Jan 5, 2009

Green Paint Stripping with Smart Strip

Happy New Year! After a few unexpected travails, we're back in full swing on the project.

Our townhouse has beautiful original woodwork, much of which had been


painted over many, many times in the last 100 years. Most of the windows and doors had been painted, and we wanted to get an idea of the work involved and how feasible it was to strip them back to their original condition. BUT, no nasty cancer-causing chemicals for us, so we tried out 2 of the green paint removal products we found:
  • Soygel: highly-rated, made from soybeans by Franmar Chemicals

  • Smart Strip: brand new product from the Peel-Away folks

SoyGel by FranmarSmart Strip

We put them both to the test. Read More...

Window MoldingHands down, Smart Strip worked better for us on the multiple layers of paint on top of the original shellac. Also, Smart Strip had *no odor* at all, had a thicker consistency and was much easier to clean up. Used in tandem with the special Peel-Away paper, we made short work of the windows and doors ikn the master bedroom. To the right is a shot of the windows before stripping, and below the detail that we found after using Smart Strip:
Door molding stripped door molding


Our Method (YMMV...)

  1. Set up your work area by taping down rosin paper, and taping off areas you don't want to be stripped.Peel-Away
  2. Apply the Smart Strip with a brush. It's a thick, white paste that sticks to the surface pretty well. We slathered it on as thick as possible (~1/4").
  3. Next, we cut the strips of Peel-Away paper and applied to the doors and windows, completely covering the paste and overlapping it a bit. The paper slows down the drying process, allowing the product to work on the layers of paint.
  4. First, we waited 24 hours, but found that 48 hours was the right amount to get through all the layers.
  5. This is a good time to go and find Allway CS6 Contour Scraper Kit, a flat scraper, contractor bags, a nylon stripping brush, denatured alcohol, latex gloves and a ton of rags to clean the scrapers off. TIP: we used saved plastic grocery bags to wipe the scrapers off in. No mess!
  6. Gently pull off the Peel-Away paper, s-l-o-w-l-y, working perpendicular to detail in the molding. Smart Strip You should be getting several paint layers stuck to the paper, and sometimes all of the layers, with the shellac or varnish in a gel.
  7. Grab your scaper(s) and gently glide it across the now bubbled and soft paint layers on the wood. The paint should slide off easily. If it doesn't, work on the areas that do slide off, and plan on applying another treatment of Smart Strip.
  8. Wipe the scrapers off on the rags, or in the plastic grocery bags. Resist the temptation to wipe it on the rosin paper, as you will then be stepping in the goop, and tracking it around. Yes, that is from experience...
  9. Once all the loose paint is removed, pour the denatured alcohol into a spray bottle Stripping Molding and spray it liberally on the woodwork, scrub it vigorously with the nylon brush, and then wiping it off with clean rags. Move quickly over small areas, as the alcohol dries fast. TIP: if it's shellac underneath, Denatured Alcohol works. If it's varnish, use Mineral Spirits.

Hopefully, all of the shellac and varnish comes off easily with the rags and Denatured Alcohol/Mineral Spirits. If not, STOP, and just re-apply Smart Strip for 6-12 hours, and it will loosen the shellac. You will not get it off easily otherwise.

  • Do not scrape at hard paint - the woodwork will be destroyed, and you will be frustrated.
  • Do not let the Smart Strip dry with the Peel-Away paper on it. It's a hassle to get it off when dry.
  • Do not coat on more than you can remove in one stretch. What you put on, make sure you get it off before it dries.

Voila! You should have some darn fine woodwork in front of you. (Of course, the usual sanding, etc.will have to happen before applying a new stain or shellac.)

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6 comments:

Harlem Health said...

This is a great blog! We've just launched www.GetHealthyHarlem.org, a Harlem-based health information and social networking website. On it, we're trying to include information about being green, so this is great and informative. We plan to link to your site!

BlogMonkey said...

Harlem Health: thanks for the kind words. We wish you well, and happy to participate. Lots of great info on your site, and you just launched!

Best...

Nathan said...

Thanks for checking in on my blog. If you ever need a hand with anything in your house (I fixed up an 80 year old dump if you need references) let me know. These hands have been ACHING to pick up some tools. I'm not too far away, 129th and Lennox!

Let me know!
Nathan
nathan.a.larson@hotmail.com

Sam said...

Try the Best Green/Eco-Friendly Paint & Varnish Remover on this planet "OxyStrip"
Green/Eco-Friendly Paint & Varnish Removal Solution from MilesChemicalSolutions.com

"OxyStrip"

Excellent for Wood Refinish Projects / Home and Construction Paint & Varnish Removal Applications/ Indoor and Outdoor Paint Stripping Uses / Stays Wet & Active up to 24 Hours / Easy to Use Fast Acting Gel, Clings to Vertical Surfaces / Contains No-Hazardous Methylene Chloride or Flammable Solvents, Pleasant Scent.

Contact us at: http://www.mileschemicalsolutions.com/Oxy_Strip_1.htm
for Technical Bulletin and to purchase samples to test on your specific applications

renojl said...

Followed your method very closely. Some questions, comments.
1) The scrapers you recommended were very sharp. Thought they may be damaging wood. Any suggestions?
2) How did you determine whether to wipe with denatured alcohol or mineral spirits at end?
3) What was your technique to get final paint out of tough areas? Did you continue to apply Smart Strip or did you change to another chemical?

Thanks.

BlogMonkey said...

renojl:

1a.) yes, we use pretty sharp tools. I have always found that I do more damage with a dull blade than a sharp one. When it's sharp, you just glide through the material. When it's dull, you put your shoulder into it and... whoops! ... a gouge happens.
- focus on keeping the blades perfectly flat to the surface, with easy strokes.
- sanding will remove any minor sins

2a.) it depends on whether you have shellac or varnish on your walls. In fact, you may have both, in different layers! Ours happened to be shellac, so we use denatured alcohol.
- you can tell pretty easily by trying out both denatured alcohol and mineral spirits, one at a time. Douse a rag with one or the other, and wipe down an area. The correct chemical will cut right through the finish and remove it easily. If you use the wrong one, it will be gummy and sticky.

3a.) ugh. getting the paint out of the flower, leave and vine details plus the egg & dart sections wasn't fun.
- the nylon brush is really, really important here. After you've gotten most of the old paint off, get your spary bottle ot Denatured Alcohol or Mineral Spirits (see above), and spray it on a small section (1-2 feet).
- Grab the nylon brush and go at it vigorously. The remover will have softened the paint, and the alcohol will loosen the last bits of shellac.
- you will still need to gently carve and pick the lines with the specialty tools, but you'll get into a rythm where you do all the concave parts, then all the flat grooves, etc. Saves you from switching tools every 5 minutes...
-we stuck with Smart Strip. I can *completely* see where we might switch to something more caustic and agressive for those inside corners. Wifey refuses to work on them!

Best of luck and let us know how you get on.