Effective Solutions for Typical Lead Paint Scenarios
LeadDefender® has been proven in the marketplace for over 10 years; recently a comprehensive scientific study following US EPA test methods was conducted by an independent laboratory to validate LeadDefender®’s proven ability to seal and treat lead paint hazards under a wide variety of uses including 1) All-in-One Primer and Topcoat, 2) Primer + Name Brand Latex Topcoat, 3) Primer + Standard Epoxy Encapsulant, 4) Sealant and Treatment Prior to Demolition and Disposal, 5) Prior to Disposal. This case study describes effective solutions for typical lead paint scenarios such as chipping/peeling paint, multiple layers of lead paint, interior/exterior, renovation, demolition… read more
The following table summarizes the observations and test results from the study’s six typical lead paint scenarios. Note: To test the robust treatment capabilities of LeadDefender®, test material selected contained extremely high lead levels of 60,000 – 100,000 kg/mg; typical residential lead levels average 10,000 – 40,000 kg/mg. Testing confirmed that LeadDefender® is applicable for use on a variety of interior and exterior materials as well as multiple layers of lead paint remediation activities. Also provided below is an example of LeadDefender® treatment results for typical residential lead levels with application of one coat of LeadDefender® at 8 mils wet; confirming LeadDefender® treatment results well below RCRA TCLP limit of 5.0 mg/l.
Example: LeadDefender® Test Results – Typical Residential Lead Levels
| Use | Application (Base Material) | Total Lead Levels(mg/kg) | Before As-Is(mg/L) | After LeadDefender® Treatment (mg/L) | % Reduction |
| 1 | Primer & Topcoat (Interior Wood Trim) | 37,000 | 7.3 | 1.2 | 84% |
LeadDefender® Test Results – High Level Lead Treatment (TCLP)
| Use | Application (Base Material) | RCRA TCLP Limit(mg/L) | Before As-Is(mg/L) | After LeadDefender® Treatment (mg/L) | % Reduction |
| 1 | Primer & Topcoat (Interior Wood Trim) | 5.0 | 38.5 | 2.79 | 93% |
| 2 | Primer + Name Brand Latex Paint (Exterior Wood Siding) | 5.0 | 28.5 | 1.22 | 96% |
| 3 | Primer + Standard Poly Encapsulant (Interior Wood Paneling) | 5.0 | 15.8 | 1.58 | 90% |
| 4 | Sealant & Treatment Prior to Demolition & Disposal (Exterior Wood Siding/Concrete) | 5.0 | 72.3 | 2.4 | 97% |
| 5 | Prior to Disposal (Paint Chips) | 5.0 | 52.9 | 1.49 | 97% |
LeadDefender® Independent Laboratory Treatment Results
LeadDefender® has been successfully tested on over 1,000 samples with similar successful results. The following tables demonstrate LeadDefender®’s robust ability to successfully treat lead to below US EPA lead standard of 5.0 mg/L TCLP Pb
Industrial Lead Hazard Treatment Project Sampling Results
Sample ID | Type of Material | Wipe Sample Before Treatment (ug/ft2) | Wipe Sample | TCLP Sample (mg/L) |
W-1 | Wood | 4,980 | <500* | 0.60 |
W-3 | Cinderblock | 184,000 | 336 | Non Detect |
W-5 | Sheet Rock | 4,680 | 306 | 0.26 |
W-8 | Concrete | 1,690 | 251 | Non Detect |
W-10 | Ceramic Tile | 2,470 | 202 | Non Detect |
* Two coats
LeadDefender® Historical Sample Subset
| Date | Typical Historical Samples | Pre-ECOBND® LBP TCLP | Post-ECOBND® LBP TCLP | %Reduction |
| 11/16/2006 | Paint sample A | 77.1 mg/L | 2.34 mg/L | 96.66% |
| 03/02/2007 | Paint sample B | 68.8 mg/L | 0.56 mg/L | 99.18% |
| 03/15/2007 | Paint sample C | 116 mg/L | 0.90 mg/L | 99.22% |
| 06/03/2007 | Paint sample D | 85.6 mg/L | 1.30 mg/L | 98.41% |
| 09/21/2009 | Paint sample E | 77.15 mg/L | 0.50 mg/L | 99.35% |
| 08/02/2010 | Paint sample F | 56.45 mg/L | 0.25 mg/L | 99.56% |
| 02/11/2011 | Paint sample G | 87.2 mg/L | 1.20 mg/L | 98.62% |
| 02/11/2011 | Paint sample H | 65.58 mg/L | 0.33 mg/L | 99.50% |
| 02/24/2011 | Paint sample I | 64.9 mg/L | 1.00 mg/L | 98.46% |
| 03/01/2011 | Paint sample J | 223.5 mg/L | 0.30 mg/L | 99.87% |
| 04/28/2011 | Paint sample K | 143.77 mg/L | 1.33 mg/L | 99.08% |
| 05/11/2011 | Paint sample L | 80.4 mg/L | 1.33 mg/L | 98.35% |
| 10/10/2011 | Paint sample M | 67.73 mg/L | 0.67 mg/L | 99.01% |
| 11/18/2011 | Paint sample N | 61.16 mg/L | 0.33 mg/L | 99.46% |
| 01/17/2012 | Paint sample O | 51.74 mg/L | 0.83 mg/L | 98.40% |
| 01/26/2012 | Paint sample P | 85.33 mg/L | 0.83 mg/L | 99.03% |
| 01/26/2012 | Paint sample Q | 51.74 mg/L | 0.67 mg/L | 98.71% |
| 02/14/2012 | Paint sample R | 68.41 mg/L | 0.67 mg/L | 99.02% |
| 07/20/2012 | Paint sample S | 26.82 mg/L | 0.83 mg/L | 96.91% |
| 12/19/2012 | Paint sample T | 83.66 mg/L | 0.56 mg/L | 99.33% |