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Arnco Tech Tip No. 1

Don't let your tires put you under pressure.

Correct Pressurization

• Purpose: Stretches carcass and tension structural components of tire.
• Benefit: Ensures tire will carry load and beads will not slip. Maximizes life of tire and effects of footprint
• Correct Pressure: Provides even tread wear, cool running, no bead slip and enhanced traction.
• Over Pressurized: Causes small footprint, reduced traction and vulnerability to beaks or splits.
• Under Pressurized: Causes large footprint, bead slippage and excess sidewall deflection which cause the tire to run hotter.

Proper inflation pressures are always maintained in a tire once it has been filled with Arnco Flatproofing. This means the footprint of the tire will not change and the tire will always operate as it was designed, ensuring optimal performance and maximum tread life. It will also eliminate any friction heat caused by rim slippage. Arnco’s patented Flatproofing polymers are the only materials that will grow with the tire carcass during use, thereby providing a tire that runs cooler during operation while always maintaining correct inflation pressures.

Therefore when flatproofing a tire it is necessary to use the correct tire and corresponding tire pressure, as stated by the tire manufacturer, for the specific application. To ensure a tire is pressurized correctly there are really only two steps that need to be taken. Easier said than done though.

Determine proper inflation pressure

The tire salesperson needs to communicate with the flatproofing processor the correct inflation pressure. This is where it can get complicated. A 14.00 x 24 tire has 59 different recommended pressures depending on the type of tire, the application, its load and speed. Use the tire manufacturer’s specifications as well as a tire and rim handbook as a reference.

The tires manufacturer provides data on their tires indicating the load carrying capacities, the correct inflation pressure for specific applications, the rim width and the overall diameters for both new and used tires. The data also includes tread design, ply rating or load range, and the compound for their products.

Tire manufacturers have engineered, tested and designed their tires to give their customers the best product for tire performance, including longer tread life, minimal wear on equipment and operator, and reduced fuel consumption. They have also determined the best inflation pressures for their tires.

Obtain proper inflation pressure

To obtain proper inflation pressures the pump and the flatproofing technician must be familiar with the pressurization process. Pressurizing a tire with Arnco polymers is not the same as pressurizing a tire with air. When pressurizing a tire with air, doubling the amount of air will double the pressure. However, it may take only one stroke of the FlushLess II pump to produce 100 psi of liquid pressure in small tires. The pumping system can create pressures higher than the burst pressure of many tires and wheel assemblies. Extreme caution should be used when inflating tires with liquid or air. A safety cage or other restraining device should always be used and the pump should never be left unattended while operating.

So to ensure optimal performance for flatproofed tires, remember to pressurize the tire according to the tire manufacturers specifications for the application, load and speed. Technical questions regarding pressurization techniques or any other questions please contact Customer Service at 800-821-4147 or mail@arnconet.com.

Article provided by Sam Capps