In the steel industry, the quality of your storage system directly impacts the quality of your final product. For high-value materials like cold-rolled steel, galvanized coils, and aluminum, surface integrity is everything. At GLT Engineering, our R&D department has spent years perfecting a special engineering formula to solve two of the most expensive problems in warehousing: Coil Slumping and Surface Marking.
The Physics of Protection: Beyond Ordinary Plastic
Most generic storage blocks are either too hard, causing pressure marks, or too soft, leading to instability. GLT’s storage shoes are manufactured using a proprietary polymer blend with a calibrated Shore D hardness. This precise balance allows the shoe to “cradle” the coil without biting into the outer sensitive layers, ensuring that even the thinnest gauge steel remains pristine.
Eliminating Coil Slumping (The Ooze Effect)
“Slumping” occurs when the massive weight of a coil—often exceeding 25 tons—causes the circular shape to deform under gravity. This creates an elliptical shape that can disrupt high-speed decoiling processes and lead to significant material scrap.
Through Finite Element Analysis (FEA), GLT Engineering has optimized the contact angles of our storage blocks. By providing a wider support base, our system neutralizes the gravitational forces that lead to slumping, maintaining the “perfect circle” required for precision manufacturing.
Preventing Pressure Marks on Sensitive Surfaces
Cold-rolled and coated steels are susceptible to “pressure marks” caused by uneven load distribution. Unlike wooden skids that have inconsistent surfaces and knots, GLT’s special formula ensures a perfectly smooth, oil-resistant contact area. This prevents localized stress points, ensuring that the first and last wraps of your coil are just as valuable as the middle.
Engineering for Longevity and Resilience
Our technical shoes are not just durable; they are chemically engineered to resist industrial oils, acids, and lubricants commonly found in steel service centers. This prevents the material from degrading over time, ensuring that the surface protection you have on day one remains consistent for over 10 years of operational life.
Conclusion: Trust the Technical Experts
Surface damage is not just an aesthetic issue; it is a financial one. By investing in GLT Engineering’s specialized storage solutions, you are protecting your inventory from the microscopic level up.
For a complete technical breakdown of our material specifications and load capacities, visit our primary resource:






