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A purge solution for removing water-based dehydrated paint residues from a paint delivery system includes 2-15 total weight percent of a purge concentrate diluted with solvent. The concentrate includes 20-99.5 total weight percent of a C4 alcohol or an alkoxylated C 4 alcohol, and 0.5-30 total weig

A purge solution for removing water-based dehydrated paint residues from a paint delivery system includes 2-15 total weight percent of a purge concentrate diluted with solvent. The concentrate includes 20-99.5 total weight percent of a C4 alcohol or an alkoxylated C 4 alcohol, and 0.5-30 total weight percent of an amine.

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What is claimed is: 1. A concentrate for preparing a water-based purge solvent, said concentrate comprising, on a total weight basis: 20-99.5% of a C4 alcohol or an alkoxylated C4 alcohol; and 0.5-30% of an amine; wherein said amine includes a fatty acid amine. 2. The purge solvent concentrate o

What is claimed is: 1. A concentrate for preparing a water-based purge solvent, said concentrate comprising, on a total weight basis: 20-99.5% of a C4 alcohol or an alkoxylated C4 alcohol; and 0.5-30% of an amine; wherein said amine includes a fatty acid amine. 2. The purge solvent concentrate of claim 1, wherein said fatty acid amine is an alkoxylated fatty acid amine. 3. The purge solvent concentrate of claim 1, wherein said amine comprises a mixture of a low molecular weight amine and an alkoxylated fatty acid amine. 4. The purge solvent concentrate of claim 3, wherein said amine comprises a mixture of dimethylethanolamine and an ethoxylated fatty acid amine. 5. The purge solvent concentrate of claim 3, wherein said low molecular weight amine is present from 1-20 total weight percent and said fatty acid amine is present from 0.1-20 total weight percent. 6. The purge solvent concentrate of claim 1, wherein said C4 alcohol comprises n-butanol. 7. The purge solvent concentrate of claim 1, wherein said alkoxylated C4 alcohol is a methoxylated C4 alcohol. 8. The purge solvent concentrate of claim 1 wherein said alkoxylated C4 alcohol is 3-methoxybutanol. 9. The purge solvent concentrate of claim 1, wherein said amine is present from 3 to 5 total weight percent. 10. The purge solvent concentrate of claim 1, further including a co-solvent selected from the group consisting of a surfactant, a glycol ether, acetone, a polyethylene glycol, and combinations thereof. 11. The purge solvent concentrate of claim 10, wherein said co-solvent is present in an amount from 0.1 to 90 weight percent. 12. The purge solvent concentrate of claim 10, wherein said co-solvent is a glycol ether which is infinitely soluble in water. 13. A purge solvent concentrate comprising, on a total weight basis: 20-99.5% n-butanol; 0.5-30% dimethylethanolamine; 0-10% of an ethoxylated fatty acid amine; 5-10% aminomethylpropanol; and 0.1-90% of a glycol ether which is infinitely soluble in water. 14. The purge solvent concentrate of claim 13, wherein said glycol ether is ethylene glycol monobutyl ether or propylene glycol monobutyl ether. 15. A concentrate for preparing a water-based purge solvent, said concentrate comprising on a total weight basis: 20-99.5% of a C4 alcohol or an alkoxylated C4 alcohol; 0.5-30% of an amine; and 0.1-90% of a co-solvent selected from the group consisting of surfactants, glycol ethers, acetone, polyethylene glycols, and combinations thereof; and wherein said amine comprises a mixture of an alkanolamine and a fatty acid amine. 16. The purge solvent concentrate of claim 15, wherein said alkanolamine is dimethyl ethanolamine. 17. The purge solvent concentrate of claim 15, wherein said fatty acid amine is an alkoxylated fatty acid amine. 18. A method of cleaning a paint delivery system comprising contacting at least a portion of said system with the purge solvent comprising, on a total weight basis; 2-15% of a purge solvent concentrate comprising on a total weight basis: 20-99. 5% of a C4 alcohol or an alkoxylated C4 alcohol: 0.5-30% of an amine; and 0.1-90% of a co-solvent selected from the group consisting of surfactants, glycol ethers, acetone, polyethylene glycols, and combinations thereof; and 85-98% of a solvent. 19. A method of cleaning a paint delivery system comprising contacting at least a portion of said system with a purge solvent consisting of: 2-15 total weight percent C4 alcohol or C1-C18 alkoxylated C4 alcohol dissolved in water. 20. The method of claim 18, wherein said amine is a C 2-C20 aminoalkyl alcohol. 21. The method of claim 20, wherein said amine is selected from the group consisting of aminomethylpropanol, dimethylethanolamine, monoethanolamine, and combinations thereof. 22. The method of claim 20, further including a surfactant. 23. The method of claim 18, wherein said co-solvent comprises a glycol ether having infinite solubility in water; wherein said glycol ether is present from 15-40 weight percent. 24. The method of claim 23, wherein said glycol ether is ethylene glycol monobutyl ether or propylene glycol monobutyl ether. 25. The method of claim 18, wherein said C4 alcohol is n-butanol. 26. The method of claim 18, wherein said solvent is water. 27. A method of cleaning a paint delivery system comprising contacting at least a portion of said system with the purge solvent comprising, on a total weight basis: 2-15% of a purge solvent concentrate comprising on a total weight basis: 20-99. 5% of a C4 alcohol or an alkoxylated C4 alcohol; and 0.5-30% of an amine; 85-98% of water.