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Article: [Experiment] Use Vaseline to waterproof leather products

【實驗】使用凡士林對皮革製品進行防水處理

[Experiment] Use Vaseline to waterproof leather products

Waterproofing Leather Products

Hello, we are the work team of Hallelujah.
As the temperature and weather change, the autumn season has quietly arrived, and the time of changing seasons has arrived.
While I was taking a break from my summer clothes, I thought that the leather goods I own should also be cared for!

So at this time, I decided to try the care method that I have always cared about.
I'm sure you've all heard it. Is petroleum jelly a good choice for leather product care…
There's all kinds of information out there online, but you'll find out the truth by actually trying it yourself so put it to the test!
Before proceeding with the inspection, a brief introduction to Vaseline...

Vaseline

Petrolatum jelly is a highly pure mixture derived from petroleum and is used as a moisturizer for skin protection. It is a trademark of Unilever Corporation and is commonly used not only in Japan but also around the world. In this day and age, you can find it everywhere, and it is a cheap item that costs around 200 yen to 300 yen in drug stores or convenience stores.

【When used on human body】
Prevents dryness and forms a thin, oily protective film.
Hardly penetrates the stratum corneum.
Effective on burns, etc.

Can also be used for shoe abrasions, etc.
The effects can be expected.

Then [when used in leather products]
Prevents moisture in leather from drying out. It has a waterproof effect and makes the leather soft.
These effects can be expected. Based on these effects alone, Vaseline seems to be a very versatile moisturizer. In my mind, Vaseline gives people a strong waterproof feeling, which is common no matter where it is applied.
Even if there is no waterproof spray, using Vaseline can temporarily maintain the texture, so some people say that if it rains suddenly, Vaseline can be applied when using leather products.

Such stories are also common. By the way, the use of Vaseline may cause the color of the leather to change. Therefore, it is recommended to try it in an inconspicuous place before using it! With these considerations in mind, let's try it right away.

This time we use a keychain to test.
key bag

Tochigi leather key case. This is the key bag I have been using for six months↓

Key case 6 months use

It has gradually become richer in color. .

This time to make it clearer I will use Vaseline on the right half and do nothing on the left half,
So please observe based on this~
First we start from the state where the surface dirt has been wiped off.
Okay, let's start applying.

Caring for Leather Waterproof

I scooped up about as much Vaseline as the end of a cotton swab.
I thought it would expand quite a bit~, but six months of history is not that easy,
It surprisingly doesn't expand much.
So I scooped out the same amount again and applied it lightly again. . .

Caring for Leather Waterproof

Then wipe gently with a dry cloth...
This completes the application.
The impression is that it is painted very thickly

Caring for Leather Waterproof
The impression when actually applying is that it has to be applied carefully into the grooves.
At first glance, I don’t see much difference in gloss.
But when the light shines on it, the Vaseline side sticks out.
Caring for Leather Waterproof

It feels like it has been applied a lot, and when I touch it with my fingers,
Surprisingly not sticky, but rather moisturizing.

Caring for Leather Waterproof

And it doesn’t stick to your fingers at all.
Finally, I am also concerned about waterproofing;
Drop by drop...the difference here is so big that it surprised me.

Caring for Leather Waterproof

The Vaseline side is pretty waterproof when just dabbed on it.
The left side on the other hand which did nothing penetrated quite quickly.
Although I wiped it right away, the left side remained fully penetrated...a bit of a shock.

Caring for Leather Waterproof

In fact, after going through so many steps, I found Vaseline to be a very handy temporary, emergency moisturizer. For example, considering the characteristics of leather when going out, it cannot provide enough nutrition, etc. I personally recommend using a care cream specifically for leather products mainly, and only in special circumstances. For example, petroleum jelly can be used as a substitute when no other product is available.

Thank you for reading this far.
I will continue to observe and share the use of the key bag so stay tuned!

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