J&M Products LLC announced four distributors have signed on to carry Healthy Walls Products, a line of mold-proofing products designed to reduce or eliminate the growth of toxic mold on wood, cement, masonry, stucco and gypsum. The new distributors carrying the product include: Seal-Tek, of Bethany Beach, Del.; EPRO in Wichita, Kan.; Metro Sealant & Waterproofing, of Newington, Va.; and NV Waterproofing Inc., of Northern Virginia.