Abstract: A turret roll forming machine includes at least one turret assembly carrying multiple rows of tooling (e.g., forming rollers), rotatable about an axis to selectively align rows of tooling with an input or output. A transmission is accessible from an exterior of the turret assembly without disassembling of the turret assembly to perform a changeover of roll tooling and/or maintenance on gears, bearings, or shafts of the transmission. Thus, a chain drive may be employed, advantageously accommodating differing rotational speeds for top and bottom forming rollers of each pair of forming rollers, e.g. to reduce roll scuffing. Pairs of forming rollers may be provided as cassettes, which are removably coupleable to the turret assembly allowing quick and easy reconfiguration and/or servicing, minimizing negative effects of changeover. The turret assembly may be a unitary structure (e.g., a weldment) improving rigidity and increasing accuracy of roll forming operations.

Abstract: An expanded material suitable for industrial application may have a nominal tap density from 0.18 grams/cc to 1.00 grams/cc and a wall thickness greater than 1.00 microns. The expanded material may take the form of an expanded silicate, for instance perlite, obsidian, pitchstone or vermiculite. A composition may include the expanded material in a dispersion, for example a resin dispersion, for instance a latex acrylic. Such may be particularly suitable as a partial or complete substitute for another aggregate used in the composition, such as sand. The composition may be suitable in structural applications, for example as an EIFS coat. The expanded material may, or may not, include a partial or complete hydrophobic coating.