Corrosion is our history-book.

Bot met een strip metaalIt all started, in the 40’s, with a screw.
Not just any screw - a surgical screw.
Sven Johansson, Professor of Medicine and an International authority on bone surgery, was working on a well-known problem. The metal in surgical screws dissolved under the action of body fluids.
Professor Johansson experimented with screws made of various alloys, without success. He then attempted to identify a means of treating the screw before it was inserted in the patient.
Astra, the Swedish pharmaceutical company, had a weight-reducing medicine called Dinitroortocresol. Amazingly enough, this product fulfilled Professor Johansson’s requirements precisely. The surgical screw was no longer subject to the action of body fluids - it had been protected against corrosion.
A Swedish Professor of Medicine had made a vital discovery in the field of bone surgery. But his discovery was of equally great importance for a world which is built to such a great extent on metals that corrode. A subsidiary called Astra-Dinol was established. The new effective rust-protector was soon in demand far beyond the borders of the field of medicine.

The nightmare of rust.
At first, it was the car-owners of the 50’s who were most interested in stopping rust in the new frameless light-weight chassis, where corrosion spread like wildfire in the cavities of the design.
The rust-preventive was simply poured directly into the cavities and brushed over the underside of the car. This product was know as Dinitrol 33, and although the application technique was not completely satisfactory it has kept many cars of the 50’s on the roads until our own day.

Individual spray techniques.
Toward the close of the 50’s, a technique was introduced for spraying rust-preventive into the cavities in the chassis. Dinol led the way with individual spray techniques, training and special tools for different makes of cars. This marked a virtual revolution in rust-prevention technology for automobiles.
Experience of application of rust-preventive to cars proved to be highly useful in a number of other industries.
In 1972, Astra-Dinol of Sweden acquired a majority holding in Tuff-Kote Inc. of the US. An international rust-prevention organization was developed.
In 1979, Astra-Dinol was acquired by the Axel Johnson Group, a major Swedish industrial concern. The company’s name was changed, first to Tuff-Kote Dinol and then to Dinol International.
But we’ve never forgotten that original screw. It’s a continual reminder that we have to remain open to new ideas and stay on the lookout for new applications for our expertise and our products.