The Columbia External 90 Applicator (CEXT90) is a tool designed to apply joint compound to external 90-degree corner bead. It delivers a consistent and even layer of mud, preparing the corner for finishing and streamlining the pre-filling stage of the drywall process. This applicator head is compatible with any brand of corner box or the Columbia Mud Tube. Uniform Compound Application This applicator head applies a uniform amount of compound directly onto outside corner bead. This process ensures the corner is properly coated before using a corner flusher or roller, which contributes to a smoother final finish. Durable Material and Design The CEXT90 is machined in Canada from a single piece of Ultra-High Molecular Weight (UHMW) polyethylene. This material is recognized for its high durability, resistance to wear, and ease of cleaning, providing a long service life. Specifications Model CEXT90 Angle External 90° Material Ultra-High Molecular Weight (UHMW) Polyethylene Compatibility Standard corner boxes, Columbia Mud Tube Features Quick Release Clip: Allows for fast and easy attachment to and removal from the corner box or mud tube. Durable Construction: Made from strong UHMW plastic for a long-lasting and easy-to-clean tool. Consistent Application: Applies an even coat of mud to outside corner bead. Made in Canada: Machined in a state-of-the-art facility.
