Capillary Bunker liner

Build beautiful and durable bunkers

Create high performing bunker and offer a consistent and year-round playing experience

With a bunker liner that can rapidly drain excessive water and also move moisture back up into the sand, the Capillary Bunker liner for golf courses ensures perfect playing conditions at all times

Why CapillaryFlow bunker liner?

A bunker drainage system that just works

CapillaryFlow’s bunker liner system removes water from bunker sand at a higher flow rate than current bunker liner drainage systems and also completely stops sand from finding its way into the bunker drainage system.

Unique bunker lining material engineered for all courses

The patented Capillary golf bunker lining material, installed by cementing the bottom of golf bunkers, has proven itself to be effective in even the harshest conditions – from drought to heavy storms, and freezing conditions to sun-drenched courses. 

An efficient ecosystem of bunker lining products

The Capillary bunker liner and its bunker lining products creates an ecosystem that enables you to create the most beautiful and long-lasting bunkers out there with durable edges and washable bunker sand. 

Bunker liner products that lead to significantly less maintenance 

The Capillary bunker lining material provides massive benefits for any course crew. This includes no migration of sand from bunker faces, no waterlogged bunker bases, no need to replace bunker sand, and less edge-trimming. 


Trusted by some of the world’s best golf courses

We are proud to have constructed some of world’s top 100 golf courses, from Ryder Cup to PGA venues

Browse all references

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,” says Scott. “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 sytem 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

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.

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,” Miles says. “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.

Mount Vintage Golf Club

Rodney Crow

Since installing Capillary Bunkers, we are seeing superior conditions, the moisture levels seem to be staying right where we need them — never too dry or too wet — and our members have absolutely raved about them. The difference between our Capillary Bunkers and the ones we haven’t renovated yet is night and day.

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

How our ecosystem of bunker liner products for golf courses work

Ensure exact original bunker shapes throughout your bunkers’ lifetime with Capillary Edge

With subsurface moisture control sand stays at perfect moisture levels, keeping bunkers looking pristine

Easy to renew bunker sand to look fresh and clean with the Capillary Wash Box.

Consistent playability with just the right sand depth in accordance with the soil moisture release curve

The Capillary Material drains with a capacity of 100” per hour, meaning no more waterlogged bunker bases

The Capillary Material is robust and prevents migration of particles into the drainage system

A bunker liner that is easy to install, and even easier to maintain

Our bunker liner and bunker liner products are designed to unload your crew of long installation processes and tedious bunker maintenance and spend time on what truly matters - creating an outstanding course.

Ozarks National

Big Cedar Lodge, Missouri

Capillary Wash box

Wash your bunker sand without removing it

Significantly increase the longevity of your bunker sand

Compared to other bunker liners, Capillary lets you wash your bunker sand. This means you don’t need to replace it, your bunker always looks beautiful - and maintenance is significantly less time-consuming and expensive.

Longer sand lifespan
No sand replacement costs
Capillary Wash BoxCapillary Wash Box effect - before and after

Improved crew morale and member satisfaction, with significantly less maintenance

Wash Box
Beautiful golf bunkers

Heating from the ground up


Build bunkers that withstand high traffic and bad weather

Our bunker liner products are specifically designed to withstand high traffic and harsh weather conditions and enable bunkers to perform consistently in any weather condition and geography

Can handle 1000 psi of pressure
Takes care of high amount of precipitation
Performance is unaffected in any climate
No freeze-thaw damage even in extreme temperatures
What characteristics does the best bunker liner have?

The best bunker liners on the market all share the following characteristics

Capillary Bunker Liners

Cementing bottom of golf bunkers

Cementing the bottom of golf bunkers with bunker lining material has proved to be an exceptionally efficient method of keeping the bunker and bunker liner in perfect shape throughout its lifetime because it prevents the migration of sand particles, and keeps bunker sand moist and on bunker faces. This simply creates the best bunker liners.

Capillary Material Bunker Liners easy installation

Exceptional bunker drainage systems

The best bunker liners drain with a high capacity and can easily handle high irrigation volumes. The Capillary Bunker lining material drains water with a capacity of 100 mm per hour.

Capillary Wash Box

Offers the possibility to wash the bunker sand

The best bunker liners for golf courses and bunker lining materials offer golf course superintendents the option of washing bunker sand instead of replacing it. The Capillary Wash Box is one such complement to the Capillary bunker liner.  

The Capillary Material has proven to be a great choice as a bunker lining material

Our proprietary Capillary Bunker Liner material for golf courses lets you cement the bottom of your golf bunker – while also improving playing experience. 

Capillary Pervious concrete installation is quick and easy

Would you like to know more or order your first bunker?

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