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Step by Step How to Waterproof and Repair Concrete Fountains:

Products Needed for pond and fountain repair & DIY waterproofing: PermaFlex, LRB (Liquid Rubber Base) and TAV (Thickening Activator)

Step 1: Prepare


The first thing you would do for pond and concrete fountain repair is to prepare the substrate. Meaning remove any loose crumbly substrate, make sure the substrate is clean, dry, free of any previous applied products, and foreign matter.


Step 2: Prime


Prime the substrate with PermaFlex (240 sq ft per gal). Cement block surfaces need 2 prime coats of PermaFlex. Shown using Light Grey.

Step 3: Patch


Patch and profile any joints, seams, cracks, holes and rough areas using LRB/TAV mixture (Liquid Rubber Base, Thickening Activator). 2-parts LRB is mixed with 1-part TAV. LRB can be used by itself (as a liquid membrane) to smooth out a rough floor. Wall/floor junctions require a 1” diameter bead of LRB/TAV mixture and most cracks use a 3/4" diameter bead. LRB/TAV  “Round Caulk Bead Chart”

Step 4: Topcoat


Topcoat using PermaFlex (240 sq ft per gal). Shown using Light Tan.

If chlorine, bromine, chemicals or the like will be used to maintain water quality; apply at least 1 coat of a good 2-part epoxy pool paint for extreme chemical resistance and the desired color.


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