Comparing Waterproofing Systems: Cold Fluid-Applied Membranes vs. Self-Adhered Sheet Membranes

Posted by Dean Linthicum on Dec 20, 2021 10:06:42 AM

Whether you are in the residential or commercial building industry or in the new construction or building maintenance business space, waterproofing is not something to be overlooked. Waterproofing systems work by creating physical barriers to water. They keep water out of places it doesn’t belong and in places where it does belong.

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Topics: Coating Application Preparation, Liquid Applied Waterproofing, waterproofing, Fluid-applied Waterproof Membranes, Membrane Surface Preparation, Water-blocking Materials

Concrete Surface Preparation Methods When You Can’t Sandblast

Posted by Jeff Raglani on Aug 30, 2017 11:00:00 AM

The first thing that usually comes to mind when people think of profiling concrete to prepare for coating application is sandblasting. Unfortunately, this method may not always be practical. Sandblasting is loud and can create excessive dust so other alternatives are sometimes required.

When applying elastomeric coatings over concrete, abrading the surface is almost always required. This prerequisite to abrading the surface is twofold:

1) Remove the “laitance” or weak surface layer of the concrete.
2) Create an anchor profile for the coating to adhere.

The requirement which most coating manufacturers use to measure the roughness of the concrete surface is the Concrete Surface Profile or “CSP”. CSP was developed by the International Coating Repair Institute (ICRI) and is divided into 10 classifications often depicted by molded rubber comparison chips (CSP 1-10) as shown below.

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Topics: CIM blog topic, Coating Application Preparation