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GoBoard Corner (2-Pack)
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At a Glance
Quick Decision Guide
Pack Quantity
2 Corners
Corner Type
Pre-Formed 90° Inside & Outside Corners
Material
Polypropylene Fabric with Waterproof Membrane
Thin-Set Compatibility
Modified & Unmodified Mortars
Application
Showers, Steam Rooms & Wet Areas
Installation
Eliminates Cutting & Folding Membrane
Compliance
ANSI A118.10, ASTM E96 & ASTM C627 Extra Heavy
Dimensions
3.2" × 5.5" × 2.4"
Why Choose This Product
Key Benefits
Pre-Formed Design
Eliminates folding and cutting waterproofing membrane
Continuous Waterproofing
Seals change-of-plane transitions
Thin-Set Compatible
Installs with modified or unmodified mortars
Inside & Outside Corners
Seals both 90° corner types
Wet-Area Ready
Designed for showers, steam rooms and wet areas
Code Compliant
Meets ANSI A118.10 waterproofing requirements
Product Information
Product Details
Specifications
Brand
GoBoard®
Part Number
70008441
UPC
031979220601
Product Type
Waterproofing Corner
Pack Quantity
2 Corners
Corner Type
Pre-Formed Inside & Outside 90° Corners
Material
Polypropylene Non-Woven Fabric with Integrated Waterproof Membrane
Dimensions
3.2" × 5.5" × 2.4"
Thickness
0.024" (0.6 mm)
Thin-Set Compatibility
Modified & Unmodified Thin-Set Mortars
Waterproofing System Compatibility
GoBoard® Waterproofing Systems
Installation Method
Thin-Set Mortar
Applications
Showers, Steam Rooms & Wet-Area Tile Installations
Feature
Eliminates Cutting & Folding Waterproofing Membrane
Function
Seals Change-of-Plane Transitions
ANSI Compliance
ANSI A118.10
ASTM Compliance
ASTM E96, ASTM C627 Extra Heavy
About This Product
Pre-Formed Waterproofing Corners for Tile Installations
The GoBoard® Corner is a pre-formed waterproofing accessory designed to seal 90° inside and outside corner transitions in showers, steam rooms, and other wet-area tile installations. Its integrated waterproof membrane helps maintain a continuous waterproof barrier at change-of-plane areas without requiring field fabrication.
Fast Installation with Thin-Set Mortar
The pre-formed design eliminates the need to cut and fold waterproofing membrane, helping speed installation while creating consistent corner seals. The corners install using either modified or unmodified thin-set mortar and integrate with GoBoard® waterproofing systems.
Durable Waterproof Construction
Constructed from polypropylene non-woven fabric with an integrated waterproof membrane, the GoBoard® Corner is suitable for showers, steam rooms, and other wet environments. Each package includes two pre-formed waterproofing corners and meets ANSI A118.10 waterproofing requirements along with ASTM E96 and ASTM C627 Extra Heavy performance standards.
Common Questions
Frequently Asked Questions
What is the GoBoard Corner used for?
It is used to waterproof 90° inside and outside corner transitions in showers, steam rooms, and other wet-area tile installations.
How many corners are included in each package?
Each package includes two pre-formed waterproofing corners.
Can the GoBoard Corner be installed with modified thin-set mortar?
Yes. It is compatible with both modified and unmodified thin-set mortars.
Does the GoBoard Corner replace folded waterproofing membrane?
Yes. Its pre-formed construction eliminates the need to cut and fold membrane at 90° corner transitions.
Can the GoBoard Corner be used in steam rooms?
Yes. It is designed for showers, steam rooms, and other wet-area waterproofing applications.
What standards does the GoBoard Corner meet?
It complies with ANSI A118.10 and meets ASTM E96 and ASTM C627 Extra Heavy performance standards.