 PreTox 2000 Fast
Dry
Description:
PreTox 2000 Fast Dry is a unique, liquid, over coating designed to minimize leachable lead
levels in spent residues produced in the removal of lead based paint. Designed to be
applied as a thick (5-40 mil) temporary over coating to a surface prior to paint removal.
PreTox 2000 is removed after complete drying, along with the leaded paint film, as part of
the paint removal operation. PreTox 2000 stabilizes lead in the waste, rendering it
non-hazardous for disposal.
Storage:
PreTox 2000 in liquid form is flammable. Keep away from heat, sparks and flame.
Surface Preparation:
PreTox 2000 requires no surface preparation. PreTox will adhere to a surface that is ready
for coating removal operations.
Mixing:
Some product settling is likely. Storing can upside down for 24 hours prior to use may
facilitate mixing. Stir each can of PreTox 2000 thoroughly using either a hand paddle or
mechanical mixing bar, such as a jiffy mixer, to ensure complete homogenization before
application. If settlement is heavy because of long storage, pour off liquid and
reintroduce to the settlement gradually while mixing. Product will then be ready for use.
IT IS IMPORTANT TO THOROUGHLY MIX PRETOX 2000 PRIOR TO USE TO ENSURE PROPER PERFORMANCE.
Application:
PreTox 2000 may be applied by a variety of techniques, including brush, roller, and spray
(airless or conventional). When using an airless sprayer, it is important to either remove
pump and spray gun filters or to use a 20 mesh filter or larger. The minimum recommended
spray tip size is .045. A .045 to .050 tip should be optimum with a fan suited for each
particular job, ie: .445 for narrow substrates, .645 for broad substrates.
An application of 20 wet mils will be adequate for most
abrasive blasting projects. An application of 10 wet mils will be adequate for most power
tool or recyclable abrasive projects. Application cost can be optimized by using the
Application Optimization Procedure (see page 12).
PROPER APPLICATION AMOUNT CAN ONLY BE CONFIRMED THROUGH USE OF TCLP TESTS. NEXTEC, INC.
RECOMMENDS THAT TCLP TESTS BE CONDUCTED BEFORE PRETOX 2000 IS USED TO DETERMINE
APPROPRIATE APPLICATION RATE. NEXTEC, INC. ALSO RECOMMENDS THAT TCLP TESTS BE CONDUCTED
BEFORE DISPOSING OF ANY RESIDUE AS NON-HAZARDOUS WASTE AND FOLLOWING ALL FEDERAL AND LOCAL
WASTE DISPOSAL REGULATIONS.
Ventilation:
NOT RECOMMENDED FOR ENCLOSED SPACES. ENSURE ADEQUATE VENTILATION OF SOLVENT VAPORS TO
PREVENT FIRE AND EXPLOSION HAZARDS.
Drying:
Dry time will vary with application technique, film thickness and environmental conditions
(particularly temperature). PreTox 2000 is a lacquer based coating and dries solely by
solvent evaporation. Spraying PreTox 2000 will result in faster drying than will spreading
techniques such as brush or roller. Typical drying times are less than one hour.
Coverage:
Coverage of PreTox 2000 is approximately 40 to 160 sq. ft./gallon, depending on
application rate. Average coverage is 80 sq. ft./gallon. Waste, spillage, over spray, etc.
may reduce practical coverage rates. Always figure coverage based on wet mils (100%
solids).
Thinning:
THINNING IS NOT RECOMMENDED. However, when necessary, PreTox 2000 may be thinned using
small amounts of aromatic or aliphatic solvents such as VM&P Naptha or Toluene. PreTox
2000 is readily removable from tools, application equipment, etc., with the same solvents
used for thinning. Aromatic hydrocarbons such as xylene, toluene and aromatic naphtha may
give faster clean-up of dried material. NOTE SHOULD BE MADE THAT WHILE THE VOC LEVELS OF
THE PRODUCT ARE WITHIN THE REGULATORY GUIDELINES, OVER THINNING MAY RAISE VOC CONTENTS TO
ABOVE REGULATORY LEVELS, REDUCE PRODUCT EFFECTIVENESS AND PROLONG DRYING TIMES.
Removal:
Remove PreTox 2000 along with the underlying lead paint with any industry standard removal
techniques such as abrasive blasting and mechanical removal equipment.
Note: Effectiveness of PreTox 2000 depends upon the
integration of PreTox 2000 with the paint residue. Only sufficient coating thickness of
PreTox 2000 will ensure adequate control of lead leachability. PRETOX 2000 DOES NOT RENDER
OLD PAINT NON-TOXIC, IT REDUCES THE LEACHABILITY OF THE PAINT RESIDUE. PRETOX 2000 DOES
NOT ELIMINATE THE NEED FOR CONTAINMENT OR PERSONAL PROTECTIVE EQUIPMENT DURING THE PAINT
REMOVAL PROCESS.
Application optimization:
By obtaining a control sample and testing PreTox application rates prior to starting a
project, the application of PreTox can be optimized. The following represents an example
of the optimization procedure:
1. Locate six (6) areas that can be segregated from each
other so that independent samples can be collected. Area should be large enough to
generate enough waste for a TCLP test, typically 300 grams. For abrasive blasting, four
square feet is usually adequate.
2. Leave one (1) test area free of a PreTox coating. Cover
each succeeding area with 10, 20 30, 40 and 50 wet mils, respectively.
3. Allow to dry thoroughly.
4. Remove coating from each test area with chosen method
ie: abrasive blasting, needle gun, etc. Collect each independent sample following EPA or
ASTM sampling protocol and send to an accredited lab for TCLP testing.
5. When test results are received, choose the application
rate that achieved a BDL (Below Detectable Limits) result and add five (5) wet mils. This
will be the recommended, optimum application rate.
|
4050 Westmark Drive. Dubuque, Iowa 52002 www.pretox.com
1-800-338-8296