To determine if your car dealer used sealant on your new car, you can look for a few signs and perform some tests:

1. Visual inspection:

• Gloss and Gloss: Cars using sealants often have a high gloss and smooth surface. If the paint looks unusually shiny and reflective, it may have been treated with a sealant.
• Water Behavior: After washing your car, observe how the water behaves on the surface. If beads of water form and roll off easily, this may indicate the presence of sealant. If water flakes come off instead of beading, the sealant may not be effective or may be worn.

2. Touch Test:

• Smoothness: Run your hand over the paint surface. The car should feel very smooth with the sealant applied. If it feels rough or textured to you, it may not have been treated or may need a clay bar treatment.

3. Check Documentation:

• DEALER INFORMATION: Ask the dealer directly if sealant is used. They should have records of any treatment performed on the vehicle prior to delivery.
• Window Sticker or Label: Some dealers put a sticker or label on the vehicle to indicate that a sealant or protective coating has been applied.

4. Product Application:

• Look for Residue: If a sealant was used, there may be some residue around the edges of the trim or in areas where the product may have been over-applied. However, this is not always a clear indicator.

5. Professional Assessment:

• Detail Inspection: If you are unsure, consider having the vehicle inspected by a professional detailer. They can usually tell whether a sealant or wax was used based on their experience and knowledge of paint protection products.

in conclusion:

While there are several ways to evaluate whether a new car has sealant, the most reliable method is to ask the dealer directly. If you want to make sure your vehicle is protected, you can always apply sealant or wax yourself, or have it done by a professional.