Typical Uses and Treatment Results

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
After Treatment (ug/ft2)

TCLP Sample
After Treatment

(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%