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APPLICATION:
SARA products are engineered for spray application, airless spray
recommended.
(1) Atomization of SARA products during spraying is neither
needed nor desired.
(2) When removing Original Equipment finishes (2 to 3.5 mils or
50 to 100 microns) apply roughly 8 to 10 mils of remover (200 to 250
microns).
(3) When removing multiple layers, increase the thickness of
remover applied by about 2 mills (50 microns) per paint layer.
(4) For heavy application (over 20 mils, 250 microns) a mist coat
is applied first an allowed to sit for about one hour, followed buy a
heavier build coat. A good rule of thumb for heavy applications is to
apply the remover thick enough so that you are loosing sight of the
color of the coating to be removed. This will be around 30 mils, or 760
microns.
(5) Do not apply SARA removers heavier than 50 mils or 1270
microns. This will prevent the remover from avalanching.
(6) Multiple spray passes should be applied to reach a thickness
of 40-50 mils. Appling too heavy in one pass may lead to avalanching of
the remover.
PUMP SIZE minimum: remove
pick-up filter from bottom of unit and gun filter.
Capacity, volume @ 2000 psi .25 gpm; Motor 1/2hp; Tip size Min
0.019(0.5mm); Recommended tip 0.021-0.025
Using to small of a tip or too
much pressure will result in shearing of the emulsion. This will show up
as clear water droplets on the surface. Use only the pressure
required to form the spray fan. SARA products should be sprayed as
gently as possible.
LARGEST PUMP EVER USED:
Air driven 75:1 airless with 0.025 tip @ 23 psi air drive pressure.
SURFACE PREPARATION:
Before application, mask all paint surfaces not being stripped. SARA
removers will migrate under most masking tape and may damage the coating
you’re trying to protect. To remedy this: Cover the object with poly and
mask normally, then lay a second layer of tape over the first. If no
more SARA will be applied in, following 3-4 hours remove the second or
top layer of tape that has over spray on it.
COVERAGE:
In practical field situations, the coverage ranges from 40 to 90
square feet per US gallon. (1 to 2.2 sq. m. per Liter). This variation
is a result of differences in coating thickness and types of paint. Most
typical situations require 75 square feet per gallon. (1.5 sq. m/L)
DWELL TIME:
The time needed to lift a paint system will vary, depending on:
(1) Types of paints.
(2) Number of layers to the substrate.
(3) Substrate temperature.
(4) Ambient temperature.
Most paint systems will lift
between 1 and 6 hours.
When removing multiple finishes there may be poor adhesion between
repaints. In these cases the product may lift layers before reaching the
substrate. When this happens remove the lifted layers and reapply. Try
to avoid using water for removal of repaint layers. Applying water will
result in down time, waiting for the surface to dry before reapplication
of SARA products.
REMOVAL:
Removal of the lifted paints from the surface can be done by squeegee,
scraping, pressure washing or vacuum. Manual removal is used to remove
the bulk of the coatings before pressure washing to reduce mess and the
risk of remover and coating fallout damaging coatings on other equipment
or surfaces.
DISPOSAL:
Collect and dispose of the solid paint residue according to local
regulations. The paint remover along with rinse water itself is fully
biodegradable. DO NOT collect and/or store removed paint and remover
waste residue in metal containers.
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VARIABLES:
(1) Substrates that have been repainted many times for years with
several different coatings. When removing multiple paint
applications/systems there will be poor adhesion between repaints, in
these cases the remover may lift in layers. When this happens, the
lifted or softened paints are to be removed and apply another coat of
SARA. Allow the product time to work.
(2) Often when removing thick / multiple coatings that are found
on historical type buildings the first thick application will be
absorbed into the coating. If the product is absorbed or starts to dry
on the surface before penetration is complete reapply another layer of
SARA. The SARA products are working properly when being absorbed.
TIPS:
(1) When possible plan for thick applications to be left on
overnight.
(2) Follow the sun, use the sun and shade, so the applied product
is in the shade (when desirable) as long as possible.
(3) Different types of coatings react in different ways (Coating
Removal and clean up); always do a test area prior to full application.
This will answer many of your questions, i.e. thickness of coating, time
needed and best method of removal.
(4) Ideal air temperature is between 50° F. and 85° F. Substrate
temperature is also very important to the overall job.
(5) Applying a light, first coat followed by a heavier second
coat about an hour later will ensure the product does not slide off and
will enhance performance.
(6) If removal of coatings is needed to facilitate reapplication
of more remover for topcoats lifting, avoid the use of water for
removal. Using water will require drying time below more remover can be
applied. It the lifted layers are removed by scrapping or squeegee,
immediate reapplication of SARA products is possible.
(7) Do not store or collect the remover in metal container. This
will deplete the product’s active ingredients. In addition DO NOT store
or collect removed paint and remover residue in metal containers. Wash
all application equipment with water and run water through the pump,
spray gun and hose-lines to clean them.
(8) DO NOT THIN SARA products.
SAFETY EQUIPMENT:
MSHA/NIOSH approved mist organic vapor cartridge.
Chemical splash goggles.
Rubber or
Neoprene gloves.
Coveralls.
Impervious boots.
If the product comes in direct contact with skin,
wash thoroughly with water.
TEMPERATURE:
For optimum performance, temperatures of 65F/18C or warmer are
recommended. Dwell time will increase as the temperature decreases. SARA
coating removers have been used successfully as low as freezing point.
CLEAN UP:
Once the paint residue has been removed, wash the surface thoroughly
with water (warm water if available).
STORAGE:
Do not store the product in direct sunlight. Protect the product from
freezing.
SHELF LIFE:
Separation can occur after 10 months to one year, or if the product has
been frozen. If separation has occurred the product will appear to have
lost some viscosity or will have clear areas of liquid on the surface
and look non homogeneous. Use a paint mixer (not a paint shaker) to
re-blend the product. This will take around 15 minutes for a 5 gallon /
20 liter paint. For drum size containers use the sprayer pump to
re-circulate the contents for about one-hour.
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