StarBar

Danterr's GFRP composite reinforcing bar — up to 2× stronger than steel, ¼ the weight, and completely non-corrosive. ASTM-compliant, engineered for demanding Australian conditions.

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Service overview

About

Starbars™ is Danterr's high-performance Glass Fibre Reinforced Polymer (GFRP) reinforcing bar, engineered to replace conventional steel reinforcement in concrete construction. Manufactured with continuous high-strength glass fibres encapsulated in a resilient polymer matrix, Starbars™ delivers up to twice the tensile capacity of steel at approximately one-quarter of the weight.

Available in standard diameters of 10mm, 12mm, and 16mm, supplied in 6000mm lengths, and manufactured in accordance with ASTM D7957/D7957M, the US standard for GFRP reinforcement in concrete. That's the certification engineers, consultants, and contractors need to specify Starbars™ with confidence on Australian projects.

The material advantages are significant. Because GFRP does not rust and does not conduct electricity, Starbars™ is particularly well-suited to structures exposed to coastal, marine, or chemically aggressive conditions as well as rail, tram, MRI, and other electromagnetic-sensitive applications where steel reinforcement causes complications. Distributed through Danterr's national network across Sydney, Melbourne, Brisbane, Adelaide, Hobart, Darwin, and Perth, Starbars™ is backed by delivery reliability and local support.

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Up to 2× stronger than steel

Higher tensile capacity than equivalent-diameter steel rebar, delivering superior structural performance across concrete applications.

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Up to 2× stronger than steel

Higher tensile capacity than equivalent-diameter steel rebar, delivering superior structural performance across concrete applications.

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¼ the weight of steel

Single-person handling on site. Lower freight cost, reduced labour, and improved safety through reduced manual handling strain.

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¼ the weight of steel

Single-person handling on site. Lower freight cost, reduced labour, and improved safety through reduced manual handling strain.

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Non-corrosive & non-conductive

Cannot rust, cannot conduct electricity. Suited to coastal, marine, chemically aggressive, and electromagnetic-sensitive applications.

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Non-corrosive & non-conductive

Cannot rust, cannot conduct electricity. Suited to coastal, marine, chemically aggressive, and electromagnetic-sensitive applications.

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ASTM D7957/D7957M compliant

Manufactured to US Standard for GFRP concrete reinforcement, aligning with internationally recognised design and construction standards.

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ASTM D7957/D7957M compliant

Manufactured to US Standard for GFRP concrete reinforcement, aligning with internationally recognised design and construction standards.

Capabilities & Features

Product assembly

Category

Details

Product range

  • Standard length: 5.8m

  • Grades: 45 GPa and 47 GPa

  • DuraBar Carpet (pre-tied bar mats for slabs)

  • Custom configurations available

  • Straight bars: 6mm, 8mm, 10mm, 13mm, 16mm

Typical applications


  • Chemically aggressive environments (chemical plants, wastewater)

  • Rail and tram infrastructure (electromagnetic sensitivity)

  • MRI facilities and hospital construction

  • Residential driveways, pool decks, tennis courts

  • Retaining walls and landscape structures

  • Bridge and infrastructure repair

  • Coastal and marine structures

Key advantages


  • Up to ¼ the weight of steel bars

  • Non-corrosive — no rust failures over service life

  • Electrically non-conductive

  • ASTM D7957/D7957M compliant

  • Reduced labour and freight costs

  • Improved on-site safety (lighter manual handling)

  • Up to 2× the tensile strength of steel

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Simple & Transparent

Our proven workflow

Product brochure
Product brochure
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Product brochure
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Step 1

Design and planning

Step 2

Precision machining

Step 3

Final Inspection & dispatch

Common questions

Frequently asked questions

How does Starbars compare with conventional steel reinforcement?

Starbars delivers up to twice the tensile capacity of steel reinforcement at approximately one-quarter the weight. Single-person handling replaces two-person lifts, freight costs drop significantly, and the completely non-corrosive material eliminates the rust failures that reduce the service life of steel-reinforced concrete. Engineering design must account for GFRP's different stiffness properties, our team provides that design support.

Is Starbars approved for Australian construction projects?

What diameters and lengths are available?

Why is electrical non-conductivity useful?

Can Starbars be cut on site?

How does Starbars compare with conventional steel reinforcement?

Starbars delivers up to twice the tensile capacity of steel reinforcement at approximately one-quarter the weight. Single-person handling replaces two-person lifts, freight costs drop significantly, and the completely non-corrosive material eliminates the rust failures that reduce the service life of steel-reinforced concrete. Engineering design must account for GFRP's different stiffness properties, our team provides that design support.

Is Starbars approved for Australian construction projects?

What diameters and lengths are available?

Why is electrical non-conductivity useful?

Can Starbars be cut on site?

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