|
  |
|
|
Wood Finishing -Old Surface Preparation
Preparing an old painted surface for repainting or for an enamel finish simply calls for sandpapering to remove dirt, grease and roughness, assuming that the old paint is firmly attached to the surface. If it shows any tendency to crack and scale or alligator it should be removed entirely from the surface with sandpaper or liquid paint remover. Old enamel surfaces which are to be refinished call for sandpapering just enough to cut the old gloss and clean up the surface. Defects such as holes, bruises and cracks should, of course, be filled with good putty. Old varnish to be refinished with varnish, paint or enamel should be rubbed down clean and smooth with No. 1 sandpaper just enough to remove the gloss, dirt and grease, assuming that the old varnish has not crazed or alligatored. If it shows indications of an infirm hold on the wood, better take off all of the varnish with liquid or paste varnish remover. After sandpapering to remove high gloss some finishers prefer to wash down a varnished surface with benzole or with warm water and soda to make it absolutely safe to paint or enamel. The soda bites into the varnish a little. Old varnished surfaces which are to be refinished with stain call for stripping off all of the varnish, using liquid or paste varnish remover. A thorough job must be done. If any of the varnish is allowed to remain on the surface, even in a very thin coat, it will prevent new stain from penetrating into the wood. A penetrating stain is then needed to do an even coloring of the wood. After stripping off the varnish a most thorough washing should be done to remove any wax left on the surface by the remover. Wash up with benzole, preferably. Benzine, naphtha or turpentine will also do this clean-up work.
On low-priced work, restaining is sometimes done without removing the old varnish. The old varnish is rubbed down with No. 1 sandpaper to remove the gloss and clean up any dirt or grease on it. Then it is washed down with benzole brushed on to cut the old varnish a little,or is washed down with hot water in which soda has been dissolved to do the cutting of the old varnish. The stain used for such work is a oil stain which must be brushed on very deftly with as few strokes of the brush as possible to avoid raising or lifting the old varnish. Brush this stain only in one direction. For very cheap work a good brush hand can coat the surface with shellac to which a little pigment has been added to make a stain. These processes simply color the wood and supply a gloss. They do not pretend to enhance the beauty of the wood. In this sort of work it is sometimes necessary to touch-up bare, worn-through spots with a coat of thin oil stain before staining the whole surface, this is to make the worn places match the whole surface in color. Old stained or natural varnished surfaces from which the old finish has been stripped off with varnish remover are often too dark in color to produce a nice finish with the new stain. Then it is necessary to bleach out the old color before restaining. The bleaching methods are presented later in this chapter.
|
Contributor's Note
This intel reflects only one of my activities. I also write about and/or have websites on Vespa Scooters, Lambretta Scooters, Hardy Banana plants, Medical memorabilia, reborn baby dolls and much more. Hope you enjoyed the read, Philip Davey
|
|
|
 |
|
PLEASE VISIT THE CONTRIBUTOR'S WEBSITE
No reactions yet.
Please login or sign up to rate this intel.
Please login or sign up to add a comment.
The copyright for this content entitled "Wood Finishing -Old Surface Preparation" has been specified by the contributor as:
All Rights Reserved
This content may not be copied, distributed or adapted by anyone under any circumstances.
|
|
|
This intel was contributed by Phildave
Phildave
|
May, 2012
2008
January, February, March, April, May, June, July, August, September, October, November, December
2009
January, February, March, April, May, June, July, August, September, October, November, December
2010
January, February, March, April, May, June, July, August, September, October, November, December
2011
January, February, March, April, May, June, July, August, September, October, November, December
2012
January, February, March, April, May
|
|
Not a member yet?
Qondio is a powerful network for making it online. If you have a website to
promote, we can help.
Sign up and get in on the action.
|
|
Welcome to Qondio! Discover the awesome power this network can deliver by going to our About page. Or you could skip straight to the Sign Up form.
|
|
