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Feasibility of Meeting 25% VOC Standard for Aerosol Adhesives

Public workshop discussing the feasibility of meeting the 25% VOC standard for aerosol adhesives, including industry proposals, category definitions, labeling requirements, and future technology assessment. Compliance with statutory requirements and survey data analysis are also presented.

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Feasibility of Meeting 25% VOC Standard for Aerosol Adhesives

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  1. Public Workshop to Discuss the Feasibility of Meeting the 25 Percent VOC Standard for Aerosol Adhesives February 8, 2000 California Environmental Protection Agency Air Resources Board

  2. Agenda • Introduction • Staff Presentation • Industry Presentations • Discussion • Industry Proposal • Category Definitions • Labeling Requirements • Prohibition on Toxics • Future Technology Assessment

  3. Statutory Requirements • Health & Safety Code Section 41712 requires the ARB to conduct a technology assessment on the feasibility of establishing a standard(s) that is more stringent than the present 75% VOC standard • Standard(s) must represent best available retrofit control technology

  4. Statutory Requirements • Health & Safety Code 41712 requires all consumer product regulations to be: • technologically feasible • limit is already being met by at least one product • limit can be reasonably met in a timeframe provided through additional development efforts • commercially feasible • maintain basic market demand for a product category

  5. ARB Survey Review of 1998 AerosolAdhesive Survey Data • 47 companies responded • 136 products in survey (incl. industrial) • Four categories: • Mounting • High Performance • Repositionable • General Purpose

  6. ARB Survey Aerosol Adhesives1998 CA Sales and Emissions Sales (tons/yr) VOC (tons/yr) Adhesive Category Mounting 49 30 High Performance* 425 267 Repositionable 41 30 General Purpose* 524 376 Total 1,039 703 *General Purpose and High Performance comprise about 50% and 40% of the sales and VOC emissions, respectively.

  7. ARB Survey VOC Levels per Category All Products No. of Range Average % Products (%) (weighted) Mounting 5 39-72 61 High Performance 54 21-92 63 Repositionable 17 25-90 73 General Purpose 60 0-95 72 136 0-95 68

  8. ARB Survey Methylene Chloride Use in Aerosol Adhesives Adhesive Categories MeCl (tons/yr) MeCl VOC Percent Mounting .2 <.01 1 High Performance 6.1 .02 33 Repositionable 1.8 .06 10 General Purpose 10.2 .03 56 Total 18.3 .03 100

  9. ARB Survey All Aerosol Adhesive Products (%VOC) * * *Formulated with eitherMeCl, Perchloroethylene or Water

  10. NPCA Proposal NPCA Proposal • Eliminate the 25% VOC Standard • Three Categories • Special Purpose (70% VOC) • Other Mist (65% VOC) • Other Web (55% VOC)

  11. NPCA Proposal NPCA Proposal cont’d • Definition of special purpose adhesives: “adhesives for demanding uses for mounting or special substrate applications…” Where mounting application adhesives are defined as: “an aerosol adhesive intended primarily for use in mounting photographs, artwork, and any other drawn or printed media to a backing (paper, board, cloth)”

  12. NPCA Proposal NPCA Proposal cont’d • Definition of special purpose adhesives: “adhesives for demanding uses for mounting or special substrate applications…” Where special applications include: a. flexible vinyl, polysytrene based plastic materials incl. polystyrene foam, Sytrofoam, and polyolefins b. auto headliners, auto bonding rubber to rubber/metal where high temp, strength and chemical resistance are req’d c. cabinet and countertop touchup/repair, edge bonding”

  13. NPCA Proposal NPCA Proposal cont’d • Definition of other mist (particle) sprays: “an aerosol adhesive which delivers a particle or mist spray, resulting in the formation of fine, discrete particles that yield a generally uniform and smooth application of adhesive to the substrate. The spray pattern must be a solid mist, conical mist or fan spray pattern.”

  14. NPCA Proposal NPCA Proposal cont’d • Definition of other web (lace) sprays: “an aerosol adhesive which delivers a spray resulting in a non-uniform pattern of adhesive applied to the substrate which resembles a spider’s web. Web spray aerosol adhesives are generally applied to the substrate in a fan pattern.”

  15. NPCA Proposal Other Mist Spray Adhesivesby %VOC Tons per year

  16. NPCA Proposal Other Web Spray Adhesivesby % VOC Tons per year

  17. NPCA Proposal Special Purpose Adhesivesby %VOC Tons per year

  18. NPCA Proposal Product Distribution by Category Sales Emissions VOC Wt-Avg No. tpy tpy Range % VOC Without MeCl/Perc: Mist 24 408 300 28-92 74 Web 12 41 26 42-95 65 Specialty 68 555 364 0-89 66 With MeCl/Perc: Mist 11 2 1 19-57 32 Web 6 15 5 21-40 30 Specialty 15 17 6 25-75 35

  19. NPCA Proposal No. of Aerosol Adhesivesper %VOC Range <55 >55-60 >60-65 >65-70 >70 Web Spray 7 3 1 4 3 Mist Spray 14 2 1 2 16 Special Purpose 15 8 10 16 34

  20. NPCA Proposal Special Purpose AdhesivesProducts per %VOC & Applications* <55 >55-60 >60-65 >65-70 >70 Polystyrene Foam 11 6 8 11 26 High Pr. Lam 2 2 1 5 2 Headliner 1 0 2 1 3 Gasket 0 0 0 0 0 Mounting 1 1 0 0 3 Flex. Vinyl 1 0 4 4 4 Polyolefins 0 2 2 5 4 * Some adhesives are counted for more than one application

  21. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Polystyrene Foam 11 6 8 11 26 • 62 total products (32 mist/30 web) • Products below 55%VOC contain MeCl • Concerns with acetone “substrate attack”

  22. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • High Pr. Lam 2 2 1 5 2 • 12 total products (1 mist/11 web) • Products below 55%VOC contain MeCl • 3 products near 60% VOC

  23. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Headliner 1 0 2 1 3 • 7 total products (all web) • Product below 55% contains MeCl • 2 products in 60-65% VOC range

  24. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Gasket 0 0 0 0 0 • No Identified gasket adhesives meeting definition in NPCA proposal

  25. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Mounting 1 1 0 0 3 • 5 total products (all mist) • Product below 55% VOC contains MeCl • Ensure “archival quality” properties

  26. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Flex. Vinyl 1 0 4 4 4 • 13 total products (1 mist/12 web) • Product below 55% VOC contains MeCl • 4 products in 60-65% VOC range • Plasticizer resistance is necessary • Some supported vinyl adhesives are lower than 65% VOC

  27. NPCA Proposal Special Purpose AdhesivesNo. Products per %VOC Range/Application • <55 >55-60 >60-65 >65-70 >70 • Polyolefins 0 2 2 5 4 • 13 total products (2 mist/11 web) • Most products labeled for asbestos abatement & constr. • 2 products near 60% VOC

  28. For Discussion • Industry Proposal • Category Definitions • Labeling Requirements • Prohibition on Toxics • methylene chloride • perchloroethylene • Future Technical Assessment

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