My plan was to paint my home office a light green base coat and rag off a darker shade of green. I rolled on a shade of light green paint and let it dry for a couple of days. I then used a roller and painted a ~18" wide column from ceiling to floor and ragged off before proceeding. The instructions I had stated not to rag off the leading edge until the next 18" cloumn is painted. The problem I noticed right away was that by the time I painted the second column the leading edge had dried enough that it was difficult to rag off. It left a noticable dark stripe down the wall. I was able to change my technique and didn't have the problem in the rest of the room but I do have 2 noticable dark stripes on one of the walls. The rest of the room looks excellent and I would hate to have to start over. Is there anything I can do to make the 2 stripes blend in with the rest of the wall?
VPlasterman
07-30-05, 10:54 AM
You could repeat this same problem on a sample board. Then try to rag "on" a diluted or glaze version of the base coat. If it looks like something you like then try it on your wall.
Or you could attempt to redo the effected portion and "fade" into the good portion.
kimeyers
08-01-05, 12:03 PM
Your technique is close, but not what most decorative painters use. The idea is to leave a "wet edge" to blend each section. Most painters use a 2 x 2 square, not a full column which would take much longer to work. With the 2 x 2, always apply new swatch of paint to the "oldest" unworked section. (does that make sense?) Also, using straight paint would dry too fast--glaze will extend the drying time.
WALLS&PAINT
08-01-05, 04:56 PM
Well, there is a good and a bad to the demarcation lines(burn lines).
Glad everything worked out for you on the continuing walls, Not for sure what you changed to the technique that worked for you, but here are some things you may consider and then again, the end result for the one wall may be to just bite the bullet and repaint doing the same technique you mentioned that worked for you.
Lap lines do occur at times, depending on the glazes used, and the paints mixed with the glazes. Some glazes don't like some paints , and some glazes don't do well on some base wall finishes. This even goes for the professional glazes. Some like to stay within their own properties.
So, if you havent' done anything yet, one thing you might try is taking a scotchbrite pad, or a light to medium sanding block , try lightly sanding the areas where the burned lines appear. Dust really good, take your base and reapply very lightly to feather out really good into the previous finished areas. Let dry , then use your glaze mixture again and lightly apply using the same method you were using , just be a little careful on the feathered out edges so this will blend in with the previous work you have already done.
Sometimes, it is almost impossible to duplicate the very same finish and having the glaze mixture to blend into the exact same look as before, especailly when lap lines have tacked up creating the hot spots. You can almost pull your hair out trying to get this smoothed and blended nicely with the previously, short of this, just redoing the wall is sometimes your better friend.
Lots of things will cause your glaze to start tacking up, some are as I mentioned earlier, tempertures in the house, and outside as well, outside walls, southern exposure walls, certain brands of glazes, overworking the glazes, rolling the glazes on and creating open spots for the glazes to start breathing will cause premature setting up, certain paint sheens and brands, glaze to paint ratio, air blowing on the working wall, etc. Those are just a few things.
Good luck on repairing your wall, or redoing. Your wall finish sounds really nice. :)