4x Stronger Tear-Resistant Shoji Paper: Fade Prevention & Long-Lasting! Tips from a Tatami Shop on How to Apply It So It Won't Peel

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“I’m worried that even if I replace the shoji, it will be torn immediately by children or pets.”
“If I’m going to do it, I want to choose shoji paper that lasts a long time.”

Many people probably think this way.

Hello, this is Maeda Tatami Shop in Morioka, Iwate.

Recently, I feel that more people are choosing “things that last as long as possible” for both tatami mats and shoji screens.

Regarding shoji paper, more people are requesting types that are more tear-resistant than the standard ones.

So, this time, I will feature Asahipen’s “UV-Cut 4x Stronger Tear-Resistant Shoji Paper.”

While it is a convenient shoji paper that is durable and has UV-cut functionality, you need to be careful when actually applying it, as it can be difficult to cut with a utility knife and the tension of the paper can cause the edges to peel easily.

In this article, I will introduce the features of tear-resistant shoji paper and tips on how to apply it so it finishes cleanly and doesn't peel.

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Why is it popular? 3 benefits of “Asahipen 4x Stronger Tear-Resistant Shoji Paper”

1. About 4 times the strength of JIS standards, making it tear-resistant and long-lasting

Asahipen's "UV-Cut 4x Stronger Tear-Resistant Shoji Paper" is, as the name suggests, characterized primarily by its durability.

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According to the manufacturer, it is about four times stronger than the minimum bursting strength specified by the JIS standard for shoji paper.

It is more tear-resistant than standard shoji paper, making it an appealing product for households that want to use it for as long as possible.

Shoji paper is surprisingly prone to damage during daily life.

It is not uncommon for it to get torn when hit by a vacuum cleaner nozzle, bumped by a hand while carrying items, or poked by a child.

Even a small hole can sometimes cause the tear to spread once it starts.

In that regard, choosing durable shoji paper from the start makes it easier to reduce tears caused by minor contact.

Recently, even at our shop, when we inform customers that "we have both regular and tear-resistant shoji paper," a significantly larger number of people are choosing the tear-resistant type.

I have the impression that this wasn't the case as much before.

Just as more people are choosing tatami mats made of Japanese paper or resin rather than just natural rush grass, perhaps the trend for shoji paper is also shifting toward wanting to "use it for as long as possible once it's installed."

I also talk about these recent customer needs on Stand.fm, so please check it out below if you'd like.

▼ Also worth listening to

If you want to reduce the number of times you need to replace your shoji paper, choosing one based on durability is one effective approach.

2. Blocks approximately 90% of UV rays, helping to prevent indoor fading

This shoji paper is not just durable.

It is treated with a UV-cut finish, and the manufacturer states that it blocks approximately 90% of ultraviolet rays.

In a Japanese-style room, the color of tatami mats and furniture gradually changes due to the sunlight entering through the windows.

Especially in rooms with good sunlight, you may notice a difference in color when comparing the tatami near the window to the tatami in the back of the room.

Of course, shoji paper alone cannot prevent all sun damage or discoloration.

Even so, being able to suppress the ultraviolet rays coming through the shoji is a significant advantage, isn't it?

It not only makes the shoji itself last longer, but it also provides protection against UV rays for the interior, such as tatami mats and furniture. I believe this is one of the reasons why this product is chosen.

Especially in rooms with tatami mats, it is worth paying attention not only to tear resistance but also to the UV-cut function.

3. Retains the texture of traditional Japanese paper despite its durability

When you hear "tear-resistant shoji paper," you might imagine a vinyl-like texture.

Asahipen describes this product as "tear-resistant shoji paper with the beautiful texture of Japanese paper."

The product number 5401 featured here is a plain type. It is a Japanese-made product sold as enough for two shoji screens, with a width of 94 cm and a length of 3.6 m.

The good thing about it is that you can prioritize durability while still retaining the traditional look of shoji.

It is not a plastic-type shoji paper, so if you want to replace your paper with something durable without significantly changing the atmosphere of a traditional shoji, this would be an easy product to choose.

Even just changing the shoji paper can transform the impression of a Japanese-style room.

You don't just want to think about durability; you also want to preserve the light entering the room and the traditional atmosphere of the Japanese-style room.

In such cases, durable shoji paper that retains the texture of Japanese paper is the perfect choice.

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Two mistakes amateurs often make when applying '4x stronger shoji paper'

If it's tear-resistant and durable, doesn't it seem like it would be easier to apply than regular shoji paper?

However, the actual application process is a bit different.

Because the paper itself is strong, you might encounter failures in areas that you wouldn't worry about with regular shoji paper.

You should be especially careful about two things: cutting with a utility knife and what happens after the applied paper dries.

1. The utility knife is dull, causing the cut edges to become ragged

The utility knife blade is quite important for achieving a clean finish with tear-resistant shoji paper.

Since durable shoji paper is strong, it won't cut cleanly with a dull blade.

