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Substitutes in Integral Skin Polyurethane

Substitutes are reviewed on the basis of ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptable and unacceptable substitutes are updated several times each year. A chronological list of SNAP updates is also available.

Note: SNAP Notices and Final Rules published in the Federal Register take precedence over all information on the web site.

Note: Under the section 610 Nonessential Products Ban, the sale and distribution of integral skin foam manufactured with HCFCs (with the exception of auto safety foam) was banned as of January 1, 1994. HCFCs were banned from auto safety integral skin foam effective January 1, 1996.

Acceptable Substitutes for ODS in Integral Skin Foam

Substitute (and blends including that substitute) ODS Being Replaced
HFC-134a CFC-11, HCFCs
Methylene Chloride CFC-11
HFC-152a CFC-11, HCFCs
Acetone CFC-11, HCFCs
Saturated Light Hydrocarbons (C3-C6) CFC-11, HCFCs
Electroset Technology CFC-11; HCFC-22, HCFC-142b, and blends thereof
Carbon Dioxide CFC-11, HCFCs
Formic Acid CFC-11, HCFCs
Water HCFCs
HFC-245fa CFC-11, HCFCs
Exxsol Blowing Agents HCFCs
Methyl Formate CFC-11, HCFCs
Blends of HFC-245fa and HCFC-22 Blends of HCFC-141b and HCFC-22 (where HFC-245fa substitutes for HCFC-141b)
Ecomate CFCs, HCFCs
HFC-365mfc HCFC-141b; HCFC-22, HCFC-142b, and blends thereof
Formacel® TI
HCFC-22, HCFC-142b
HFO-1234ze HCFC-22, HCFC-142b, and blends thereof
Trans-1-chloro-3,3,3-trifluoroprop-1-ene CFC-11, HCFC-141b
Formacel® Z-6 HCFC-22, HCFC-142b, and blends thereof

Substitutes for ODS that are Acceptable with Use Conditions in Integral Skin Foam

None at this time for either CFC-11 or HCFCs.

Substitutes for ODS that are Acceptable with Narrowed Use Restrictions in Integral Skin Foam

None at this time for either CFC-11 or HCFCs.

Unacceptable Substitutes

Substitute ODS Being Replaced
HCFC-124 All

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