When undersealing your car, it’s important to know whether your climate affects how often treatment should be applied.

Also, you might be wondering – Do I need to underseal my car in hot climates? What if I live on the coast? Also, When is the best time to underseal?

All of these will be answered in this blog post…

But first, what is Undersealing?

Mark from Preserve Protect said “Undersealing is the process of applying a layer of protection to the underbody of your car.”This aids in reducing the impact of stones, road salt (if applicable), and wet weather – which all contribute to corrosion, forming rust.

Why Should I Protect My Car from Corrosion?

There are many benefits to undersealing, but most notably it aids in the structural rigidity of the chassis and ensures it is safe during a crash.As the chassis is designed to absorb impacts and protect the occupants,if the chassis structure has been compromised due to rust and corrosion, then it will be less safe during an accident.

Also, undersealing helps reduce road noise and makes your cabin quieter when driving. Undersealing also is eco-friendly in the sense that itincreases the lifespan of your vehicle, which would otherwise need to be taken off the road if it became too rusty.

How often should I underseal my vehicle?

It depends on how often you use and treat your vehicle throughout the year, andenvironmental conditions. But it is recommended to treat your car with underseal every 3-5 years with an inspection every year to check the protection.

Which climates are the worst for undersealing?

The effectiveness of undersealing can vary based on climate. Harsh winter climates with heavy salt use and extreme temperature fluctuations pose the greatest challenge for undersealing. These conditions accelerate corrosion and require more frequent maintenance to protect your vehicle’s undercarriage.

If I live in a hot country do I need to underseal my car?

Yes, undersealing is crucial in hot climates too. High temperatures can accelerate corrosion, especially in coastal regions with salty and humid air. Choose undersealing products designed to withstand heat and humidity, ensuring your vehicle’s longevity in a hot environment.

Which undersealing products are the best?

Bitumen Coatingfor Affordability andOlder Cars

The least expensive option, bitumen coating, is cost-effective for short-term protection. It costs around £5 for a small can and is suitable for older cars that owners feel are on their last legs. However, it can become brittle and crack over time, allowing moisture to encourage rust.

Waxy Undersealsfor Self-Healing

Waxy-type underseals are more expensive but offer self-healing properties if hit by road debris. They provide good protection initially, but they can wear away over time, especially if the underside of the car is frequently pressure-washed or in hot weather.This is why it is important to regularly inspect the underseal treatment and re-apply every few years for maximum protection.

Corrosion-Inhibiting for Long-Term Protection

For the best and most long-lasting protection, consider treatments that combine corrosion-inhibiting elements and rust-conversion chemicals. These options are more expensive but effectively address existing corrosion while preventing further damage.