With safety gear on, surface ready, and
surroundings protected, I was ready to start applying the
material. Relying on my test-patch results, I sprayed the
Peel-Away on heavily and evenly, about 1/8 to 1/4 inch thick,
depending on the thickness of the paint layers. To get an even
coat, it's necessary to direct the spray pattern perpendicular
to the surface to be coated. This wasn't difficult when coating
flat surfaces, but it got trickier when it came to the
multi-surfaced decorative trim pieces and turned spindles,
since the sprayed material won't go around corners. When
necessary, we'd apply the compound with a brush, trowel, or
even a rubber-gloved hand. At this juncture, it helped to have
an assistant or two to keep the process going, because the
special paper provided with the Peel-Away system has to be
applied over the wetted surface. One side of the paper is
plastic-laminated to prevent the stripping compound from drying
out while it's working. The paper has to be applied with the
plastic side out, and be embedded in the material, avoiding
trapped air bubbles as much as possible (Figure 5). Trapped air
can promote failure by allowing the compound to dry on the
surface.
| | Figure 5.The paper is
carefully pressed into place in an effort to eliminate
air bubbles, which would prematurely dry the
stripper. |
Capturing the details.
Typically, one person keeps the spray process going, while the
other two follow up with the paper application. This is fairly
easy when covering flat surfaces, but the intricate trim on
this Victorian slowed us way down. We used scissors to cut the
shapes for good tight wraps around all of the trim pieces. It
wasn't necessary to fit the paper into every contour, but
rather to create a "package" around the pieces, and contain the
stripper in the recesses of carvings and small dentils. The
trick was to apply the paper firmly to the surface without
manipulating it too much, thereby maintaining an even
distribution across the surface and on the corners. Papering
the gingerbread reminded me of wrapping odd-shaped Christmas
presents: At each new section, I'd have to decide how to wrap
each element.
Each container of Peel-Away is supposed to cover a specified
number of square feet, and the paper should cover that area,
but I found that because of all the details, I ran short and
had to order more.
Removing the paper.
It
took about two days for the Peel-Away to loosen the paint -
then I began the removal process. It worked best to start from
the bottom and work toward the top, in order to prevent the
upper sheets from pulling away the lower sections. Exposing too
much area at once can cause drying, which makes cleaning up the
details much more difficult. After working a putty knife under
the paint at the edge of the paper, paint and paper lifted off
in large sheets from the flat siding and trim areas, but in
much smaller pieces on the intricate surfaces. We removed as
much as we could by hand before beginning the rinsing process,
which further cleans the surface and removes residual solvent.
Rinsing can ordinarily be done with a hose and a scrub brush,
but using a pressure-washer was the only way to get the more
intricate gingerbread clean. You have to be careful with the
pressure, though - use too much and you risk damaging the
wood.
At this point we had removed about 98% of the paint from the
surface. The remaining 2% left in nooks and crannies had to be
removed by hand with small scrapers or picks, while the paint
was still soft from the solvent-process (Figure 6). Once all of
the paint was off, the surface had to be neutralized with
Peel-Away neutralizer solution - essentially acetic acid - and
allowed to dry. Skipping this step would be asking for trouble,
because the wood would remain chemically hostile to paint.
After neutralization, I checked the pH level with the
manufacturer's litmus paper. Some areas had to be treated a few
times to get the pH level close to neutral - between 7 and
8.
| | Figure 6.After
stripping, the remnants of the original painted
surface are removed with small picks and scrapers,
a hose and scrub brush, or by
pressure-washing. |
Waiting to Paint
Sixty to
ninety days of drying time is required before the newly
stripped wood can be repainted. I used a moisture meter to
monitor the moisture content in the wood as it dried.
Acceptable moisture levels for painting depend on the
equilibrium moisture-content of wood for the region you're
working in.
Repainting was fairly straightforward once all of the old
paint was removed. To be on the safe side when selecting paint,
I consulted a technician at Peel-Away, who recommended a
water-based acrylic primer called X-Out Plus (XIM Products,
1169 Bassett Rd., Westlake, OH 44145; 440/871-4737;
www.ximbonder.com). It's formulated to permit any excess
moisture still present in the wood to evaporate off, while
sealing bleeding stains in the wood - even the tannins present
in redwood or cedar. Two coats of primer followed by two
topcoats of Sherwin Williams Super Paint, a good quality latex,
made the house look like new again (Figure 7).
| | Figure 7.After
neutralizing the stripped surface with an acid
solution, the author allowed the wood to dry for
more than two months before repainting with two
coats of primer and two topcoats. |
Steve Allen
is president of
Allen Painting in Fortuna, Calif.