Savannah, GA,
07
June
2012
|
06:56 PM
America/New_York

Every Detail

Summary


An ongoing challenge, corrosion on trailers is being addressed at Great Dane in many ways, including the smallest of details. In particular, along with larger components, the fight against corrosion is being waged on fasteners, with substantial benefit.

An ongoing challenge, corrosion on trailers is being addressed at Great Dane in many ways, including the smallest of details. In particular, along with larger components, the fight against corrosion is being waged on fasteners, with substantial benefit.

Among the latest weapons in Great Dane's corrosion fighting arsenal are organic coatings, which are proving highly successful as barriers against corrosion in several carefully selected and extensively tested applications.

Organic coatings consist of a layered solution that typically employs zinc and polymer basecoats as well as aluminum and polymer topcoats. Combined, the characteristics of these materials make both an excellent barrier to corrosion and provide a sacrificial element, effectively multiplying the protection of conventional treatments, such as zinc coating or galvanizing.

Used on fasteners, such as nuts, bolts, screws and other types of hardware in some applications on Great Dane trailers, organic coatings are undergoing continuing and extensive evaluation. Included are common salt spray resistance along with more severe cyclical tests involving dry, mist and immersion cycles of typical road chemicals. With impressive results, evaluations have also covered the organic coating's resistance to aluminum brighteners and other cleaning chemicals that if used improperly would strip conventional electroplating.

Great Dane is also continuing to evaluate the mechanical durability of organic coatings. Historically, the weak point in organic coatings is their relatively brittle undercoat, meaning they could lack chip resistance, especially during installation. These evaluations have included repeated installation and removal cycles, industry standard drop tests, and even the use of a rock tumbler designed for polishing stones. Even after multiple abuses to the fasteners, those with organic coatings continued on thru corrosion testing to again yield impressive results.

Organic coatings complement Great Dane's wide-ranging approach to corrosion resistance. In use are corrosion-resistant undercoating compounds like Valspar's Val-Flex and Dry-Flex for steel components of the underbody of dry freight and reefer trailers. Also standard is Valspar's R-Cure, a two-step epoxy primer and urethane topcoat for dry freight rear frames and platform trailers.

CorroGuard with Technology by GatorHyde is the latest exclusive Great Dane product designed to fight corrosion. This polyurea elastomeric coating was developed specifically for trailer underbody protection from rock and stone impingement and chemical resistance to current de-icing chemicals. This impact-resistant barrier is designed to withstand de-icing chemicals, as well as road debris, climate fluctuations, and ice and snow. Airtight and water tight, CorroGuard will not peel, crack, warp, flake or split under even the harshest of conditions.

Today, in some ways, that challenge is even greater. With new road deicing agents comes an increase in corrosion on vehicles. Winter road traction and deicing materials also create a "sandblast" effect on the understructure of trailers, potentially compromising traditional protective coatings. For customers, this adds up in higher costs for repair and replacement to structural members, suspensions, landing gear and other components impacted by corrosion.

To further the goal of providing continually better corrosion resistance, Great Dane is evaluating and adopting new solutions like organic fastener coatings.

Corrosion is an ever-present enemy to trailers. At Great Dane, proactive research and development— even for the smallest of details– is addressing this challenge very effectively.