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Structural Rebar


MST-BAR® is a Glass Fiber Reinforced Polymer (GFRP) rebar. It is the only GFRP rebar that is an integrally ribbed maximum strength rebar. MST-BAR® is the only GFRP rebar that bonds to concrete better than steel, potentially leading to rust and spalling, MST-BAR offers a durable alternative.


MST-BAR® is 4x lighter than steel rebar, 3x stronger, does not conduct heat, cold, or electricity, substantially reduces workplace injuries, takes half the time to install with half the personnel, requires no maintenance or repairs, and lasts longer than the concrete it reinforces. Governments are specifying it, and the world is beginning to realize that MST-BAR is a valuable solution.

MST Rebar Inc.’s specially engineered and designed integral rib that mechanically locks MST-BAR® into the concrete. Unlike other rebars (whether steel or GFRP), the only way to pull it out of the concrete is to break the concrete itself.

There are many benefits to the integral rib. Not only are there fewer cracks with smaller crack widths, but you can also avoid many of the traditional bent bar applications by using straight lengths of MST-BAR®. These applications include but are not limited to joining slabs, joining walls to floors, corners, anchoring and reducing embedment lengths.


MST-BAR Grade III Specifications

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MST-BAR Bent bar

MST Rebar Inc. bent rebar is manufactured with the highest grade of modified Vinyl-ester.  Our glass fiber bent rebar has above 75% retention of strength at the bend portion (compared to the CSA S807 requirement of 45%) in comparison to the straight portion, with an extremely low coefficient of variation(<5%), this means the micro-fibers inside the bend are so well aligned- that they carry the load at the bend as intended.   



MST Rebar Inc. bent rebar is free of buckling, voids, easy to handle and prefabricates into the perfect bent shape that making it indistinguishable from steel.

MST-BAR® can bend into any shape, including 2D(along X,Y) and 3D(along X,Y,Z) and spiral(round or square). The minimum bend radius is 2.5 times the diameter of the bar. 

Bent Rebar Standard Available Nominal Bar Size

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