Latest Discussions : Plumbing


06:18AM | 09/18/04
Member Since: 09/17/04
1 lifetime posts
It appears our Americast sink was not installed properly. Water has gotten under one spot along the side, and it looks like rust is eating through to the top edge on one side. There is a gap of about 1/8 inch between the sink rim and Corian countertop. The rim has expanded a little at that point. Can the rust be cleaned out to stop further damage? Can I pack something under the rim to kill the rust?


06:53AM | 09/18/04
You may have a warranty claim and not an installation failure. I am prejudice against the Americast products and other plumbers are not. The Americast originated as an economical and lighter approach to cast iron. Installing a real cast iron tub or sink is a job. Some plumbers tell people they don't even make cast iron anymore.

The Americast system is an enameled steel sink with a thick coating. Enameled steel is cheaper than stainless steel. These are very prone to chipping and I am surprised one of these were installed with a good corian countertop.

The coating can't rust so it must be where the steel sink is connected to the coating.

Cleaning rust off and painting with appliance paint will usually stop rust. But you may have some seperation beyond the surface that you see.

I would call about a warranty claim. Manufacturing defects happen with all products.


07:09PM | 12/11/19
My Americast sink is rusting on one side what do I do? Is there some kinda warranty looks awful.


07:13PM | 12/11/19
What can I clean the rust off with?


11:21AM | 02/19/20
Member Since: 02/19/20
1 lifetime posts
Here's what I did... I removed the sink and cleaned off the loose rust as best I could. My kitchen sink is white and this is the 2nd attempt to stop the rust from bleeding out from beneath the sink through the caulking. I didn't try to clean to the bare metal, just scraped and bushed off any loose rust. I then made sure the area with rust was dry. I let a fan blow on the area for several hours. Make sure you have plenty of ventilation when doing these next steps. With the sink turned upside down, I sprayed at least 3 coats of white Flex Seal around the underneath area that were bleeding with rust. I let each coat dry 24 hours before adding the next coat. I started this process on a Thursday and reinstalled the sink (with a new faucet) on Sunday evening, making sure the Flex Seal was dry. I didn't worry about getting the Flex Seal on the edge of the sink that would be seen because I was going to caulk the sink once I re-installed. I tried doing something similar a couple of years ago with another type paint but is failed within 24 hours. With the Flex Seal, it has been several weeks and so far it looks great!

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