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Wall Coatings Installation Guides

photoAcrymax offers architectural coatings for exterior walls that are used on two distinct substrate types — masonry and metal. As with any architectural coating system there are three things that must be done to insure long term performance. First of course is to choose high quality coatings such as Acrymax. Second is to properly prepare the surface to be coated. Finally, the coating system must be properly applied. When you demand performance you should specify Acrymax coatings!

 

Masonry Walls

Acrymax elastomeric wall coatings can be used on a wide variety of surfaces including stucco, exterior insulation and finish systems (EIFS), pre-cast concrete and other masonry.

Preparation - Careful surface preparation is essential to promote proper bonding of the elastomeric wall coating. Power washing is recommended to remove dust, dirt, and loose materials. Any mold or mildew present must also be removed. Cracks that are 1/16" wide or larger should be repaired. For small to mid-sized cracks, use a 100% acrylic caulk or Acrymax AF-315 Fibrated Acrylic. For larger cracks, holes or damaged masonry, use a cementitious masonry patching material.

Priming - Although elastomeric wall coatings are designed to be applied directly to properly prepared masonry surfaces priming is suggested. An alkali-resistant primer sealer will protect against “alkali-burn” of the elastomeric wall coating and will also help seal and condition the surface to be coated. A sealer will reduce porosity and will lock down any chalk remaining on the surface after preparation.

Application - Elastomeric wall coatings perform best when applied to achieve a dry film thickness of 12-18 mils to provide good crack-bridging capability. Two coats are recommended. Elastomeric coatings can be applied by brush, roller, or spray. For large areas spray application followed by back-rolling or roller application with long nap roller is typical. A brush will work well for smaller areas.

PDF Click here for installation guide for elastomeric wall coatings for masonry

 

Metal Walls

Many metal wall panels have been coated with factory applied PVDF coatings. These high performance fluoropolymer coatings with an expected life of 30 or more years have been specified since the 1960’s. Acrymax now offers a state-of-the-art waterbased PVDF coating system for coating these aging wall panels.

Preparation - Careful surface preparation is essential to promote proper bonding of the coatings. Power washing with suitable cleanser is recommended to remove dust, dirt, and loose materials. Any rust must be removed.

Priming - Areas where rust has been removed must be primed with a rust inhibitive primer. Adhesion tests should also be done to determine if the coating system has adequate adhesion to the surface to be coated. A primer to promote adhesion may be necessary on some projects. Consult Acrymax for additional information.

Application - Acrymax PVDF coatings must be applied in 2 - 3 coats to achieve minimum 7-10 mil dry film thickness. Coatings can be applied by brush, roller, or spray. For large areas spray application or roller application with medium nap roller is typical. A brush will work well for smaller areas.

PDF Click here for installation guide for PVDF coatings for metal wall panels

 

 
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