Mullion Mate®
Mullion Mate® Partition Gap Closures create a seamless transition between curtain walls, windows and partition walls. It is the only partition gap closure that can accommodate lateral movements caused by SEISMIC, THERMAL and WIND SWAY, while providing high acoustical value up-to 62 STC. All of this and our 2-Hr Fire Rating. Install it in 5 minutes or less!
High Acoustical Value
up to 62 STC
2-Hr Fire Rated
per UL-2079 and CAN/ULC-S115
Lateral Movement
up to 1-15/16″
Mullion Mate® Pro
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- Closes Gaps from 4” up to 8-1/2”
- Lateral Movement up to 1-15/16″
- U.S. Patent No. 12,024,881
Mullion Mate® Plus
(Against the Glass)
- Closes Gaps from 2” up to 13-1/2”
- Lateral Movement up to 1-15/16″
- Patent Pending
Mullion Mate® Plus
(Against the Mullion)
- Closes Gaps from 2” up to 13-1/2”
- Lateral Movement up to 1-15/16″
- Patent Pending
Mullion Mate® Snap
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- Closes Small Gaps from 1” up to 2”
- Patent Pending
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Partition Wall End Caps
Instructional Videos
Finish Options
Green By Design
- Products contribute to LEED® certification
- In-House Finishes
- Biodegradable pre-treatment and powder coating (no phosphates)
- No hazardous waste
- No VOC’s
- No Heavy Metals
- Reference our sustainability page for more information.
Product Data – Mullion Mate® Partition Gap Closures
Revit Families – Mullion Mate®
Mullion Mate® Pro Consolidated Set
Mullion Mate® Pro Fire Rated Consolidated Set
Mullion Mate® Plus Consolidated Set
Mullion Mate® Snap Consolidated Set
Mullion Mate® End Cap Details
Mullion Mate® Pro Specifications
Mullion Mate® Pro Fire Rated Specifications
Mullion Mate® Plus Specifications
Mullion Mate® Snap Specifications
Gap Closures for Fire Rated Walls
Technical Data (Seismic)
Mullion Mate® White Paper
Mullion Mate® Pro Installation Instructions
Mullion Mate® Pro Fire Rated Installation Instructions
Mullion Mate® Plus Installation Instructions
Mullion Mate® Snap Installation Instructions
Field Painting Mullion Mate®
Cleaning & Maintenance
