Hello, everyone.

This is Enta.

It's Monday, lol

Starting today, we will be conducting a two-day training session in Odawara on measures to prevent stone wall collapses.

The training covers the construction methods step by step, and participants will get hands-on experience.

We plan to make sure they thoroughly learn the management methods, quality standards, and construction techniques.

I’m also hoping to capture that scene on camera and share it with all of you.

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But that's beside the point.

How to Make a Packer (Part 4)

This is from the tip of the packer.

After that, I ran to the warehouse, cut about 30 cm off a spare φ90 packer, and got it ready.

Cut the packer to roughly the same width as the span seal (butyl rubber).

At this point, it's best to use plenty of Span Seal without skimping.

It's important to make sure you don't let the tip leak.

Carefully place the span seal inside.

Here's what it looks like when you open it.

It's best if it's on the longer side. If it's too short, it becomes harder to tighten.

Once you've put it inside, you'll need to cinch the elastic seal, but I think it's best to fold it neatly first.

There’s no particular rule about why I write “I think” at this point!

As long as there are no leaks in the end, it's fine, so it doesn't matter how you do it.

Place the span seal inside and fold the packer once.

Fold the creased part neatly, like an "M," and then...Track numbers, etc....to narrow it down.

In my case, I recommend using a hose clamp, and I use one that fits the size.

For items like this, if there are two or four steel wires, use a band that’s about 70–90 mm wide.

If there are only a few, a smaller one is fine.

You can usually find them at home improvement stores, but if you're going to buy one, I recommend the ones that cost 150 yen each.

These hose clamps are inexpensive—ranging from about 150 to 350 yen at home improvement stores—and

Zip ties are fine, but considering tensile strength, we recommend using steel ones.

 

With this hose clamp, you can tighten it quickly and securely with an impact wrench.

And if you tighten the zip tie securely over this, it’ll be even better.

Since it's made of metal, I'll wrap it tightly with wide vinyl tape just in case it gets caught on something.

This way, even if it tries to spread out, you can secure it firmly with vinyl tape, cable ties, and a hose clamp.

Please make sure to secure the tip extra tightly!

 

Track number really highlights the difference between those who can narrow it down effectively and those who can't.

That's why I use a hose clamp.

We want to prevent mistakes as much as possible.

I think it's fine to tie a square knot at the end.

 

See you later.