Bonded Logic. UltraTouch Natural Cotton Fiber batt insulation offers both thermal performance and sound absorption, the maker says. Comprising 85% postindustrial recycled natural fibers, UltraTouch is a Class-A building product and meets the highest ASTM standards for fire and smoke ratings, fungi resistance, and corrosiveness. Containing no formaldehyde or fiberglass, UltraTouch Natural Cotton Fiber batts are available in 31/2-, 51/2-, and 81/2-inch thicknesses with associated R-values of 13 to 30. 480.812.9114. www.bondedlogic.com.