FROM: Frank Murch
RE: Reaction of Valve adapter seals with different solvent
Following is a study of Valve adapter seals that shows how the seals react with different solvents after being in the solvents for 30 days at about room temperature.
- Some sample Valve adapter seals and five 2 ounce glass containers with plastic lids were obtained and two seals were put in each glass container.
- The glass containers were then filled about with 20g solvent and the lids were marked with the name of the solvent. Following five solvents were used: Acetone, IPA, Toluene, RV – 507 Texanol, RV – 372 Terpineol.
- Each of these containers were then left at room temperature for 30 days.
- After a month the containers were then photographed and carefully observed to find any residue that was seprated form any of the seals.
Bottom: Seals Tested in IPA (No visible residue or change)
Bottom: Seals tested in RV – 507 Texanol
None of the Solvents seem to have any structure deteriorating effects on the seals. The left over solvent in each container was free of any seal particles. The tested seals were identical to the original samples.