Tuesday, March 25, 2014

Final Touches for Finishing the Sample Project



In the last post I more or less demonstrated the process of sealing a pattern carved and stamped on a piece of leather. The idea was to show how I have finished leather for many years. The only difference between what I had done on the sample and what I used to do was to use an acrylic sealer on the pattern rather than the lacquer. I am strongly considering switching to the acrylic sealer after this experience.

If you look back at the photo of the pattern after it had been sealed, before I put the antique finish over it, you will notice only a slight change in the color of the leather. This is what most people are after. They seal the leather so that it will not absorb the colors from the antique finish or any other product that might be used for a similar result. I am impressed with the overall results of how the acrylic finish worked and I have no problems in recommending it to you for use on your leather projects.

If you do go back to the previous post you might also want to look at the photo of the sample project after it was antiqued. I purposely brushed over the edge of the pattern when using the acrylic sealer to show you how it would look. I do not know if I can properly explain to you how difficult it was for me to do that because it goes against every fiber of how I want my work to look. Please remember, I did these three spots on purpose.

The photo below is the same one that was on the last post after the antique finish had been applied. I buffed it again with a piece of sheepskin and with a rag before the photo was taken. The difference between the photo then and now is that this version has the spots numbered. There are two coats of acrylic sealer on the pattern. The spots on the outside of the tooled area that are numbered have only a single coat. If you happen to find some others please let me know so that I can fire the brush man who worked on this job.

miscues with acrylic sealer
Miscues with acrylic sealer - numbered
The number 1 and 2 spots are not nearly as bad as the one for number three. All of these spots do stick out like a sore thumb to me but may not be as obvious or as terrible looking to some. After the antique finish has been applied to the leather there is very little that can be done to undo the spots of acrylic finish on the outlying areas. This is because the finish penetrates the surface of the leather to a bit. The sealer did its job perfectly on these spots without needing a second coat to make sure they were sealed. This is usually the way it works, the spots you do not want sealed are the ones that are the best.

If one were to try to use a solvent, water, or some kind of paint remover I am afraid that it would spell disaster for your project. A solvent or a paint remover might sound like a good idea because it might remove acrylic paint from wood or metal, but it will penetrate the grain of the leather and stain it badly. This can be demonstrated by placing a drop of water on a piece of leather which has been antiqued and not finished with a seal coat. The antique finish will become spotted where the water came in contact with it.

For very small spots of sealer it might be best to leave them alone and do nothing. I developed a method for removing the sealer where it is not supposed to be sealed. Please bear in mind that it is not particularly a great method but it does work fairly well. This method should be used only on very small, obvious spots. On accidental sealer spots I used the tip of the knife shown below to carefully scrape it off the surface. This method was performed using the tip of the knife and very lightly scraping the sealer off the leather. I would then touch up the spot with some more antique finish.
 
skiving knife
Skiving knife
The knife shown above came in one of the first tool kits that I ordered from Tandy Leather Company. It is not a particularly special knife or a great quality knife, but it has come in handy for a lot of tasks that I had to perform over the years. This is a skiving knife that is used in skiving leather. Skiving is done to take off some of the bulk from the flesh side of the leather. I will be honest, I never really mastered the use of this knife to skive leather. Probably the most that I ever skived was the end of a piece of leather lacing so that it would fit better into the two-pronged needle.

Please note that one of the side effects of using the tip of the skiving knife to scrape off the spots of sealer is that it can cause the scraped area to darken much more than intended when touched up. I would recommend that you experiment on a piece of scrap leather before you do something like this that you have spent a lot of time tooling.

Below is a photo of the sample project after it has been sealed with the Tan Kote from Fiebing. You will not see a lot of shine coming off the leather because because of the lighting I chose, plus the photo was taken before the Tan Kote had dried completely. Looking at the area that matches the number three shown above you will notice a bit of a dark ring around the area where I purposely brushed past the edge of the pattern. I believe that this is because I did not have the antique finish properly mixed which caused the solvents to add more stain to the leather.

project sealed with tan kote
Sample project sealed with Tan Kote
If you were to dip a brush into the dark brown liquid in your antique finish it would look darker than the paste when applied to the leather. To confirm, open your jar of antique finish and look at the top of the paste. You will see a little bit of this liquid on the top of the antiquing. Just remember, if you use a good brush to perform this experiment that you will need to spend some extra time cleaning it!
Below is a photo of the piece of sheepskin that I used to apply the acrylic sealer. Notice the color that it has picked up from applying the sealer on to the leather. This is a normal happening, at least in my experience. Some of the color would come off with the application of the sealer because there will be some excess antique finish in the carved lines and the stamped impressions.

sheepskin after applying Tan Kote
Sheepskin after applying Tan Kote
Remember, if you have any questions comments, please let me know. If you have a good idea to share I would like to hear about it and share it with others. Let me hear from you!

Have fun!

No comments:

Post a Comment