CPR Log Cleaner and Brightener - 1/2 Gal.
CPR - Bring Your Logs Back to Life with CPR Log Cleaner and Wood Brightener. CPR is used to clean and brighten uncoated wood that is dirty, faded or gray from UV exposure. Mix CPR to the brightening solution strength for use on new construction just prior to staining to remove dirt and grime from logs during the building process and to break down mill glaze. Mixed at the log cleaning solution strength—use for periodic cleaning of stained logs to extend the life of your stain.
One container makes 4 to 8 gallons of solution depending on cleaning strength desired.
Advantages Using CPR Log Cleaner & Brightener Easy to Use Mixes With Water
Removes Mill Scale & Dirt
Reverses the UV Effects of the Sun
Extends the Life of Your Stain
Mixes In Two Strengths
Cleans 100 to 150 sq. feet per gallon.
Can be applied with a sprayer or brush.
Product shipping weight 6 lbs
Why should I use CPR instead of bleach?
Oxygen bleach is significantly less environmentally harmful or dangerous than chlorine bleach or oxalic acid, yet can do an excellent job of cleaning and bleaching. While it needs to be thoroughly rinsed from any wood it is applied to (just like chlorine bleach or oxalic acid), there is far less risk of damage to coatings applied on wood that has a little oxygen bleach left in it than wood with a little chlorine bleach or oxalic acid.
CPR should NOT be used on Redwood or Hemlock, as it causes severe discoloration of the wood. In addition, it will discolor some Cedar wood so should therefore be very carefully tested prior to use on a Cedar home of any kind.
NOTE: When using bleach of any kind, make sure you test a small area before proceeding with the entire project. Oxidizing chemicals can cause undesired color shifts, including tannin bleeding, in various woods. You should be prepared to use whatever cleaner or bleach will work without causing unwanted color shifts.
How do I remove water stains?
Try sanding with a 60 or 80 grit sandpaper first. Any sort of chemical can damage the wood even further and cause more discoloration. Practice your sanding technique and try to blend discolored areas into surrounding areas first. If that doesn't work, you may have to resort to chemicals that will need to be applied exactly according to directions and very thoroughly rinsed off. Try the least harsh chemical first and only resort to a very harsh chemical if the others don't work.
In order of harshness:
- Sodium per carbonate (like Sashco's CPR)
- Household chlorine bleach and/or bleach and TSP mix (no stronger than a 10% solution!)
- Oxalic acid or 35% hydrogen peroxide (medical grade)
Applying CPR Sodium percarbonate Log Cleaner & Brightener
- Decide if you need to use the clean or brightener strength.
- Wear protective eyewear, such as safety glasses with side
shields or goggles, when applying this product. Neoprene
gloves and long-sleeved clothing are recommended to help
protect skin. Hydrogen peroxide is released when CPR is dissolved
in water, so use with good ventilation.
- Brush any dirt, loose material or other contaminants from
wood surfaces to ensure that CPR makes good contact with
the surface you wish to clean or brighten. Keep the solution
off surfaces you do not want bleached.
- Use in warm weather, between 60° and 90°F, for best results.
*NOTE: CPR is not recommended for use on redwood or other
high tannin woods. CPR may occasionally darken these woods
- please test first.
(for less severe discoloration and surface cleaning)
Mix 1/2 of the container with 4 gallons of clean water in a
clean 5-gallon plastic pail.
(for aggressive cleaning)
Mix the entire container with 4 gallons of clean water in a
clean 5-gallon plastic pail.
Stir thoroughly until the powder is mostly dissolved (which
will take a few minutes, depending on water temperature). The
solution will begin to “fizz� as the powder dissolves. Not all of
the powder will completely dissolve in the solution; even if all
of the powder is not completely dissolved, the solution is very
usable. For the best and most consistent results, the solution
should be used within 4 hours.
At either strength, solution coverage is
between 100 and 150 square feet per gallon
(500-750 square feet per 5 gallons), depending
on the wood porosity.
- Apply CPR to one wall at a time, starting at
the bottom and working completely across, 2-5
- When the bottom 2-5 logs are completely
cleaned and/or brightened, then move up
the wall to the next 2-5 logs.
- Continue in a similar pattern to the top of the wall.
- Work only on
one small area at a time (15-25 sq. ft.) for best
results. Rinse with clean water as you go.
via garden sprayer, brush or mop.
- Allow the
solution to work for 5-20 minutes, keeping the
surfaces wet with additional CPR solution.
best results, vigorously scrub the surfaces with a
stiff-bristle brush to remove unsound surface
- After you’ve cleaned the entire wall with
the CPR solution, starting at the top, rinse the
entire wall thoroughly and allow to dry before
application of preservatives or stains.
applications of CPR solution may be necessary
for tougher discolorations, more severe UV
damage and/or heavily weathered wood surfaces.
Clean brushes and equipment with soap and
Avoid contact with eyes and skin and do not
ingest. Keep away from children and animals.