Notes When Coating Car Undercarriage Helps Car Operate More Smoothly

Car undercoating is the process of creating a special protective layer for the undercarriage of the car using specialized chemicals. This is an essential maintenance process that every car owner should perform periodically. Especially in the humid tropical climate of Vietnam, where the average annual humidity can reach 80-85%, undercoating becomes even more urgent to prevent rust and protect the safety of the user.

Let's learn more about Car undercoating process and important notes when performing.

The importance of car chassis

The car chassis plays a key role in the structure and operation of the vehicle:

• Bear 60-70% of total vehicle weight
• Protects important components such as engines and transmission systems
• Ensure stability and safety during operation

According to statistics from the Vietnam Automobile Manufacturers Association (VAMA), about 35% of car incidents are related to chassis damage, of which 15% are due to rust.

Benefits of covering cars

Effective noise reduction:

• Reduces engine and environmental noise by up to 5-7 decibels
• 30-40% improvement in cabin sound experience

Superior wear resistance:

• Increases impact resistance by up to 200%
• Extends chassis life by 3-5 years

Comprehensive protection against corrosion:

• Prevents 95% of water and corrosive substances
• Reduces the risk of rust on metal surfaces by 70%.

Professional car undercoating process

Check and prepare:

• Overall assessment of chassis condition
• Lift the car onto a specialized bridge (optimal height: 1.5-1.8m)

Thorough cleaning:

• Remove the shielding details
• Use specialized cleaning solution (pH 7-8)
• Cleaning time: 30-60 minutes depending on dirt level

Prepare materials:

• Amount of paint needed: 750-900ml for 5-seat car
• Choose a topcoat with high adhesion (>80% according to ASTM D3359)

Undercoating process:

• Spray evenly with 2-3 bar pressure
• Coating thickness: 1.5-2mm
• Drying time: 2-3 hours at 25°C, 60% humidity

Important notes when coating the car chassis

Choose the right time:

• Best in dry season, temperature 20-30°C
• Avoid days with humidity >70%

Check carefully before coating:

• Ensure there are no cracks or structural damage
• Repair rust spots (if any) before coating.

Using high quality materials:

• Choose an undercoating with ISO 12944 anti-corrosion certification
• Prioritize environmentally friendly products with low VOC (<250 g/L)

Maintenance after coating:

• Avoid washing your car for the first 7 days.
• Check every 3 months

Car undercoating is an effective and necessary protection measure, especially in Vietnam's climate conditions. By following the above notes and choosing a professional service, you can extend the life of your car, increase safety and significantly improve your driving experience. Remember to apply undercoating every 6 months to ensure optimal efficiency.

FAQ – Frequently Asked Questions

1. How long does car undercoating last?

Typically, a high-quality undercoating can last 2-3 years under normal use. However, for vehicles that are frequently driven in harsh environments (such as coastal areas with high salinity), the effective time can be reduced to 12-18 months. Read the article now: Should I cover the undercarriage of my car?? is answered in detail on the website.

2. What is the average cost to undercoat a 5-seater car?

The average cost of undercoating a 5-seater car ranges from 1.5 million to 3 million VND, depending on the quality of the material and the complexity of the undercarriage. High-end services using nanotechnology can cost up to 5-7 million VND.

3. Is it necessary to remove the old undercoating before applying a new one?

In 80% of cases, the old coating needs to be removed to ensure the best adhesion of the new layer. This process usually takes an additional 2-3 hours and increases the cost by about 20-30%.

4. What types of underbody coating materials are popular on the market?

The three most common materials are:

• Bitumen paint (50% market share)
• Polyurethane paint (30% market share)
• Epoxy paint (15% market share)

Other types such as synthetic rubber paints make up the remaining 5%.

5. Does undercoating help reduce road noise from reaching the cabin?

Yes, underbody coating can reduce road noise entering the cabin by 3-5 decibels, equivalent to a 30-40% reduction in human sound perception. This effect is especially noticeable when driving on rough road surfaces.

6. Does undercoating affect the fire resistance of the vehicle?

Most modern undercoating materials are fire-resistant, with a low flame spread index (below 25 according to ASTM E84). However, it is necessary to ensure that the product meets fire safety standards.

7. Does undercoating affect the vehicle's wading ability?

Undercoating can actually improve a vehicle's short-term wading ability by up to 10-15% by creating an additional waterproof layer. However, this ability should not be overused as water can still penetrate through other gaps in the vehicle.

8. Where to get professional car undercoating at a good price in HCM?

Thanh Phong Auto proud to be a trusted destination for car undercoating services in Ho Chi Minh City. With over 10 years of experience in the field of car care and maintenance, we are committed to bringing customers a high quality service experience and optimal efficiency.

Why should you choose chassis coating service at Thanh Phong Auto?

Professional technical team:

• 100% of employees are well trained and have certificates from reputable car manufacturers.
• Average 5+ years of experience in undercarriage care

Modern equipment:

• 2 post lift with 4 ton capacity
• 200 bar high pressure washer
• Ultrasonic coating thickness testing equipment accurate to 0.1mm

Premium undercoating material:

• Using 3M/Wurth undercoating 100% imported from USA/Germany. See products now Wurth gray undercoating 1l & Wurth black undercoating 1l Genuine, best price today.
• High durability, superior corrosion resistance (meets ISO 12944 standards)

Professional process:

• Follow international standard 7-step process
• Completion time: 3-4 hours for 5-seater car

Superior warranty policy:

• 12 month warranty for undercoating
• Free check after first 3 months

Competitive price:

• Best price commitment on the market
• Free car care package worth 500.000 VND for customers who have undercoating

At Thanh Phong Auto, we not only provide simple undercoating services but also provide comprehensive protection solutions for your beloved car. Let us take care of your car's undercarriage, bringing peace of mind and comfort on every road!

Contact Thanh Phong Auto immediately via hotline [phone number] or visit us at [address] for detailed advice and to schedule car undercoating today!

Car undercoating process at Thanh Phong Auto