How can you patch marcite pool finish?

Answer 1

I've had to do several small patch jobs (8" x 8") due to rebar ties rusting through. I called several pool builders for 1.) advice on how to do the repair and 2.) materials. One local builder had some extra and filled a baggie for me. Getting ready for my fourth repair this morning. -Rick

Answer: I admit I'm not familiar with marcite. However, in regards to the rebar rust spots. Simply filling them in will allow them to return within a few months. Ideally, you'll need to cut down an inch or so, and use a grinder to grind down the long rebar/rebar tie. Then use a plaster patch. All other products to "cover" rebar rust spots are only temporary, and failure to eliminate the source of the rust will allow it to return soon.

Answer 2

It's Very easy. First use a grinder with a cut off wheel. Make a square using a strait edge with a black marker. Grind down about 1/2 to 3/4 inch. Remove marcite with a hammer and chisel down to the concrete. Clean area with a wire brush and wash with water and allow to dry. Marcite patch comes in 80lb pre-mixed bags. Call pool companies around your area. They can order it for you. You will also need a bonding agent such as weld crete. That only comes in 1 gallon cans. you can get this at hardware stores. Paint on the bonding agent and allow to dry. Mix up enough pre-mix marcite. This stuff sets up in about 3 to 5 minutes so work quickly. Use a sponge or trowel to smooth the surface. That's it. For cracks. Grind the crack 1/2 to 3/4 inches and repeat the above steps.