Columbia External 90 Applicator

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.