reduces overspray. It's easier for DIY projects without specialized tools.

Consider the surface texture, area size, and your comfort with the tools when choosing the application method.

The coverage of 5 gallons of concrete sealer depends on the product type and surface porosity, but generally, it covers about 250 to 500 square feet per gallon. This means 5 gallons can cover approximately 1,250 to 2,500 square feet. Penetrating sealers usually require fewer coats, while film-forming sealers might need multiple layers, affecting coverage. It's best to check the specific product instructions for coverage rates and plan accordingly to ensure you purchase enough sealer for your project.

Proper surface preparation is key for effective sealing. Here are some important steps:

1. Clean the Surface: Remove dirt, oil, grease, and stains using a pressure washer or concrete cleaner.
2. Repair Cracks: Fill any cracks or holes with a suitable patching compound and let it cure.
3. Dry Completely: Ensure the concrete is fully dry before applying sealer to avoid trapping moisture.
4. Remove Old Sealers: If resealing, strip any previous sealers that are peeling or damaged.

Following these steps helps the sealer adhere properly and improves durability.