Bed Liner Coating and Its Protective Powers Frank March 28, 2024 Business Comments are off A spray-on bed liner protects your truck’s bed and tailgate from scrapes and dents that can damage the surface. It also provides added strength and a customized look. Spray-on bed liner coatings may contain MDI (methyl diisocyanate) that can be Continue Reading Bed Liner Coating and Its Protective Powers