サビから金属を守る!鉄など金属のサビ止め・錆防止が手軽で清潔!
防錆紙を少量から販売!
買い物カゴを見る

錆と戦い続けるオヤジのコラム

「NO.14」 How to use VCI paper correctly No. 1

カテゴリ:【防錆紙の使い方

Let me focus finally on VCI paper from this time, although I have discussed various matters on rust preventive oil and anticorrosive polymer film so far.

It is known that VCI paper is wrapping paper which has a function to reduce the metal to corrosion.

If not familiar the above, kindly refer to the explanations in "VCI paper is helpful" and "The reason why VCI paper is useful" etc., since has been written for easy understanding.

I proceed my explanation on the assumption that you have a look at the technical contents tentatively.

 

I have been in contact with numerous users who have been using VCI paper. I have found the most common error among users has been that they have not properly understood the VCI paper is subjected to what kind of metal.

 

I feel so many people still believe VCI paper is effective in any metal.

Unfortunately, VCI paper does not exist which shows superior corrosion inhibiting effect  to steel, and at the same time with no bad impact on such as copper and zinc.

On the other hands, I cannot say VCI paper for copper is also sufficient against steel.

In other words, versatile VCI paper does not exist that can use for any metal.

 

Customers are liable to the misuse of VCI paper when they want to pack the assembly type products in which plurality metals co-exist. There is a possibility that would have been hit by unexpected corrosion without confirming whether what metal co-exist.

 

Let me introduce the parable I talk well.

The insecticides and pesticides on the market do not work to promote the growth of insects and propagate them even if misused against the insect to be defeated, there is just not effective.

But, it does not go to such as insecticides in VCI paper. If used incorrectly, VCI paper will lead to enhance corrosion.

 

Let's introduce the two cases that had been hit by unexpected corrosion.

The first story is related to zinc-coated steel sheet.

Let's consider the use of VCI paper as the countermeasure because the red rust has occurred in the products made with zinc-coated steel sheet. VCI paper for steel was used because the red rust is corrosion of steel. As a result, the red rust will not occur, but the products would have been covered with white rust by zinc corrosion.

 

The second case is with copper-plated steel products.

In the case of this product, VCI paper dedicated for steel was used, it is troubled by rust because it was steel.

But, one day the accident occurred, namely the plated copper had been splendidly discolored.

Fortunately, the discoloration did not reach to the plated copper and the function of the product was not impaired. However, it was a case that the commercial value was reduced as the appearance became worse.

■著者情報

  • 名前
    清水良直(しみずよしなお)
  • 略歴
    長野県出身1947年生まれ
    大学で界面化学を履修し,ごく微量の化学物質によるさまざまな現象に興味をおぼえた。
    社会人になって6年目に「防錆紙(ぼうせいし)」と出会い,金属のサビをごく微量の化学物質で防止する技術に感動。 以来,社内での出世を棒に振ってまで,研究や新製品の開発に従事しながら,業界団体での活動にも参加。
    会社を辞めた後も業界団体の教育活動「防錆技術学校」の講師として,防錆管理士を目指す若者の教育・指導を継続。
    2002年、アドコートの技術顧問に就任。
  • 主な雑誌投稿や著作
    防錆管理……防錆紙に関する解説記事,研究発表など
    コンバーテック……「防錆包装再考」シリーズ
    防錆技術学校……「気化性防錆材」などの教科書
  • 日本工業規格の制定・改正
    JIS Z 0303,JIS Z 1535,JIS Z 1519,JIS Z 0320,JIS Z 0321
  • 防錆についての想い
    金属製品の一時防錆にかかわってきた経験や技術をつうじて社会に貢献するとともに, 技術を伝承することによって後輩たちの育成に努めたい。
防錆について、防錆紙についてなど、サビに関する事なら何でもお問い合わせ下さい!防錆油より手軽に防錆したい、自社製品の材質にあった防錆紙の提案がほしい、防錆フィルムより強い防錆力が欲しい、そんなお困りごとを解決します!お気軽にご相談ください。お問合せフォームはこちら
ページトップへ