C
Charlie D
Gentlemen:
It has been a year or so since my last post. I am the one that was painting panels off a ’55 Studebaker weekly at Vo Tech. They came out pretty good. The instructor painted all of them but two. The ones I was forced by a substitute to paint came out surprisingly nice. Of course everything I do during this first painting project is new to me. You guys have provided valuable feedback and foresight in the past and I need some more now.
I have been painting the shell while it is on the rotisserie. The last couple of days I have been color sanding the roof. It was sprayed with 1 coat of 1-1-1 epoxy primer as a seal coat. That was followed up by three medium coats of Restoration Shop Acrylic Urethane from TCP Global. It was painted about three weeks ago. It had orange peel and the first step was to remove it with 800 wet on one of those soft blocks. Yesterday I removed the 800 scratches with Trizact 1,500. On about a third of the roof I started removing the 1,500 scratches with a Mirca 3,000 6” pad.
I was so excited about how I could see the florescent lights and items sitting on the shelf being reflected in the area that had been damp-sanded with the 3,000. I took some pictures and thought to myself there was nothing to this new process and was feeling quite proud of myself. I then noticed that when I moved my head a little bit the edges of the florescent lights were not straight but had a series of waves/ripples in them. My enthusiasm tapered off pretty quickly and I realized that I must have a urethane wave situation.
I remember this being discussed on this forum as I follow it almost daily. All of my epoxy and primers are SPI. I do not know if I am going to attack this urethane wave or not. My wife told me today that I may not be happy knowing it is there. I think for displaying the car at old car meets and Studebaker events not many people of the general public are going to notice it. Of course if I enter it for judging the judges will probably pick it up.
I have researched this topic on the web and there were many excellent responses. Three individuals that I recognized from this site had posted excellent advice. They were Shine, Jim C. and BondoKing. I need to ask a few questions.
1. It appears that I need to basically block sand the urethane wave out of the panel. I am no stranger to block sanding as I have accumulated a few hundred hours on this car. My favorite block sanding block is a 21” adjustable flexible block that has the three stainless rods that can be inserted or removed. This block allows me to follow the contours of the Studebaker on the roof, deck lid, hood, etc. I use a SIM spray guide coat to highlight the lows. I have a short rubber block about 6 inches long that has nails on each side to attach the paper. I have three or four Dura blocks. Would I lightly mist the roof with the guide coat and then block sand with say a 400 or 600 roll of dry sandpaper on the blocks until all has been removed?
2. How long does the block have to be to remove the waves? Obviously the 2x4x1/2” soft block did not stay on the highs good enough to get rid of the waves but did remove the orange peel.
3. If I break through to the seal coat can I come back over the top of the block sanded acrylic urethane with a couple more coats of the acrylic urethane similar to shooting clear over sanded clear?
Thank you for your help. I have sprayed the remainder of the shell since I painted the roof and it has come out better with not as much orange peel. I will try to attach a couple of photos.
Charlie D.
It has been a year or so since my last post. I am the one that was painting panels off a ’55 Studebaker weekly at Vo Tech. They came out pretty good. The instructor painted all of them but two. The ones I was forced by a substitute to paint came out surprisingly nice. Of course everything I do during this first painting project is new to me. You guys have provided valuable feedback and foresight in the past and I need some more now.
I have been painting the shell while it is on the rotisserie. The last couple of days I have been color sanding the roof. It was sprayed with 1 coat of 1-1-1 epoxy primer as a seal coat. That was followed up by three medium coats of Restoration Shop Acrylic Urethane from TCP Global. It was painted about three weeks ago. It had orange peel and the first step was to remove it with 800 wet on one of those soft blocks. Yesterday I removed the 800 scratches with Trizact 1,500. On about a third of the roof I started removing the 1,500 scratches with a Mirca 3,000 6” pad.
I was so excited about how I could see the florescent lights and items sitting on the shelf being reflected in the area that had been damp-sanded with the 3,000. I took some pictures and thought to myself there was nothing to this new process and was feeling quite proud of myself. I then noticed that when I moved my head a little bit the edges of the florescent lights were not straight but had a series of waves/ripples in them. My enthusiasm tapered off pretty quickly and I realized that I must have a urethane wave situation.
I remember this being discussed on this forum as I follow it almost daily. All of my epoxy and primers are SPI. I do not know if I am going to attack this urethane wave or not. My wife told me today that I may not be happy knowing it is there. I think for displaying the car at old car meets and Studebaker events not many people of the general public are going to notice it. Of course if I enter it for judging the judges will probably pick it up.
I have researched this topic on the web and there were many excellent responses. Three individuals that I recognized from this site had posted excellent advice. They were Shine, Jim C. and BondoKing. I need to ask a few questions.
1. It appears that I need to basically block sand the urethane wave out of the panel. I am no stranger to block sanding as I have accumulated a few hundred hours on this car. My favorite block sanding block is a 21” adjustable flexible block that has the three stainless rods that can be inserted or removed. This block allows me to follow the contours of the Studebaker on the roof, deck lid, hood, etc. I use a SIM spray guide coat to highlight the lows. I have a short rubber block about 6 inches long that has nails on each side to attach the paper. I have three or four Dura blocks. Would I lightly mist the roof with the guide coat and then block sand with say a 400 or 600 roll of dry sandpaper on the blocks until all has been removed?
2. How long does the block have to be to remove the waves? Obviously the 2x4x1/2” soft block did not stay on the highs good enough to get rid of the waves but did remove the orange peel.
3. If I break through to the seal coat can I come back over the top of the block sanded acrylic urethane with a couple more coats of the acrylic urethane similar to shooting clear over sanded clear?
Thank you for your help. I have sprayed the remainder of the shell since I painted the roof and it has come out better with not as much orange peel. I will try to attach a couple of photos.
Charlie D.