At PreferPack, we offer pop-up spools in two grades of corrugated paperboard. Both grades are assembled using hot-melt glue which is impervious to moisture compared to the water-based glue of other reels. We’ve had several phone calls about pop-up spools made using lightweight corrugated stock and water-based glue failing under high humidity conditions. Also, we Read more about PreferPack Delivers Better Quality Pop-Up Spools[…]