OP
PineRidge
Super Member
Re: 3800 Pound South Bend 17\" Turn-Nado Lathe Project
We finally got the enamel stripped of the inside of the gearbox and the headstock castings. We decided on using a product called POR-15 to paint and seal the inside of all the castings. If any of you have ever used paint-over-rust products you know that it takes a bit of special preparation prior to painting with them.
We 1st used a chemical called Marine Clean to clean any residual oil or old paint stripper left behind from the pores of the castings followed by a clear water rinse.
We then used a chemical called Metal Prep which was mildly acidic and etched the metal giving the POR-15 a good base to adhere to.
Then we followed up with two brushed coats of silver POR-15 paint which cures out to a rock hard finish. Although you can use lacquer thinner as cleanup before the paint cures, nothing will touch it after it has dried. Once cured this stuff is impervious to all chemicals and cleaners, I can testify to that since I made the mistake of getting a bit of the paint on the back of my arm and it dried before I knew it was there. It's been there now for 5 days although I'm wearing the skin down with a washcloth each time that I shower. /forums/images/graemlins/smirk.gif
Here's a shot of the gearbox as it's being reassembled while resting on my workbench. As it goes back together each bearing is being checked and any that are questionable will be replaced.
We finally got the enamel stripped of the inside of the gearbox and the headstock castings. We decided on using a product called POR-15 to paint and seal the inside of all the castings. If any of you have ever used paint-over-rust products you know that it takes a bit of special preparation prior to painting with them.
We 1st used a chemical called Marine Clean to clean any residual oil or old paint stripper left behind from the pores of the castings followed by a clear water rinse.
We then used a chemical called Metal Prep which was mildly acidic and etched the metal giving the POR-15 a good base to adhere to.
Then we followed up with two brushed coats of silver POR-15 paint which cures out to a rock hard finish. Although you can use lacquer thinner as cleanup before the paint cures, nothing will touch it after it has dried. Once cured this stuff is impervious to all chemicals and cleaners, I can testify to that since I made the mistake of getting a bit of the paint on the back of my arm and it dried before I knew it was there. It's been there now for 5 days although I'm wearing the skin down with a washcloth each time that I shower. /forums/images/graemlins/smirk.gif
Here's a shot of the gearbox as it's being reassembled while resting on my workbench. As it goes back together each bearing is being checked and any that are questionable will be replaced.
