Inna, I've never used LAST preservative, or any other kind of preservative treatments on my records.
As a record collector for many years, I did some research on the recommended storage procedures, and found that those worked quite well with no risk of unknown fluid effects.
The most important things that I have found for maximizing the LP is:
1) Storage on edge in reasonable quantities - so there is not any stress on the LP from stacking or leaning with weight on it.
2) Using a virgin vinyl or rice paper sleeve that can't leach any plastic stabilizers out of the record vinyl.
3) Using an outer sleeve to protect the record jacket, and placed on the LP with the jacket opening inside the outer sleeve to act as dust baffle.
4) Normal, regular cleaning of the disc with a good record cleaning process that doesn't include strong vinyl solvents.
5) Using a carbon fiber brush to keep dust off between wet cleanings.
6) Keep the stylus clean.
7) Keep the temp and humidity in normal living parameters, and keep the records out of direct sunlight.
I know that others use Last and have had good results. I have not, and cannot make a meaningful statement regarding its use over the long term. Frankly, I worry somewhat about the long term effects of any additives to the surface of my records.
As a record collector for many years, I did some research on the recommended storage procedures, and found that those worked quite well with no risk of unknown fluid effects.
The most important things that I have found for maximizing the LP is:
1) Storage on edge in reasonable quantities - so there is not any stress on the LP from stacking or leaning with weight on it.
2) Using a virgin vinyl or rice paper sleeve that can't leach any plastic stabilizers out of the record vinyl.
3) Using an outer sleeve to protect the record jacket, and placed on the LP with the jacket opening inside the outer sleeve to act as dust baffle.
4) Normal, regular cleaning of the disc with a good record cleaning process that doesn't include strong vinyl solvents.
5) Using a carbon fiber brush to keep dust off between wet cleanings.
6) Keep the stylus clean.
7) Keep the temp and humidity in normal living parameters, and keep the records out of direct sunlight.
I know that others use Last and have had good results. I have not, and cannot make a meaningful statement regarding its use over the long term. Frankly, I worry somewhat about the long term effects of any additives to the surface of my records.