By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy for more information.
CAPILLARY EDGEvantage

Design Bunker Edges, Without Limits

The new Capillary Edgevantage is a revolutionising Innovation in bunker edge construction and finally allows for edges with natural or artificial edge, and endless design options.

How it works

Capillary Edgevantage is mounted vertically and locked into a stable foundation at the bunker shelf, in the liner.

This construction supports turf, sod, or soil from behind — not just at the surface — creating a stronger and more durable bunker edge.

Stackable geometry

Units can be stacked to build higher edges without loss of stability.

Soft but stable face

Thicker profile resists collapse without creating a hard rebound surface.

Vertical installation

Edge is mounted upright and locked into the Capillary Material via barbed spears.

Integrated moisture cups

Integrated cups hold water and keep sod and turf hydrated at the edge.

Structural foundation

Spears are cast into the shelf or edge structures below, preventing movement.

Flexible by design, built to last

Choose appearance to match course design

Native edge

Low edge

Traditional revetted

Stackable to any height,  or as single layered edge

Single layer

Works with any kind of sod or artificial turf

Natural turf

Native edge

Synthetic edge

Testimonials

+1500 satisfied customers worldwide

We are proud to have constructed some of the world's top 100 golf courses, from Ryder Cup to PGA venues. Here are what some of them say about us and our bunker liner:

Hoover Country Club

LJ Robinson

The Wash Box is a huge deal for us. In the past, after a flood, we would skim our bunkers with flat shovels, but there was always some muck left over. With the Wash Box, we can skim, then connect a hose to the irrigation system and blast out the rest of the contamination. It will make a HUGE difference for us!

Castelconturbia GC

Giovanni Malcotti

When our contractor explained the benefits of the Wash Box to us, it was an easy decision to add it, one we took in an instant. It was a complete no brainer and we are happy with how it has helped us restore the sand colour without removing or adding any new sand!

Delsjö GK

Kevin Collins

Keeping our sands clean with the soils we have always has been a huge problem. Regardless of how good your construction is, you will always get contaminations in the sand here: clippings, algae, clay and silt run-offs and the like. This is the first solution we have ever seen work where we do not have to replace the sand. I'm stunned by the results and also all the money we save on sand!

The Breakers Palm Beach

Mark Reid

I am a big fan of the Wash Box. To have the ability to remove fines and algae, and bring sand back to its original pure-white state is amazing. I’m never worried about bunker consistency now!

Croasdaile Country Club

Golf Course Updates:

The rain total for yesterday was 2 inches. It was a great test for the renovated bunkers and they handled it flawlessly!

Below is an old bunker verses one that was rebuilt.

Whitecraigs Golf Club

Whitecraigs Golf Club

Not a brilliant morning weather wise, but delighted at how the course has held up to an inch of rain since we left yesterday.  Greens drainage and capillary concrete bunkers are performing well.

Headland Golf Club

Ben Tilley

When 38mm “floggs down” overnight & 55mm over 3 days & then you come in to find your decision making, choices of product and planning have been vindicated 😎😎😎

Ayla Golf Club

Atilla Demisroy

Keeping the white silica bunker sand and the orange/brown desert sand separate is essential if bunker performance is to be maintained, and this requires a quality liner. We need separation to keep the integrity of our bunkers. CapillaryFlow was the only option to fix this.

Oakwing Golf Club

Kyle Swart

Before we started, around fifty per cent of our bunkers simply didn’t drain. In the first three months after we renovated, we had 22 inches of rain–we went from an incredibly dry summer to an incredibly wet winter. There is not a bunker out there that has held water or washed out, or retained any silt. They have been the best addition to this golf course.

We are going to save $50-70,000 a year just on labour from the new bunkers, and there will be another $12-15,000 from not having to replace sand. For us, that is a big, big difference.

Clearwater Bay Golf

Peter John Downie

After 250mm of rain, no washout, no nothing. The Bunkers we didn't redo, a complete mess. Washed out, right down to the sand mat, completely depressing for the staff. After this, we will redo all our bunkers with Capillary!

Newnan Country Club

Andy Scott

We’ve had three big rainstorms – three inches overnight – since we finished the installation, and we have come in the following morning and found little or no washouts in our new bunkers. Member reaction has been great. I’m getting compliments every single day about how they look and play. It’s probably too early to say this is the best decision of my life, but I’m pretty close to it.

The Club at Gettysvue

Jeff Dudych

During my travels I’ve seen all the liners and from talking to my colleagues, it was clear that the Capillary Bunkers stood up the best.

