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Surface Decontamination of Asbestos by DeconGel 1101


Determine the surface decontamination efficacy of DeconGelTM 1101 on linoleum tile, painted drywall and concrete surfaces contaminated with Asbestos fibers (Chrysotile fibers) was performed with Transmission Electron Microscopy (TEM; ASTM Standard Test Method: D6480- 05) and Polarized Light Microscopy (PLM; EPA approved method for analysis of asbestos from bulk samples).

Hazardous Materials Relevance

Asbestos is a set of six naturally occurring silicate minerals exploited commercially for their desirable physical properties. They all have in common their long and thin fibrous crystals. The inhalation of asbestos fibers can cause serious illnesses, including malignant lung cancer, mesothelioma, and asbestosis.


  • Excellent surface decontamination was achieved by applying DeconGel 1101 onto surfaces contaminated with Asbestos. Decontamination efficacies (wt% based on the residual asbestos fibers on the surface of interest) were 99.9+% from painted drywall, linoleum tile and concrete surfaces.
  • Both semi-qualitative (tape lift adhesion sampling method followed by EPA approved PLM analysis) and semi-quantitative (ASTM standard test swipe sampling method followed by TEM analysis) methods have been utilized in these evaluations.
  • Application of asbestos contamination on the respective substrate and sampling tests were performed in CBI Polymers labs; Analysis of the samples were performed at independent labs (EMSL Analytical, Centennial, CO, and Bureau Veritas North America, Inc., Kennesaw, GA)

Tables 1 and 2 show the decontamination efficacies of DeconGel 1101 against asbestos on painted drywall and linoleum tile as determined by the tape lift adhesion test method and EPA approved PLM analysis method and on linoleum tile and concrete as determined by ASTM 6480-05 swipe sampling test method and TEM analysis respectively.

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