Polyurea spray coating is made from polyurea, a synthetic silicate mineral that has been in use since the 1970’s for a variety of applications. Most polyurea products are water-based, so they can be used in a variety of industrial applications including building tanks and pipes, tires, roofing materials, sealants and seal coats, boat-building components, and industrial equipment. Polyurea can withstand exposure to many chemicals as well as sunlight and is non-corrosive. Polyurea has some of the lowest density of all common materials and is an extremely dense foams within its solid sheet state. The polyurea coating comes in many forms ranging from foams, sheets, flakes, clays, and even plastic and is used in a variety of industries and in multiple applications.
Durability. Polyurea is quite an expensive material with a very high level of thermal strength, which makes it ideal for tough work areas such as truck bed beds where long-term exposure to heat and moisture is a challenge. It’s also chemical and water resistant. High temperature tolerance also makes polyurea coatings suitable for outdoor applications.
Low density. It’s not really possible to manufacture polyurea coatings at a low density, because the high temperatures involved make expansion and contraction necessary. This means polyurea coating materials have to be prepared at high temperatures and the mixing process is highly controlled, which reduces the denseness. To reduce surface preparation time, most manufacturers utilize hydrodynamic processes with extremely high temperatures.
Impact resistance. Since it’s hard and chemically inert, polyurea coating materials don’t give off any fumes or chemicals during the coating process. They also offer exceptional impact resistance to hot or cold substances, including acids, alkalis, oil and gasoline. It’s especially effective for concrete toppings and other types of exterior applications.
Resistance to heat. Unlike other polyurea coatings, polyurea has excellent heat resistance abilities. And that’s why they’re frequently used on structures with high heat content. Even concrete that doesn’t experience any weathering can still use polyurea coatings due to its water resistance and anti-corrosion properties. They are also utilized for areas where temperature variations are a problem – specifically on structures that may be exposed to humidity in the surrounding air – since they can withstand humidity in excess.
How do you apply them? How do you maintain them? Although polyurea spray coating materials are hardy, they can be compromised and damaged by moisture or even acid rain if the coating is not properly maintained. Some common maintenance practices include wiping the material down with a moist cloth or rag, every time it becomes damp; applying lubricants like grease and oil to stop sloughing, and making sure there are no blocked pores in the surface. But the key to long-lasting polyurea spray coating protection is to make sure the surface is free from any moisture, and to clean the material with an appropriate cleaner on a regular basis.