How long does the car glass coating take for hardening?

Car glass coting needs time for hardening.

One of the features of car glass coating (which means the solution changes to glass) is long durability, not like car wax or simplified coating.
It cannot be removed by raining or daily car wash, so it can protect your precious car for a long time.

However, on the other hand, it takes longer time for hardening than other coating.
Then, why does it need a time for hardening?

This time, we would like to explain about the reason, hardening time, and cautions while hardening!

The reason why car ceramic coating needs time for hardening?

・Comparison of glass coating and other coating or wax

Let’s compare 100% real glass coating and others in hardening.

【Wax & polymer】

They cover the car body after drying.
Almost all of them dry within from 30 minutes to 1 hours completely.
However, it doesn’t adhere to the car paint surface, just put on the car body, so it is not durable.
It can be removed by car washing and raining.

【Glass coating】

At one the solution expose to the air, hardening is starting gradually.
Regard as the components, please see the below.

It takes 12 hours to the surface harden.

After it harden fully, it adheres to the car paint surface, so we cannot make a revision.
Therefore, we need to use a polisher if we want to remove the glass layer.
The strong glass layer perform the long durability.

How does the glass coating produced?

One of the biggest Pika Pika Rain Glass Coating’s selling points are hardening, but many people might not know how the solution in the bottle produce to the glass.

Then, in this section, we would like to explain the theory with an example of Pika Pika Rain Glass Coating.

The main components after applying are glass and alcohol.
At this time, it isn’t 100% glass, because there are alcohol and other things as impurities.
However, when the solution expose to the air, the hydrolytic happens.
We’re afraid to say that details are company secret, but after hydrolytic, alcohol + α volatilized and the remained com are “100% glass layer”.
Long hardening time is related to this theory.

Moreover, after that, the car paint surface and glass layer will adhere gradually for 2 weeks.
At once they adhere, it won’t be removed by washing and deterioration.
It can protect the car body with the durable glass layer.

“Why don’t you apply 100% glass solution? Why do you take a difficult containing?”
Some people might think like above, but 100% glass is very same glass like a windshield.

Please imagine… it is impossible to apply the glass, isn’t it?
That’s why application with the solution which has high glass leve; is difficult.

The difference between surface hardening and full hardening

We’ve already explained above, the glass coating needs a long time to cure fully.

For example, in case of Pika Pika Rain Glass Coating,
After 12 hours application for their surface hardening and 2 weeks for full hardening.

Please see these difference below.

About surface hardening

It means that the glass coating solution which applied to the car body is on the way of hardening the glass coating solution.
Also it is very sensitive in this period.

In case of Pika Pika Rain Glass Coating, first the glass coating solution reacts chemically with the water in the air, and it harden gradually.

It doesn’t harden from the inside of the solution, harden from the surface which exposed to the air slowly.

About full hardening

It means that the glass coating is finished as the solution harder fully and adhere to the paint surface.
From application to finished hardening takes for about 2 weeks.
After full hardening, you can do washing and caring as usual.

Nano Pika Pika Rain application and the second layer application are available after full hardening.

We heard that some detailers keep customers’ car for a few weeks and wait for full hardening.

If you don’t want to keep your car anymore after you got it, please take this opportunity to try DIY glass coating application!
Pika Pika Rain Glass Coating doesn’t have to keep your car to detailers as you can drive after surface hardening (after 12hours application).

Cautions while under hardening

Next, we would like to introduce cautions after you applied the glass coating.

Cautions for surface hardening
The glass coating stars surface hardening after 2 hours application, and it will finish within 12 hours.
In this period, please make sure
“not to get wet”, “not to drive” and “not to use a cover”.

Do not allow your car get wet for 12 hours after application!

It also include rain, night and morning dew.
Also please do not wash your car in this period.

However, we understand that all people don’t keep their car in a garage, and it rains suddenly while application.
Then, what should we do in these cases?

If your car gets wet, please move your car to other place which has a roof.
After that please wipe the water with a microfiber cloth gently.

Avoid driving

If you drive your car after application, the glass layer will be removed by stepping stones,
or there is possibility to gets dirty due to dust.

Therefore, please avoid driving if it’s essential such as suddenly raining or keeping the car in the different place.

Avoid using a cover

If you use a cover before the glass coating harden completely, there is possibility to remove the glass coating when you take on and take of the cover.

However, sometimes we have inquiries from our customers,
“I want to use a cover because I don’t deal with raining immediately!”

As we have already mentioned, we don’t recommend to use a cover.
Because, if you leave your car after raining for a long time, the glass layer become foggy and you need to polish with a compound if it it’s serious.
Please decide yourself in view of above risks.

How deal with foggy areas while surface hardening?

First, please wipe the area with a microfiber cloth.
Even though it cannot be removed, please apply left glass coating solution to the foggy area with a sponge and spread it with another microfiber cloth.

Cautions while full hardening

When the surface hardening finished (12 hours), after 2 weeks is a period of full hardening.
Regard as cautions in this period,
“do not leave the water for a long time”.

Do not leave the water for a long time

It is not so strict such as the surface hardening, but, the water which you left for a long time causes water spots.
Therefore, if it starts to rain, please wipe the water on the car body with a microfiber cloth softly.

You can car wash your car in this period.
However, please make note that washing with hand, not using a car wash machine.

How deal with foggy areas while full hardening?

Hardening has already started, so you should polish with a compound if you remove foggy areas. Then you wash your car the area and apply again with a left solution.

If you’re planning reapplication, you should better wait until the area harden fully and reapply whole a car.

After full hardening

Now, we would like to explain about glass coating results on the car body in detail.

Point 1. Gloss

First of all, you can find beautiful gloss particular to glass coating!

Your precious car gets amazing gloss like a brand new car!
Of course, a brand new car get deeper and more beautiful.

You become attached to your precious car more if it is glossy, and daily driving could be more fun.
We often heard from our customers who tend to indulge in a sense of their superiorities when your car is shiner than other cars in a car park.

Point 2. Water repellency

Before application, usually the water remains on the car body and it causes water spots, and it also wiping is time-consuming.

However, you don’t have same trouble at once your car body was applied by Pika Pika Rain Glass Coating!
Its water repellency is outstanding!
The water is sliding, so wiping get easier that before application!

Point 3. Anti-dirt power

Pika Pika Rain Glass Coating has nice anti-dirt power, too!
As we said above, the water sliding, so there are less risks for water spots.

Also the car body gets dirty by mud in rainy days.
However, you don’t worried about it anymore!
Dirt can be removed easily due to the glass coating.
Only washing with the water is fine for light dirt! It decrease effort for wiping.

It can be measures for pollen or yellow sand, too!

Do you know that they are harmful to your precious car?
It’s very hard to remove them at once they adhere to the car body.
They affect the car paint surface badly.

However, Pika Pika Rain Glass Coating can protect from they, so you don’t have to be worried about the damage to the car paint surface.

We also mentioned about pollen and yellow sand detail below;

Do you understand the good points of glass coating?
It needs 2 weeks until the glass layer harden fully, but durability is 3 years!


After all, car glass coating take a long time for hardening!
However, the durable is much better than other car wax or coating.
(We don’t know any other more durable coating…)

“I worried about raining while hardening…”
“I don’t want to take a time for application!”

If you think like above, we would like to recommend simplified coating or car wax, but if you don’t want applying again and again, or want to keep your precious car in beautiful condition, we would like real glass coating.

Please follow right application ways and have a nice car life!