If the blade gets stuck halfway or pulls on the paper, the cut edges will become frayed.

Even if you applied it perfectly until the end, if the edges end up jagged after trimming, the overall finish will look poor immediately.

When replacing shoji paper yourself, you might prepare the utility knife, but not many people prepare plenty of replacement blades.

However, this is something you should definitely have on hand.

Even when we cut shoji paper at our shop, we don't force ourselves to keep using a blade that has become dull. As soon as the sharpness drops a little, we snap off the tip to expose a new section.

In some cases, it is fine to snap off the blade and fold it again after just one cut.

Replacement blades sold at 100-yen shops are perfectly fine. If you have a pack of 10 or so ready, you won't hesitate to change the blade.

Rather than continuing to use an old blade because it 'still seems sharp enough,' you will get a much cleaner finish if you use new blades frequently.

If you are applying tear-resistant shoji paper, have plenty of replacement blades on hand.

This is a point I want you to keep in mind before you start the work.

I have explained the importance of cutter blades several times in my videos as well.
Check them out below if you like.

2. The paper's tension is strong, causing it to peel from the edges

Another thing to be careful about is peeling after the application is finished.

Because durable shoji paper is thicker and sturdier, the tension it exerts when drying is also stronger.

It may look beautiful right after you apply it, but after a while, the outer edges might start to lift. If it progresses further, it may even peel off completely from the edges.

If that happens, there was no point in spending all that time replacing the paper.

You should be especially careful with the outer perimeter of the shoji frame.

The outer perimeter is more susceptible to the tension of the paper than the thin inner lattice, and if the glue application is weak, it may succumb to that force and lift.

Precisely because the shoji paper is durable, it is necessary to ensure it is firmly adhered.

You can apply it using just regular shoji glue, but at our shop, we use a little trick with the glue when installing tear-resistant shoji paper.

In the next chapter, I will introduce in detail how often to change your cutter blade and how to prepare the glue so that the shoji paper does not peel off from the edges.

Pro Tips! How to Neatly Apply "4x Stronger Tear-Resistant Shoji Paper"

Applying durable shoji paper isn't just about applying glue and sticking it on.

Especially with sturdy paper like "4x stronger tear-resistant shoji paper," the cutter used for trimming and the measures taken against tension after drying determine the final result.

From here on, I will introduce the points we are careful about when installing shoji screens at our shop.

Tip 1: Snap off the cutter blade after every single strip

First and foremost is the sharpness of the cutter blade.

I mentioned this earlier, but it is something I want you to be especially conscious of when applying tear-resistant shoji paper.

While a new blade cuts smoothly, a blade that has been used even a little can get stuck halfway through.

If you force it to pull, the cut edge may fray, or you might end up pulling the paper you just carefully applied.

That is why I recommend not being stingy with your cutter blades.

Snap off the tip after every strip. That level of frequency is fine.

Rather than continuing to use a blade thinking "it's still sharp enough," you will get a cleaner finish by using new blades frequently.

Replacement blades are available not only at home centers but also at 100-yen shops. If you are replacing several shoji screens, it is a good idea to have a pack of 10 or so ready in advance.

Even if you spend money on the shoji paper itself, it is a waste to compromise the finish by trying to save on cutter blades.

The final step of trimming off the excess paper is an especially important process that determines the appearance.

Use a sharp blade. That alone will significantly change the finish.

For those who don't know how to snap off a cutter blade, I have explained it in my past videos, so please refer to them if you'd like ↓.

Tip 2: Mix 10-20% quick-drying wood glue into the shoji paste

Next, I'd like to introduce a trick for the paste.

Tear-resistant shoji paper has a relatively strong tension when it dries.

Because of this, if you apply it with the same feeling as regular shoji paper, it may lift or peel off from the edges.

At our shop, when applying such durable shoji paper, we sometimes use a method of mixing a small amount of quick-drying wood glue as an additive to the shoji paste.

A good guideline is about 10% relative to the paste. Depending on the situation, we may increase it to about 20%.

What you want to be especially mindful of is the outer perimeter of the shoji.

The inner lattice parts are of course important, but since the perimeter is more susceptible to the tension of the paper after drying, it is prone to lifting if the adhesion is weak.

Therefore, the idea is to adhere the outer perimeter a little more strongly.

When you are worried that regular shoji paste alone isn't enough, using a small amount of quick-drying wood glue as an auxiliary agent makes it harder for the paper's tension to overcome the bond.

However, it is not the case that the more you add, the better it is.

If you mix in a large amount of wood glue, it may become difficult to peel off when you replace the paper next time.

The key is not to add a lot from the beginning, but to mix in a small amount as a supplement. right?

Also, the appropriate construction method varies depending on the condition of the shoji and the base. It is safer to proceed while checking the adhesion in an inconspicuous area.

It is a small detail, but it is a part that makes a surprising difference with tear-resistant shoji paper.

Tip 3: Clean off old shoji paper and glue thoroughly before applying

It is easy to focus only on the new shoji paper, but the preparation of the base beforehand is actually just as important.