Wakefield Plantation Country Club

Todd Lawrence

I like the fact that the concrete is a homogenous two inch layer. Other products seemed to depend much more on the contractor to get the consistency and depth of the product right. With Capillary Bunkers, I knew that as long as it came out of the truck properly mixed, it would give me that solid two inch layer.

Sarabay Country Club

Carlyle Merring

We had ten inches of rain over the course of thirty days in June, and seven of those inches came down in two days,” says golf course superintendent Carlyle Merring. “The bunkers stood up to it really well. We don’t have a problem with them washing out. The integrity of the product is holding strong – not failing in any sort of way, and the bunkers are functioning really well. Generally we can get our bunkers back in play in one morning after a big rain event.

Kinderlou Forest Golf Club

Heath Allen

We want to do this one time and not have to worry about going back in to replace anything. And the Capillary system is very easy to install – there are very few restrictions about suitable weather, or time of day, and so on.

Cuscowilla Country Club

Jarrod Clark

After 20 years of weathering and maintenance our bunkers were in need of renovation. We have a natural style of bunkering and wanted to keep that look intact while installing new sand and drainage. Using Capillary Concrete on our steep faces allowed us to stabilize and drain the bunkers while keeping the design and look intact. We have experienced less washouts and better playability since the Capillary Concrete installation. Our members have been very happy with the consistency of the new bunkers that are now playable sooner after heavy rainfall

Flying Horse Club

Phil Smith

I have had great experiences with Capillary Concrete, so it was an easy decision for this project. I have found the Capillary Concrete to deliver very good results in terms of sand quality, and the easy of installation just closes the deal as far as i’m concerned. I really can’t say enough about it.

Gamle Fredrikstad Golfklubb

Agne Strom

I dug up the sand today in one of our bunkers. I am turning it into a chipping area by green #7. After 3 trouble-free seasons and 2 winters I can testify of zero damage to my Capillary Concrete. I strongly recommend this product! Never a wash-out. I spend about 10 hours per week on my 45 bunkers and that's it.

University of Texas Golf Club

Tyler Andersen

As a staff, we needed to find a way to retain moisture in the faces of the bunkers so golf shots would hit and release to the bottoms of the bunker. Capillary Bunkers with its two-way moisture control was the only liner who could provide this. We couldn't be happier for our bunkers!

The Preserve Golf Club

Steven Miles

All of our bunkers were completely redone with Capillary Concrete back in 2014. We got 100 inches of rain the last 2 years and for the last 4 to 5 years we have not had to replace any sand. We have less labor fixing washouts… we have to rake our bunkers fewer times… so it saves us a substantial amount of money for labor.

We have not had to repair our bunkers at all, and, incredibly, the original sand is still in them. Since 2014, I have bought one truckload of sand, and that was for the bunker in our chipping green – which gets blasted out by players. Our bunkers have flashed sand faces, but our minimal washout issues only occur where water actually flows into the bunkers. When we get a big rain – and eight to ten inches of rain is not uncommon – we have to wait for the drainage infrastructure underneath the bunkers to catch up with the bunkers’ ability to move water. But it always does, and then the crew can prepare the bunkers for play again.

Avondale Golf Club

David Warwick

We have recently made the huge decision to renovate all the bunkers at Avondale Golf Club, utilizing Capillary Concrete™ as the primary bunker liner and the patent pending drip line irrigation technique on the steeper faces. We are extremely impressed with the effectiveness of the product.

Palmetto Golf Club

Brooks Blackburn

It’s been a game changer for us.

Le Golf National, Paris, France

Alejando Reyes

We have selected Capillary Bunkers with special Light Weight Aggregates based on the outstanding performance and strength of the material. After several tests and on site evaluations, it is the best adapted product to our renovation project in order to produce a world class golf venue

Capillary Edge is part of our complete bunker protection system

All tied together by our proprietary Capillary Material 

Capillary Edgevantage -
Maintaining design integrity

The Capillary Edge guarantees that the bunker’s shape will remain true to its original design throughout its lifespan. This stability reduces the crew’s need for edge trimming and negates the necessity for remodeling or reshaping bunker edges every decade.

Capillary Bunker Liner - Mastering drainage and moisture retention

Thanks to its proprietary Capillary Material, the Capillary Bunker Liner excels at swiftly draining excess water while simultaneously retaining the right amount of moisture. This ensures impeccable playing conditions in any weather and across all terrains, while also preventing the washouts and maintenance headaches typically associated with bunker upkeep.

