The Mar-flex Control-Joint System is used to limit shrinkage cracking to pre-determined, non-critical areas of poured concrete walls.
When placed 10 to 15 apart in pre-planned locations (such as windows and beam pockets, or in areas that are already weakened), the V shaped, reusable plastic extrusions create vertical control joints on both sides of a foundation wall, putting you in control of where the cracks will occur.
Mar-flex Control Joints are:
Economical and reusable
Easy to install -- attach to the edge of any concrete forming system
Pre-punched for easy use with different types of forms
The perfect way to isolate shrinkage cracking and control random cracks
When combined with Mar-flex Waterstop Elastomeric Sealant and Fiberglass Fabric Reinforcement, the Mar-flex Control Joint System ensures structural stability and watertightness.
Mar-flex Control Joints are vailable in 4' and 5' lengths to fit 8, 10 and 12 wall thickness, with a 2" mounting flange.
Last Updated over 10 years
