OUTDOOR
2026.07.09
Comparing water-repellent sprays in preparation for sudden heavy rain! Which is better, Cainz or Kohnan?
I actually used waterproof sprays from Cainz and Kohnan and checked their ease of daily use. During the changeable summer weather, which waterproof spray is better for preparing for sudden heavy rains!?
Sneakers and hats! Fluororesin blended, Cainz's waterproof spray
Cainz's "Waterproof Spray for Clothing and Fabric Products" contains fluororesin. As stated on the packaging, it is a waterproof spray for clothing and fabric products. One of its advantages is that it can be used on a wide range of items such as sneakers, hats, and bags. The cap is small, making it easy to open and close, which enhances usability.
This time, to check its waterproof performance, I will spray a portion as shown in the image above. I sprayed enough to make the surface slightly wet and let it dry in a well-ventilated area for about 20 minutes. Once dry, I will check the water repellency effect.
When I poured water on it, the left side that was not sprayed with "Waterproof Spray for Clothing and Fabric Products" absorbed the water, while the right side that was sprayed retained water droplets on the surface. It is evident that it is repelling water much better than the untreated section.
At the feet level, it also guards against dirt, which seems helpful in keeping them clean for a longer time. In my case, my sneakers tend to get dirty when walking with my dog, but the mud can be easily wiped off with wet wipes, significantly reducing the maintenance effort.
At the feet level, it also guards against dirt, which seems helpful in keeping them clean for a longer time. In my case, my sneakers tend to get dirty when walking with my dog, but the mud can be easily wiped off with wet wipes, significantly reducing the maintenance effort.
Hats also prevent water droplets from soaking in. The other day, even though it suddenly rained, only water droplets remained on the surface, and the inside did not get wet. Moreover, after getting into the car, I could easily remove the water droplets by lightly wiping them with a tissue. I had never done waterproof treatment on a hat before, but it seems convenient to spray it just in case of sudden rain.
If you spray it on your walking bag, you can rest assured when placing it on benches or grass that might be dirty. Even if your bag gets wet from your dog's water bottle, you can quickly wipe off the water droplets.
It dries in just 20 minutes, so waterproofing can be done at the perfect moment just before leaving. Since I started using it, my family has also started using it for their commuting backpacks, and we store it in a place easily accessible by the front door.
It dries in just 20 minutes, so waterproofing can be done at the perfect moment just before leaving. Since I started using it, my family has also started using it for their commuting backpacks, and we store it in a place easily accessible by the front door.
Product name / Waterproof Spray for Clothing and Fabric
Price / 598 yen
Ingredients / Petroleum-based Hydrocarbons, Fluoropolymer
Content / 420ml
● Cainz
Price / 598 yen
Ingredients / Petroleum-based Hydrocarbons, Fluoropolymer
Content / 420ml
● Cainz
Strong water repellency! Kohnan's Silicone-based Waterproof Spray
Next, I'll try the "LIFELEX Waterproof Spray" that I got from Kohnan. It's a silicone-based waterproof spray, so it's suitable for water-washable or dry-cleanable fabrics (nylon, polyester, cotton, wool) and textile products like folding umbrellas.<
When I actually used it, Kohnan's "LIFELEX Waterproof Spray" has a stronger alcohol scent. Cainz's "Waterproof Spray for Clothing and Fabric" had a slightly sharp solvent smell, so preferences may vary in this regard.
This time, I will use it on my dog's raincoat and umbrella to check its actual effectiveness.
This time, I will use it on my dog's raincoat and umbrella to check its actual effectiveness.
When I tried it on the raincoat my dog wears, the silicone-based waterproof spray has indeed outstanding water-repellent power! Water droplets roll off without leaving almost any residue. It repels water so well that it looks pleasing to the eye.
Since my dog runs and dives into the mud while wearing the raincoat, it almost always ends up muddy after use. Initially, it demonstrated excellent water-repellent effects, but over time, it became gradually harder to repel water.
Although I felt that I was increasing the frequency of washing and it was a hassle, it seems that from now on I can keep it clean with just a light wipe.
Although I felt that I was increasing the frequency of washing and it was a hassle, it seems that from now on I can keep it clean with just a light wipe.
When I spray it on my folding umbrella, it also allows water droplets to flow off quickly, reducing the trouble of handling a wet umbrella.
I honestly thought, "Isn't water repellency on an umbrella really necessary…?" but just by giving it a quick shake when closing the umbrella, the droplets disappear, which makes it pleasant to handle when entering stores or getting on trains.
Although the range of items that can use the silicone-based waterproof spray is limited, it seems reliable when you want this powerful water-repellent effect.
Although the range of items that can use the silicone-based waterproof spray is limited, it seems reliable when you want this powerful water-repellent effect.
By the way, while the silicone-based waterproof spray creates a strong water-repellent film on the surface, it cannot be used on vinyl or rubber products, and there may be marks left from the spray, so it’s safer to avoid using it on favorite items that you don't want to look damaged.
I accidentally overlooked this cautionary note and sprayed it on a vinyl umbrella... As expected, I ended up with marks and regretted it. Please be careful, everyone.
I accidentally overlooked this cautionary note and sprayed it on a vinyl umbrella... As expected, I ended up with marks and regretted it. Please be careful, everyone.
Product Name: LIFELEX Waterproof Spray
Price: 547 yen
Ingredients: Silicone resin, Isopropyl alcohol
Content: 420ml
●Kohnan Trading
Price: 547 yen
Ingredients: Silicone resin, Isopropyl alcohol
Content: 420ml
●Kohnan Trading
If you can use them correctly, there’s nothing to fear! Having both gives a sense of versatility
If you're choosing based on water repellency, Kohnan's silicone-based "LIFELEX Waterproof Spray" is perfect. When I actually applied it to an umbrella, I was amazed at how easily water droplets flowed off with just a light shake.
On the other hand, for sneakers, bags, and clothing, the fluorine-based "Waterproof Spray for Clothes and Fabrics" I got from Cainz is just right! In my house, we use it frequently, and I like that I can easily spray it on everyday items like hats.
For those who want to "just have one on hand," I'd recommend Cainz, but being able to differentiate between them is versatile.
What I felt while comparing them is that it's more important to choose based on what you want to use it for than just water repellency. In my case, Cainz's "Waterproof Spray for Clothes and Fabrics," which can be used on sneakers, hats, and bags, matched perfectly. How about starting waterproof measures to protect your favorite bags and shoes from rain?
On the other hand, for sneakers, bags, and clothing, the fluorine-based "Waterproof Spray for Clothes and Fabrics" I got from Cainz is just right! In my house, we use it frequently, and I like that I can easily spray it on everyday items like hats.
For those who want to "just have one on hand," I'd recommend Cainz, but being able to differentiate between them is versatile.
What I felt while comparing them is that it's more important to choose based on what you want to use it for than just water repellency. In my case, Cainz's "Waterproof Spray for Clothes and Fabrics," which can be used on sneakers, hats, and bags, matched perfectly. How about starting waterproof measures to protect your favorite bags and shoes from rain?
- * silicone waterproof spray
- *Fluorine waterproof spray
- Kainz
- Konan
- ayana
- waterproof
- waterproof spray







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