MIXING RATIOS:
50:1 (RECOMMENDED DILUTION): One (1) gallon 207® concentrate to 50 gallons clean water
75:1 (Medium Duty): One (1) gallon 207® concentrate to 75 gallons clean water.
100:1 (Light Duty): One (1) gallon 207® concentrate to 100 gallons clean water.
DO NOT EXCEED 50:1 MIX RATIO
APPLICATION METHODS:
WAB (WET ABRASIVE BLAST) or WAVB (WET ABRASIVE VAPOR BLAST) METHOD:
After mixing to the prescribed Mix Ratio at the water supply, apply 207® per normal WAB or WAVB cleaning processes. When all areas have been thoroughly WAB or WAVB cleaned, switch to Rinse Only on the blast equipment, or shut off grit supply as needed, to ensure a Rinse Only. A final rinse with 207® only (no grit) will ensure removal of any grit residue that may remain from the blasting procedure. The WAB or WAVB cleaning processes with 207® will ensure removal of any grit/paint residue that may remain from the abrasive blasting cleaning process and non-visible chlorides, nitrates or sulfates, MIC, sulfides, or other interference materials on the surface. Dry time will depend on ambient conditions such as humidity, wind, etc.
Do not allow ponding/pooling on flat surfaces. Surfaces are ready to coat when dry. In cool, humid conditions increasing airflow over the substrate may speed up drying time. Be careful not to contaminate the surface by touching it with your bare hands. Typical water consumption is 1 quart per minute (check blast manufacturer for actual flow).
POWER WASHING/UHP AFTER DRY ABRASIVE BLASTING METHOD:
207® is added in accordance with the prescribed Mix Ratio at the water supply. A power washing rinse with 207® will ensure removal of any grit/paint residue that may remain from the abrasive blasting cleaning process and non-visible chlorides, nitrates or sulfates, MIC, sulfides, or other interference materials on the surface. Dry time will depend on ambient conditions such as humidity, wind, etc. Do not allow ponding/pooling on flat surfaces. Substrates are ready to coat when dry. In cool, humid conditions increasing airflow over the substrate may speed up drying time. Typical water consumption is 1.5-4 gallons per minute for pressure washing and up to 40 GPM for UHP(check equipment manufacturer for actual flow).
Note: During the power wash application, it is important to apply the 207® with the power wash wand perpendicular (90°) to the surface and adequate dwell time, this allows for optimum chemical and kinetic energy to be achieved to the prepared surface.
PIPELINE FLOOD COATING CLEANING METHOD:
With the use of pipeline pigs and compressed air, the pipeline is first scrape cleaned out of the pipeline materials, then water and a series of cleaning pigs will be followed with 207® metal decontamination chemical, specifically designed to decontaminate the metal and provide an optimal surface to chemically bond coatings to the inside of the pipeline, as it is propelled between the pigs down controlled by compressed air in the pipeline. The UHP (ultra-high pressure) cleaning processes with 207® will ensure removal of any grit/paint residue that may remain from the abrasive blasting cleaning process and non-visible chlorides, nitrates or sulfates, MIC, sulfides, or other interference materials on the surface. Do not allow material to pond/pool on flat surfaces. Surfaces cleaned with 207® can be coated as soon as the substrate is dry, preferably during the same shift or the same workday.
HAND TOOL/POWER TOOL CLEANING:
207® can be applied to a surface using both a spray bottle or pump sprayer with properly mixed 207® material. Thoroughly wet the surface with mixture maintaining a wet surface while working material into the surface with either hand tools such as a stainless steel wire brush or power equipment. It is recommended to avoid carbon steel type abrasives as they can further deposit contaminants. It is important to utilize kinetic energy to work the mixed 207® solution into the surface in order to create a reaction with the substrate. Once cleaned the surface should be thoroughly flushed with fresh 207® solution. Do not allow the mixture to pond/pool on flat surfaces. Be careful not to contaminate the cleaned surface and allow material to evaporate and dry completely. Air movement will typically assist in faster dry times. It is important to maintain a clean work
TESTING:
Effectiveness of the 207® cleaning should be confirmed by testing the surface for residual contaminants using CleanCHX Pass or Fail Test Solution™ or commercially available contaminant testing kits before coating commences. Testing material should be thoroughly rinsed from the surface using an appropriate mixture of 207®
COATING APPLICATION:
Once cleaned surfaces should be coated to avoid contamination of the newly cleaned surface. Surfaces that have been cleaned utilizing 207® will typically resist flash rusting for a period of 72 or more hours, however, it is prudent to coat surfaces as quickly as possible after cleaning.
CLEANUP:
Clean hoses and equipment after each use. Flush all the equipment with water. Collect and dispose of cleanup waste in accordance with all local, State, Federal, and other ordinances.
