• Cobblestone village square with trees, stone fountain, and brick houses in sunlight
  • Bucket of A-COAT PRO sealant on a wet surface with a curved path in the background
  • Low-angle view of a cobblestone street with brick buildings and a parked car
  • Gray brick pavement laid in a herringbone pattern

A-Joint® Pro is the versatile 2-component jointing mortar for natural stone and concrete paving, loadable up to 12 tonnes. Effortlessly fills both very narrow and extra-wide joints.

  • Close-up of grey cobblestone pavement with light grout lines

    For narrow and extra-wide joints

    Thanks to its high flowability and self-compacting properties, A-Joint® Pro powered by ECCO can be applied effortlessly in joints from 3 mm wide. The product also completely fills wider and irregular joints, without the need for additional compaction. This makes it equally suitable for tightly laid clay paver paving as for rubble stone and polygonal work. 

  • Low-angle view of a cobblestone street with a truck and brick buildings

    Load capacity up to 12 tons

    A-Joint® Pro powered by ECCO is designed for traffic loads up to 12 tonnes, making it suitable for use on roads, public squares, footpaths, and in swimming pool and pond environments. The jointing mortar minimises maintenance work and the risk of slippery surfaces. 

  • Wide cobblestone village square with brick buildings, leafy trees, and outdoor seating

    Permeable and low-maintenance

    The water-permeable formula quickly channels rainwater through the joint, preventing water build-up and slippery surfaces. A-Joint® Pro powered by ECCO is resistant to frost and de-icing salt and inhibits weed growth, so the joint remains stable and aesthetically neat for years with minimal intervention. 

The benefits of A-Joint® Pro powered by ECCO

A versatile 2-component jointing mortar that is water-permeable, weed-resistant and frost-resistant, and suitable for both narrow and very wide joints. 

  • Water-permeable and weed-resistant
  • Resistant to frost and de-icing salt
  • Ideal for narrow and very wide joints thanks to its high fluidity and self-compacting properties
  • Suitable for heavy traffic loads (up to 12 tonnes)
  • Suitable for natural stone and concrete paving surfaces
  • Packaging made from recycled plastic (PCR – Post-Consumer Recycled)

Available in 3 colours

  • Close-up van ruwe beige steen- of betonnen textuur met kleine spikkels

    Neutral

  • Grijs gespikkeld granieten oppervlak, close-up.

    Stone grey

  • Donkere, korrelige textuur met grijze spikkels, als asfalt in close-up.

    Basalt

Winding cobblestone path through green grass
Calculator

A-Joint® product calculator

Calculate how much A-Joint® Pro powered by ECCO you need

Do you want to use A-Joint® Pro powered by ECCO in your project, but don’t want to be left with excess stock or have to order more? Calculate exactly how much you need in advance with this handy product calculator.

Calculate your quantity
Applications

What do I use A-Joint® Pro powered by ECCO for?

A-Joint® Pro powered by ECCO is the 2-component jointing mortar for heavily loaded paving (up to 12 tons). According to the product page, the applications are:

  • Driveways
  • Clay paver paving (tightly laid)
  • Cobbles and rubble stone / polygonal work (wide, irregular joints)
  • Roads and public squares
  • Footpaths
  • Swimming pool and pond surroundings
  • Natural stone and concrete pavements in general
  • A-Joint Pro
  • Cobblestone village square with trees, stone fountain, and brick houses in sunlight
  • Tree trunk beside granite curb on cobblestone pavement in sunlight
  • Close-up of grey cobblestone pavement with light grout lines
  • Black AJJoint Pro 25kg construction bucket on a paved surface
  • Stone garden path curving past lavender and green shrubs

Technical specifications of A-Joint® Pro powered by ECCO

Each product is tested for water permeability, compressive strength and durability before it is released onto the market. The values in the table below serve as a reference; actual performance may vary depending on the substrate and application. 

Download the technical data sheet
Property Value
System 2-component jointing mortar (epoxy resin mortar)
Add width From 3 mm
Insertion depth From 25 mm
Tax Heavy road tax up to 12 tons
Processing temperature > 0°C and 30°C
Processing time at 20°C Approx. 20–30 minutes
Load capacity at 20°C Walkable after 24 hours, driveable after 3 days
Delivery method PCR bucket of 25 kg
Shelf life 12 months in original packaging; store in a dry, frost-free place
Compressive strength 27.4 N/mm² (laboratory value) · 21.2 N/mm² (practical value)
Flexural strength 13.1 N/mm² (laboratory value) · 8.1 N/mm² (practical value)
Static modulus of elasticity 8000 N/mm²
Density of hardened mortar 1.68 kg/dm³
Water permeability 7.5 × 10⁻⁴ m/s (at 10% void volume, approx. 2.3 l/min/m²)

Frequently asked questions

A-Joint product line

The A-Joint® range

For private terraces, pedestrian zones and public roads: the A-Joint® range offers a stable, water-permeable joint for every application.

  • Empty parking spaces with gray brick paving and white lines

    A-Joint® Polysand Pro powered by ECCO

    Dry sweep-in jointing sand for very narrow joints from 1 mm.
  • Light beige patio tiles with a border of greenery and purple shrubs in the garden

    A-Joint® Ready Flex powered by ECCO

    Ready-to-use tile adhesive mortar for ceramic tiles and large formats, permanently flexible.

  • A-Joint® Ready powered by ECCO

    Ready-to-use jointing mortar for patios, garden paths and driveways around the home.