How Does Nanotechnology Benefit Screw Manufacturing?

The Solution From Ciser Promises an Economic Increase in Corrosion Resistance of Up to 20 Times.

Ciser, a leader in fastener production in Latin America, was one of the first to adopt nanotechnology-based coatings to improve the resistance and longevity of its products. The company has a strong tradition of innovation and invests heavily in R&D, which has led to the creation of several patented technologies or technologies in the patent process, aimed at extending the lifespan of fastening components.

Fasteners used in construction and industry can be made to last longer with this solution, saving money in the long run. This is especially useful for fasteners exposed to adverse environmental conditions, such as salty air or high impact, as well as for fasteners that require corrosion protection coatings that do not alter their original shape.

The coatings enabled by nanotechnology have several advantages over more conventional methods, including greater corrosion resistance at a lower cost and less interference with the dimensions of the fasteners. According to Aluisio Goulart Lopes, Head of Innovation and Digital Transformation at Ciser, “the process adds value to our clients’ products and services across various fields.”

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Nanotechnology

Ciser’s nanotechnological sealants are products of chemical studies at the molecular level. The original offering was called Nanotec and served as a sealant for metallic components that had been coated with zinc electroplating and other alloys. Because it is a ceramic-based resin that generates a very thin protective film that adheres to the existing surface, this technology is classified as nanotechnology. “The end result is a component that is highly resistant to corrosion at a very low cost,” says Aluisio.

A laboratory “salt spray” test conducted according to the internationally recognized ASTM B-117 standard guarantees the effectiveness of the technique. It is a process that accelerates the rusting process. The fasteners are placed in a controlled environment and sprayed with seawater simulating a salinity of 5% until the first signs of wear appear. The saline mist accelerates the corrosion process and provides metrics to measure the effectiveness of nanotechnology compared to more traditional products. More than three thousand hours of spraying will pass before the piece shows signs of wear, thanks to the combination of the zinc coating and the nanotechnological sealant.

This result provides unmatched resistance and is superior to any other solution based on zinc electroplating. Aluísio highlights that, “at a weather station on the Santa Catarina coast, where Ciser practically tests the resistance of its goods, portions exposed to maritime air for more than seven years still show no signs of rust, that is, red oxidation.” Ciser’s current offerings include the Nanotec Alumnio and Nanotec 3000 product lines, which can be customized to offer more or less resistance, respectively, to meet individual customer demands.

NanoGeo

We present NanoGeo, a coating made of flakes of zinc, aluminum, and extremely hard nanoparticles, or organometallics as they are known in Brazil. Patent applications for this technology are already underway, which is being exclusively offered by Ciser. The type of thread is irrelevant; it works just as well on hexagonal fasteners or slotted ones. As the hardness of the surface film is increased, the product is five times more resistant to corrosion in “salt spray” tests than the standard product. Together with a sealant, we are able to extend the salt mist test to over 4,000 hours, four times more than the average product on the market and about 300 times more than the average product without any type of protection.

Sustainability

By avoiding the use of Chromium VI and other heavy metals, both Nanotec and NanoGeo are considered environmentally friendly technologies. They do not contribute negatively to the environment and do not produce harmful byproducts. At a time when everyone is seeking alternatives to limit the consequences of production chains on the environment, these characteristics align with the main industrial trends and the ESG principles of Ciser.

Increasingly, the market is dominated by Ciser’s nanotechnology products, thanks to their resilience, durability, sustainability, and low cost. We are confident that our sealants are what truly differentiates Ciser from the competition. Since its introduction, the technology has been widely used and resulted in rewarding financial outcomes, he says.

For additional information, visit Ciser’s website here.