Should I Seal My Tarmac?

Tarmac sealing can be beneficial, but it depends on your specific needs and the condition of the tarmac surface. Here's a breakdown of the pros and cons of tarmac sealing:

Benefits of Tarmac Sealing:

1. Enhanced Protection:

   • Sealing tarmac creates a protective layer that helps guard against wear and tear, weather elements, oil spills, and other stains. It prevents moisture from seeping into the tarmac, which can lead to cracking and deterioration over time.

2. Improved Appearance:

   • A fresh sealant restores the tarmac's color and can make it look newer and more uniform. It can also darken the surface, giving it a fresh, glossy finish.

3. Extended Lifespan:

   • Sealing helps to extend the life of your tarmac surface by protecting it from environmental damage (UV rays, rain, etc.) and reducing the risk of cracks, potholes, or surface degradation. It can help maintain the surface for several years.

4. Water Resistance:

   • The sealant creates a barrier that helps repel water, which can reduce the chances of water infiltration that might lead to cracks or erosion of the surface. This is especially helpful in areas with heavy rainfall.

5. Easy Maintenance:

   • Sealed tarmac is easier to clean and maintain since dirt, oil, and other stains are less likely to penetrate the surface. It’s also easier to sweep and wash.

Drawbacks of Tarmac Sealing:

1. Cost:

   • While not overly expensive, sealing can add to the initial cost of installing tarmac, especially if you need to hire professionals for the job. It will also need to be reapplied every few years (usually 2–5 years depending on traffic and weather conditions).

2. Temporary Solution:

   • Sealing is not a permanent fix. Over time, even sealed tarmac can wear down, and you may need to reapply the sealant to maintain its effectiveness and appearance.

3. Not a Cure for Existing Damage:

   • If the tarmac is already cracked or in poor condition, sealing won't fix these underlying issues. Sealing works best when applied to a surface that's in decent condition, as it won’t repair existing cracks or damage.

4. Risk of Improper Application:

   • If not applied correctly (e.g., unevenly or at the wrong time of year), the sealant might not perform as expected. The surface must be properly cleaned and dry before sealing, and the correct type of sealant should be used to match the tarmac.

When Is Tarmac Sealing Recommended?

• If your tarmac is new or in good condition, sealing can help preserve it and extend its lifespan.

• It’s also helpful if your tarmac has already begun showing signs of wear, like fading or minor cracks. The sealant will help protect and rejuvenate the surface.

• High-traffic areas, like driveways or parking lots, can benefit from sealing to reduce damage from frequent use, weather exposure, and oil stains.

Conclusion:

Tarmac sealing is generally good for preserving the surface, improving appearance, and extending its lifespan, especially when applied to a relatively new or well-maintained tarmac surface. However, it’s not a solution for existing structural damage and will require periodic reapplication. If your tarmac is in need of repair, it's best to address those issues before applying a sealant.