After peeling off the old shoji paper, are there any paper fibers or old glue left on the crossbars or outer frame?

Even if you apply new glue over that, the adhesion may not be stable.

Especially if thin remnants of old paper remain on the outer frame, the new shoji paper may not adhere directly to the wood, and it is possible that it will lift off along with the old paper.

First, moisten the old shoji paper thoroughly with water to soften the glue, then peel it off slowly.

Pulling it off forcibly while dry can damage the crossbars or cause small pieces of paper to remain.

After peeling off the shoji paper, use a damp cloth or similar to remove any remaining glue or paper scraps. After that, let the shoji dry completely before applying the new paper.

If the base is clean, the glue will also be easier to apply evenly.

When people talk about re-papering shoji, they tend to focus on "how to apply the new paper," but performing the removal work carefully beforehand is also an important step for a beautiful finish.

Please also refer to the video below ↓

List of tools to prepare before construction

If you realize you are missing something while in the middle of replacing your shoji paper, your work will come to a halt.

It becomes hectic if you start looking for tools after you have already applied the glue, so make sure to gather everything you need beforehand.

When applying this "4x Stronger Tear-Resistant Shoji Paper," having the following tools will make the work easier.

• Asahipen UV Cut 4x Stronger Tear-Resistant Shoji Paper, Item No. 5401, Plain, Width 94cm x Length 3.6m

• Shoji glue

• Auxiliary agents such as quick-drying wood glue

• Utility knife

• Replacement blades

• Shoji cutter guide or ruler

• Glue brush

• Towel or sponge to dampen the old shoji paper

• Shoji paper remover if necessary

Among these, the one thing I don't want you to forget is the replacement blades.

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It is surprisingly common for people to prepare the shoji paper, glue, and utility knife, but forget to prepare replacement blades.

Sharpness is especially important for durable shoji paper like this, so it is better not to try to finish the job with just one blade.

Also, the product is 94cm wide by 3.6m long, which covers two shoji screens, but the size of shoji screens varies depending on the house.

Before purchasing, please measure the actual width and height of your shoji screens to ensure you have enough length.

Just by lining up your tools before you start, the process of re-papering shoji screens becomes much easier.

Summary: With a few professional tips, '4x Stronger Shoji Paper' becomes easier to apply neatly.

Asahipen's 'UV-Cut 4x Stronger Tear-Resistant Shoji Paper' is about four times stronger than the lower limit of the JIS standard for bursting strength and also features the ability to block approximately 90% of UV rays.

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If you are going to the trouble of replacing your shoji paper, you want it to last as long as possible. In that case, this is a shoji paper worth considering.

However, because it is a durable paper, there are a few tricks to applying it.

What you should especially keep in mind is to change your cutter blade frequently.

And if the paper has a lot of tension, you can also mix a small amount of an auxiliary agent, such as quick-drying wood glue, into the shoji paste to reinforce the adhesion around the edges.

Furthermore, do not forget to properly remove the old paper and paste to prepare the surface.

Re-papering shoji screens is not a very difficult task when you look at each step individually.

However, if you use a dull cutter or apply the paper while leaving old paste behind, it will make a difference in the final finish.

Even if it is a bit tedious, prepare the surface carefully.

This might actually be the shortest path to a good result.

Of course, if you feel like

'I don't have time to remove the shoji screens,'
'It's too much work to replace many screens,'
'I'm worried about failing if I do it myself,'

then there is no need to force yourself to do it as a DIY project.

If you are considering replacing your shoji screens in the Morioka City area of Iwate Prefecture, please feel free to consult with Maeda Tatami Shop.

[Author] Masatoshi Maeda, Representative of Maeda Tatami Shop
・Second-generation owner of Maeda Tatami Shop, which has been loved by locals in Morioka City, Iwate Prefecture for over 60 years
・Representative of 'Washiya,' a shop selling tatami, fusuma, shoji, wallpaper, screen door replacement services, and fusuma paper
・A fusuma-focused YouTuber with 10,000 subscribers
・Holds certifications as a Tatami Skills Technician, Tatami Craftsman Instructor, and Wall Covering Skills Technician
・'Sincerity toward customers' is the foundation of his work. A 53-year-old who continues to cherish and uphold that belief.

[About Maeda Tatami Shop]
60 years of trust and experience in Morioka!
For tatami, fusuma, shoji, wallpaper, and screen door replacement and renovation,
we have 1st-grade Tatami Production Skills Technicians, Tatami Training Instructors, and 1st and 2nd-grade Wall Covering Skills Technicians on staff.
Maeda Tatami Shop / Interior Maeda


[Contact Information]
9-16 Tenshoji-machi, Morioka City, Iwate Prefecture
019-647-3555
Business Hours: 9:00 AM - 5:00 PM
(Until around 3:00 PM on Saturdays)
Closed: Sundays
m.masa.tatami@gmail.com
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