rich121, I have never seen this happen. Is there some source of heat by the records?
You obviously need to replace the liners. Take apart a sleeve and expose the glue. You have to find a solvent that will dissolve the glue. First try isopropyl alcohol. Use either a clean cotton or microfiber cloth. Saturate it with Alcohol and wipe gently. If the glue comes off you are in business if not you have to move to a non polar solvent. A chlorofluorocarbon will work best. "Last" the record preservative is one but at $50 a little bottle not so practical. This https://shop.advanceautoparts.com/p/crc-brakleen-brake-parts-cleaner-19-wt.-oz.-05089/7060459-p?prod...= is very practical. I have used this exact brand on a record with absolutely no deleterious effects. Test on the sleeve first. If it works remove the bulk of the glue with your cloth always moving to a clean area of the cloth. Then spray the record directly to rinse it off. It dries very fast and will not hurt the label. You might want to do this outside and you will want to wear gloves. After the record dries give it a run through your ultrasonic unit then put it back in a new sleeve. Good to go:)
You obviously need to replace the liners. Take apart a sleeve and expose the glue. You have to find a solvent that will dissolve the glue. First try isopropyl alcohol. Use either a clean cotton or microfiber cloth. Saturate it with Alcohol and wipe gently. If the glue comes off you are in business if not you have to move to a non polar solvent. A chlorofluorocarbon will work best. "Last" the record preservative is one but at $50 a little bottle not so practical. This https://shop.advanceautoparts.com/p/crc-brakleen-brake-parts-cleaner-19-wt.-oz.-05089/7060459-p?prod...= is very practical. I have used this exact brand on a record with absolutely no deleterious effects. Test on the sleeve first. If it works remove the bulk of the glue with your cloth always moving to a clean area of the cloth. Then spray the record directly to rinse it off. It dries very fast and will not hurt the label. You might want to do this outside and you will want to wear gloves. After the record dries give it a run through your ultrasonic unit then put it back in a new sleeve. Good to go:)