Let’s Dissect the Capillary Mat Aquamat capillary mats are the highest quality mats we offer. They are completely composed, and ready to integrate with Blumat Watering Systems. So what are they? These mats have five components in four distinct layers. The black, perforated material prevents algae and other unwanted biologicals from penetrating into the mat. Contrary to popular belief, this material WILL stop roots from penetrating the mat! This makes the mats incredibly easy to clean, and moving plants is never stressful – for you, or for the plant. The evaporation block layer prevents salt or other fertilizer build up in the capillary material itself. It also prevents excess evaporation from occurring, and helps to prevent excessively high humidity. This reduces the burden on dehumidifiers, air conditioning appliances, and other temperature/humidity control infrastructure. The next layer does the actual “work” in these systems. This material is extremely absorbent of water and nutrient solution. It is so absorbent that it evenly emits the moisture throughout the capillary material, ensuring there are no overly wet/dry pockets. And last but not least - the containment barrier is a completely waterproof material that prevents all run-off from the cap mat, and prevents unwanted biologicals from growing into/through the bottom of the mat.