Surface Mount

Steel-Flex® Flexible Guideposts

THE WORLD'S TOUGHEST GUIDEPOSTS – QUICK INSTALL FOR CONCRETE

Steel-Flex® Surface Mount Guideposts set the standard for roadside delineation and safety, especially on concrete pavements. As the most durable and resilient flexible guidepost available, Steel-Flex surface mount guideposts are engineered to withstand repeated impacts, and demanding traffic conditions. The patented flexible steel design ensures each post bends on impact and returns to vertical, making it the ideal solution for concrete surfaces where fixed, reliable delineation is essential.

A steel-flex surface mounted guide post in a bike lane

Features & Benefits

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Unmatched Durability

Roll-formed from high-performance spring steel, Steel-Flex® flexible steel guideposts are protected by an advanced ArmorGalv® thermal diffusion galvanised coating, then finished with a UV-resistant, high-gloss powder coat. This triple-layer protection delivers exceptional corrosion resistance, even after repeated impacts or harsh weather exposure.

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Self-Righting Flexibility

The patented flexible steel design means Steel-Flex posts bend and return upright after impacts or wheel-overs, dramatically reducing replacement and maintenance costs.

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Fast, Safe Installation

One-piece construction allows for rapid installation directly into unsealed ground or road base using manual or mechanical drivers. Dual retention barbs ensure stability and prevent unauthorised removal.

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Long-Term Performance

Retains at least 75% of its colour and physical properties for 10+ years, even in extreme weather. Fire-resistant up to 140°C, non-flammable, and safe to handle with no sharp edges.

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Versatile & Customisable

Available in a wide range of colours and compatible with all standard delineators and marker post stickers, ensuring compliance and visibility for any project.

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Australian Standards Compliance

Fully compliant with British & European Standard EN 12899–3:2008 and Australian Standard AS 1742.2 and AS/NZ 1906.1.

STEEL-FLEX® SURFACE MOUNT GUIDE POSTS & ROAD EDGE POST PRODUCTS

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Applications for Steel-Flex® Surface Mount guidepost

Designed for concrete surfaces such as bridges, tunnels, and barriers, these posts are easy to install with a polyurethane surface mount secured with anti-vandal fixings. Steel-Flex Surface Mount retains all the flexibility and durability of the Steel-Flex range, with the added convenience of surface mount installation, ensuring clear guidance and enhanced safety for road users, in any environment.

Steel-Flex® Surface Mount Guideposts are purpose-built for:

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Concrete Roadways & Motorways

Engineered for secure installation on concrete surfaces, Steel-Flex Surface Mount guideposts are ideal for high-impact zones along major roadways and motorways. Their robust, flexible design provides consistent roadside delineation and outstanding durability, even in heavy traffic areas.

Bridges, Tunnels. Overpasses & Underpasses

Purpose-built for permanent installation on concrete structures where traditional posts are difficult to anchor, Steel-Flex Surface Mount guideposts are proven to deliver a stable, long-lasting solution for delineation on bridges, tunnels, overpasses, and underpasses.

Concrete Road Edges & Shoulders

Surface Mount guideposts are perfect for marking the edges of concrete roads and shoulders, especially in impact-prone zones. They help improve driver awareness and safety by providing highly visible, reliable delineation day and night.

Urban Infrastructure & Car Parks

Permanent infrastructure situations requiring reliability and security, in concrete installations, Steel-Flex Surface Mount will securely lock in place with anti-vandal fasteners. making them Ideal for use in urban environments, multi-level car parks, and other hard-surface locations

TECHNICAL SPECIFICATIONS

Delnorth Steel-Flex ® is a patented flexible steel delineator post. Steel-Flex may be surface mounted into concrete with secure anti vandal fasteners. Steel-Flex ® is capable of withstanding repeated impacts and wheel overs by vehicles with minimal damage to the post or vehicle. Steel-Flex ® roadside delineator posts comply with:

British & European Standard E N 12899 – 3:2008 & Australian Standard AS 1742.2 and AS/NZ 1906.1

Steel-Flex ® can retain a minimum of 75% of colour, appearance and physical properties for 10 years even when exposed to extreme weather conditions. They are fire resistant and the powder coating can withstand temperatures of up to 140°C.

Steel-Flex ® flexible steel delineator posts stand vertical when installed. Testing has shown that the post will not deflect more than 35mm when subjected to wind speeds of 45m / sec. (162 kph) on the front face (convex surface) of the post.

The load required to bend each post length of 1000mm long to an angle of 90° should not be less than 30N. It only requires 5kg pressure to bend a Steel-Flex ® post.

Steel-Flex delineator posts return to vertical automatically after repeated vehicle impacts. They have been tested to 10 impacts from a passenger type vehicle at 100 kph without compromising the integrity of the post. It has been tested to ten wheel over’s at 50kph from a fully laden 42 tonne truck without compromising the integrity of the post.

FEATURES

  • Ideal for concrete pavements
  • Durable signpost solution
  • Returns to vertical after repeated impacts
  • Will not dislodge on impact
  • High impact resistance
  • Will not fade or discolour
  • Thermal resistance -30’C to +80’C
  • Life expectancy of 15 + years
  • Fire resistant
  • Quick and easy to install
  • Low maintenance
  • High visibility
  • Significant cost savings
  • No sharp edges

DOWNLOADS

Installation

Petrol Driver Installation

Removal

Steel-Flex® Surface Mount Flexible Guideposts FAQs

Why Choose Steel-Flex® Surface Mount Flexible Guideposts?

  • Unmatched Durability: Steel-Flex® flexible steel guideposts are designed for maximum impact resistance and longevity, even after repeated vehicle impacts and wheel-overs.
  • Quick & Secure Surface Mount Installation: Specially engineered for fast, secure mounting to concrete surfaces, perfect for bridges, tunnels, barriers, and road edges.
  • High Visibility & Customisation: Available in a wide range of colours and delineation options, including reflective panels for enhanced night-time and low-light visibility.
  • Corrosion & Fire Resistance: ArmorGalv® coating and premium powder finish deliver exceptional corrosion protection and fire resistance, ensuring a long service life in Australia’s toughest environments.
  • Compliance & Safety: Fully compliant with British & European Standard EN 12899-3:2008 and Australian Standard AS 1742.2 and AS/NZ 1906.1 for roadside delineator posts.
  • Low Maintenance: Will not fade, discolour, or develop sharp edges. Designed to save time and reduce costs for councils and contractors.

Steel-Flex® Surface Mount Flexible Guideposts are designed for installation on concrete and other hard surfaces where in-ground posts are not suitable. They provide flexible, self-righting roadside delineation using a surface-mounted base.

When struck or driven over, the guidepost bends and then returns to its upright position. This helps maintain visibility and alignment after vehicle impacts.

They are commonly used on concrete roadways, bridges, tunnels, overpasses, and other hard-surface environments, as well as areas such as car parks and urban infrastructure.

The guideposts are manufactured from high-performance flexible steel and finished with corrosion protection and a UV-resistant powder coat, helping them withstand traffic impacts and harsh outdoor conditions.

Yes. Their flexible, self-righting design reduces breakage and replacement, which can lower ongoing maintenance requirements compared to rigid guideposts.