{"id":4452,"date":"2017-09-09T08:00:42","date_gmt":"2017-09-08T23:00:42","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=4452"},"modified":"2026-05-15T20:13:00","modified_gmt":"2026-05-15T11:13:00","slug":"crack-prevention-material-part-1","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/crack-prevention-material-part1\/","title":{"rendered":"About Crack-Prevention Materials (Part 1) | Comparison with Nafuroku"},"content":{"rendered":"

Hello.<\/p>\n

This is Enta.<\/p>\n

The other day, I thought I had posted it, but it hadn't gone up.<\/p>\n

My apologies.<\/p>\n

I\u2019d like to introduce a product that I found to be quite good while testing out various crack-preventing materials.<\/p>\n

I think Nafuroku is something everyone uses quite often.<\/p>\n

That's the one used in the simplified method, right? It's a very expensive product\u2014a real headache for directors.<\/p>\n

Also, I think that when used in spray applications, it often forms clumps that can cause clogs, but,<\/p>\n

I want to prevent cracks, but it's hard to find a good product.<\/p>\n

As a condition,<\/p>\n

1. Mix well.
\n2. It doesn't form a ball.
\n3. It's cheap.
\n4. No cracks form.
\n5. It's even better if it's registered with NETIS.
\n6. It doesn't prick your hand when you grip it.<\/p>\n

There are probably more, but I guess these are the kinds of criteria I use.<\/p>\n

The product used this time is from a store in Osaka,Tezac Co., Ltd.<\/a><\/span><\/strong>\u3000A company called \u201cToughlight RG<\/a><\/strong><\/span>\" a product.<\/p>\n

I tried using this.<\/p>\n

\"Entame's<\/div>\n

Here's what the packaging looks like.
\nThis one contains 20 kg.<\/p>\n

The ingredients are<\/p>\n

It appears to range from 0.91 kg (standard) to 1.82 kg per cubic meter.<\/p>\n

I bought it as part of my creative experimentation and to try mixing it in, so I used 0.91 kg.<\/p>\n

\"\"<\/div>\n

It\u2019s roughly a heaping handful, weighing about 0.1 kg. (0.11 kg per BT)<\/p>\n

I didn't use a mixer or anything like that when adding the ingredients; I just roughly mixed them in by hand.<\/p>\n

Nothing like a thorn pricking my hand happened.<\/p>\n

So I tried playing it, and surprisingly, it didn't get too sticky (though it did get a little sticky), and I was able to use it comfortably.<\/p>\n

\"Entame's<\/div>\n

It's mixed thoroughly.<\/span><\/span><\/strong><\/p>\n

I was wondering if it might end up being a bit more round, but this is actually pretty easy to use.<\/p>\n

The unit price is 1,700 yen per kg. (Estimated price)(I think the unit price varies depending on the supplier.)<\/del><\/p>\n

20 kg for 1,700 yen = 34,000 yen (This is just a rough estimate!)<\/p>\n

Assuming 0.91 kg per cubic meter, there is enough for approximately 18 cubic meters.<\/p>\n

I think it falls well within the scope of what can be considered creative ingenuity.<\/p>\n

What's more, if no cracks form, there will be no need for touch-ups, so it might actually be a better deal when you consider the total cost.<\/p>\n

If it were a little cheaper, I'd use it more... lol<\/p>\n

I haven't yet seen how much this reduces the crack occurrence rate, so I'll write about that in a follow-up post.<\/p>\n

By the way, since there\u2019s mortar inside the frame, I\u2019d like to conduct experiments using both 0.91 kg and 1.82 kg.<\/p>\n

I'll also check the difference between that and the test piece lol<\/p>\n

See you later.<\/p>","protected":false},"excerpt":{"rendered":"

Hello. This is Enta. I thought I\u2019d posted this the other day, but it turns out I hadn\u2019t. My apologies. I\u2019d like to introduce a product I tried while testing various crack-preventive materials that I thought was pretty good. I think Nafuroku is the one most people use frequently. With a simple formwork\u2026<\/p>","protected":false},"author":2,"featured_media":4455,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[29,37,33],"tags":[52,60,139,209,693,694,695,696],"class_list":["post-4452","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-frame-spraying","category-mortar-spraying","category-ingenuity","tag-52","tag-60","tag-139","tag-209","tag-rg","tag-694","tag-695","tag-696"],"acf":[],"yoast_head":"\n\u30af\u30e9\u30c3\u30af\u9632\u6b62\u6750\u306b\u3064\u3044\u3066\uff08\u305d\u306e1\uff09\uff5c\u30ca\u30d5\u30ed\u30af\u3068\u306e\u6bd4\u8f03 - 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