Testing of glove efficacy against sprayed isocyanate coatings utilizing a reciprocating permeation panel

Details

• Personal Author:
  Broadwater K ; Ceballos, Diana M. ; Crampton R ; Dills R ; Milbauer M ; Reeb-Whitaker C ; Sasakura M ; Yost MG
• Description:
  Objectives: Modify a permeation panel to evaluate dermal protective clothing for resistance to sprayed coatings with minimal variability in spray paint loading across the test panel. Determine isocyanate protection effectiveness of natural rubber latex (5 mil or 0.13mm), nitrile rubber (5 mil or 0.13mm), and butyl rubber (13 mil or 0.33mm) glove materials against a commonly used automotive clear coat formulation. The latex and nitrile gloves were the type used by the local autobody spray painters. Methods: Glove materials were tested by spraying paint onto an automated reciprocating permeation panel (permeation panel II). Temperature, relative humidity, and spray conditions were controlled to optimize paint loading homogeneity as evaluated by gravimetric analysis. Isocyanate permeation was measured using 1-(2-pyridyl)-piperazine-coated fiber-glass filters analyzed by a modified version of the OSHA 42/PV2034 methods. Results: Latex exhibited a higher permeation rate compared with nitrile for isocyanates (1,6-hexamethylene diisocyanate (HDI) and isophorone diisocyanate monomers) and both materials presented permeation at all of the time points suggesting a fast isocyanate breakthrough. Butyl material exhibited no permeation or breakthrough for isocyanates under the tested conditions. The spray application at 69+/-8 degrees F was optimally homogeneous at 45+/-0.5mg weight of dry clear coat per 5cm2. Conclusions: The permeation panel II is a reliable method to assess dermal protective clothing performance against polymerizing coatings. Commonly used 5-mil (0.13-mm) latex and nitrile gloves were determined to be ineffective barriers against the isocyanates found in a commonly used clear-coat formulation while butyl gloves were protective. [Description provided by NIOSH]
• Subjects:
  Asthma Asthma, Occupational Hypersensitivity Irritants Isocyanates Occupational Health Paint Personal Protective Equipment Protective Clothing Respiratory Tract Diseases Risk Assessment Risk Factors Rubber Safety Skin

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• Keywords:
  Author Keywords: Automotive Clear Coats Bronchial-asthma Butyl Rubber Exposure-levels Gloves Monomers Natural Rubber Latex Nitrile Rubber Paints Permeation Personal-protection Personal-protective-equipment Protective-clothing Respiratory-irritants Respiratory-system-disorders Risk-factors Sensitization Spray-painting

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• ISSN:
  0003-4878
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 10 ; OSHA Region 5 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  50-59
• Volume:
  58
• Issue:
  1
• NIOSHTIC Number:
  nn:20043762
• Citation:
  Ann Occup Hyg 2014 Jan; 58(1):50-59
• Contact Point Address:
  Diana M. Ceballos, Department of Environmental and Occupational Health Sciences, University of Washington, Box 357234, Seattle, WA 98195-7234
• Email:
  dceballos@cdc.gov
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20090901
• Source Full Name:
  Annals of Occupational Hygiene
• End Date:
  20130831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6653ef750e9a90c39eb9a2586c0f36bb39877e4c670708bd2d5abd1477bb198fa7134a0846db26c75bc85acc3acbf0043b44c9a98ee38bf0c19adcb017bd4948
• Download URL:
  https://stacks.cdc.gov/view/cdc/195578/cdc_195578_DS1.pdf
• File Type:
  [PDF - 1.79 MB ]