National Coatings Blog

Are you looking for a roof restoration or maintenance system that doesn’t require a roof tear-off? Or are you looking for a newly constructed roof that is renewable and sustainable? National Coatings Corporation has several roof coating systems using either acrylic or silicone coatings for restoration, maintenance and new construction. All of our systems are completed with a non-intrusive, low odor, application process that allows your business to remain open and conducting business as usual during construction. 

Our systems are able to restore and renew aged and failing asphalt, BUR, concrete, EPDM, Hypalon, metal, mod bit, PVC, single-plies, SPF, and TPO roofs. Our AcryPly Restoration Systems, ARM Maintenance Systems, AcryShield SPF Systems and AcryPly-D Systems deliver superior durability, energy-efficiency, a watertight, seamless, environmentally friendly substrate that can be renewed every 10-15 years, allowing you to avoid a costly and time consuming roof tear-off indefinitely. These systems have been in service on hundreds of millions of square feet of commercial and industrial roofs across the USA since 1981.

Our acrylic AcryShield and silicone SRC coatings are fully compliant with federal, state and municipal building codes and energy conservations programs. These coatings meet rigorous standards set by ASTM, AIA, FM, ICC-ES, UL, ENERGY STAR, CRRC, Miami-Dade County, and LEED. National Coatings was helped support the transition to ASTM D6083, the standard for a liquid applied acrylic coating used in roofing that provides the marketplace with objective performance criteria.

For more information on our acrylic or silicone coatings, our roof restoration, maintenance and new construction systems, download our free guides: Acrylic Product Brochure & Silicone Roof Coating Brochure.

National Coatings has engineered acrylic roof coating formulations for over 36 years to achieve a superior line of coatings that offer outstanding UV protection, strength, durability, elasticity and adhesion. The roof coatings used in our commercial roofing systems deliver renewable, watertight, seamless weatherproofing roof coating systems to protect your building and the assets inside of it.

Check out our most popular acrylic roof coatings and the different benefits they offer:

AcryShield A400 top coat has unique asphalt bleed-blocking properties making it particularly suited for a top coat over asphalt. A400 was developed specifically for areas in warm to moderate climates where temperatures do not drop below 0°F. A400 provides longevity and brightness with superior dirt pick-up resistance and protection against biological attack such as algae and mold. AcryShield A400 has excellent tensile strength, elongation, wet adhesion and weatherability, it exceeds all of the ASTM D6083 requirements except for low temperature flexibility.

AcryShield A500 is an excellent choice as a top coat over asphalt, single-ply, SPF, metal and concrete roofing. A500 can also be used as a base and top coat for both SPF and metal roofing. A500 provides longevity and brightness with superior dirt pick-up resistance and protection against biological attack such as algae and mold. A500 was developed specifically for areas where extra levels of low temperature flexibility is required (areas where temperatures drop below 0°F). AcryShield A500 exceeds all ASTM D6083 requirements and also offers excellent tensile strength, elongation, and wet adhesion.

AcryShield A502 base coat is the industry standard, low VOC, high performance base coat for hard to coat surfaces such as Hypalon, TPO, EPDM and PVC roofing. A502 base coat eliminates the need for costly TPO replacement and provides unique AcryLock technology to tenaciously adhere directly to EPDM, TPO and Hypalon without the need for additional primers or an etching rinse. A502 provides an additional layer of waterproofing, superior adhesion, and resistance to ponded water.

AcryShield A503 base coat is a one component, low VOC, water borne base coat with unique wet adhesion properties specifically designed to adhere to asphalt, mod bit, and concrete surfaces, allowing for superior protection against ponded water and eliminating the need for costly roof replacement.


AcryShield A510 top coat can be used in place of A500 in areas where additional re retardant packages are not required. A510 can be applied over asphalt, single-ply, SPF, metal and concrete roofing. A510 can also be used as a base and top coat for both SPF and metal roofing. A510 exceeds ASTM D6083.

AcryShield A550 top coat can be applied as a multi-purpose base and top coat. It has double the toughness of any other AcryShield coating. With its urethane- like strength and elongation properties, this product is excellent for superior protection against foot traffic and physical abuse. A550 exceeds ASTM D6083.

AcryShield A590 top coat has ULTRA high reflectance with superior UV protection. Can be applied as one coat over smooth substrates. Guaranteed to lower air conditioning energy costs and reduce roof degradation, prolonging the life of the roof, significantly lowering the life-cycle costs of the roof even more than our other cool roof products. A590 exceeds ASTM D6083.

AcryShield Quick Set products are specifically formulated to resist early wash- off associated with light rain and heavy dew weather conditions. The full line of AcryShield Quick Set base coats (A602 & A603) and top coats (A600, A610 & A640) can be applied on virtually any roofing substrate.

If you are looking for more information regarding roof coating products and systems that have proven performance, we are here to help you 800-423-9557. You can take a look at our past projects or download our FREE Product and Application Brochure.

Conducting a roof inspection before the wet seasons can help prevent many issues that lead to roof leaks and failures.

Below is a complilation of pictures addressing the most common roofing issues that occur. Proper roof maintenance and inspections allow you to avoid these major repairs; however, when they are avoided or overlooked, an expensive roof repair project could be waiting for you after that first rainstorm occurs.

1. Ponded Water: Ponded water can cause the surface of the roof to delaminate, blister, peel, and compromise adhesion of the roofing system to the building’s substrate.  This issue needs to be fixed immediately. To remedy ponded water, the AcryShield SPF Roofing System allows you to create a custom slope in areas where ponded water typically occurs, allowing the standing water to flow towards a drain.

2. Impacted or Clogged Drainage: A plumber is recommended to unclog the drain and then the ponded water needs to be inspected to make sure no further damage has occurred. (See Ponded Water above more information.)

3. Large Blister: Blisters occur because of several reasons, including: adhesion issues, ponded water, an aging membrane and more. This is another issue that needs to be fixed immediately as water penetration is likely to occur. Contact a Roofing Professional with zero obligation to determine your next steps to restoring your current roof.

4. Debris from Overhanging Trees: Branches can cause abrasions on the surface of the roof making it important to clip them away. Clogged drains and ponded water can occur from leaves, branches and other items that fall onto the roof. Ensure the rooftop is clean and free from any debris.

5. Mastic Cracking at Pipe Jack: When seals are failing and not functioning as designed, water penetration can occur. All joints and flashings need to be inspected to ensure seals have good flexibility (not brittle), adhesion, and water resistance.

6. Plant Growth: Weeds, trees, and plants can grow out of the smallest cracks on your roof. Carefully remove any form of plant growth immediately as this can cause several issues including: improper drainage, damage from roots, inadequate adhesion, ponded water, etc… Do not pull or yank the plant from the roof as the roots may have penetrated through the surface and this could cause even more damage. Contact a roofing professional if you think this could be the case for your roof.

National Coatings is here to help you. If your roof is experiencing any or all of these situations, contact us. We can provide you with a cost savings solution that will allow you to restore and maintain your current roof while avoiding a costly and timely roof tear-off. For more information, download our Free Systems Brochure.