Read More

Capillary Wash Box -
Restoring sand to its optimal state

The Capillary Wash Box is an effective solution for washing algae, debris, silt, clay, and organic pollutants from bunker sand. By doing so, it preserves the sand’s percolation rate, color, and desired playing properties, while it is also eliminating the need for frequent sand replacement.

Read More

Why Capillary Edge?

Capillary Edge is the strongest and most efficient method of constructing a durable, single layer bunker edge using artificial grass strips. Here is what sets it apart:

Efficient installation procedure

The system is integrated into the bunker construction process and does not require additional specialized steps or equipment, allowing installation to be carried out efficiently as part of standard bunker work.

More resource-efficient construction

By relying on structural support rather than repeated reshaping or reinforcement, the edge reduces material use and ongoing maintenance inputs over its lifespan.

Exact bunker shapes over time

The defined edge provides a clear reference for trimming and edging, which, together with structural support from behind, helps the bunker retain its intended form and dimensions over time.

Guaranteed durability

Built using CapillaryFlow’s proven materials and construction principles, the system is designed for long-term performance and backed by established product guarantees.

Long-lasting, even with natural sod

The structure supports sod and turf from behind, reducing edge collapse and deterioration and allowing natural grass edges to remain stable and intact over time.

Perfect for...

High-traffic bunker edge

High-traffic bunker edges

Are people entering your bunker from the same angle due to steep faces on the other side of the bunker? Capillary Edge lets you protect those edges in a cost-efficient way.

Single-layered edges

Looking to maintain a neat looking bunker without stacked edges? Capillary Edge is the most affordable option for having multiple bunkers on your course with a single layered edge.

Bunker edge CAPILLARYFLOW

Tree roots won't compromise the bunkers

Edges in need of protection

Capillary Edge protects the outer edge from surface level tree roots or grass growing into the bunker, or animals digging their way through your bunkers.

Frequently asked questions about our bunker edge, bunker liner and protection system

Do I have to install Capillary Bunker Liner to install the Capillary Edgevantage?

Yes. Capillary Edgevantage is designed to be integrated with the Capillary Bunker system and relies on Capillary Material or associated edge structures for proper anchoring and long-term stability.

How does edge help protect my investment in my capillary bunker liner?

Capillary Edge helps create a fully sealed bunker. It prevents debris from the soil or grass edge from entering the bunker. It ensures the bunker’s design integrity with regard to the shape and perimeter is not compromised and that it remains consistent.

Will golf balls bounce off the Capillary Edgevantage?

Capillary Edgevantage is designed with a soft but stable face. While balls may bounce, the surface is dampening and forgiving, minimizing hard rebound while maintaining edge stability and safety for players. The thicker profile simply resists collapse without creating a hard rebound surface.

Can Capillary Edgevantage be used for stacked or higher bunker edges?

Yes. The system supports both single-layer and stacked edge constructions. Units can be stacked to achieve greater height or steeper profiles while maintaining stability and design integrity.

How does Capillary Edgevantage help protect my bunker investment?

Capillary Edgevantage helps preserve bunker design integrity by providing a clearly defined and structurally supported edge. By supporting turf and edge materials from behind, it reduces edge collapse, contamination, and gradual deformation, helping the bunker retain its intended shape over time and protecting the performance of the bunker liner.

Does Capillary Edgevantage prevent soil or debris from entering the bunker?

Yes. The defined edge creates a controlled transition between the bunker and surrounding ground, reducing the risk of soil, organic material, or debris migrating into the bunker during play, weather events, or routine maintenance.

What materials can be used with Capillary Edgevantage?

Capillary Edgevantage works with natural sod, artificial turf, and other plant-based edge materials. This allows for a wide range of aesthetic expressions, from traditional sod-faced edges to more natural or contemporary designs.

Is Capillary Edgevantage suitable for different bunker shapes and styles?

Yes. The system can be adapted to various bunker geometries, including curved, irregular, and traditional forms, allowing architects to match the edge design to the overall course character.

Can CapillaryFlow assist with design or installation guidance?

Yes. CapillaryFlow provides guidance on design intent, material selection, and installation as part of the overall bunker system, ensuring the edge performs as intended over time.

Interested in how we can help you protect your bunker edges from edging and size expansion?

We have helped +1500 customers worldwide upgrade their bunkers and have vast experience of bunker construction. Contact us today to discuss how we can help you.