FAQs
What is DOWSIL OS-30 used for?
It is an odorless, ozone-safe silicone cleaning fluid used to clean contaminated surfaces, rinse parts after cleaning, and replace organic carrier fluids. With low surface tension and high purity, it lifts soils and then evaporates at room temperature, leaving parts clean and dry for the next process step.
Does OS-30 leave residue after drying?
No. OS-30 is a high-purity, volatile fluid that evaporates at room temperature, leaving surfaces dry with little residue. That clean evaporation makes it suitable for sensitive cleaning tasks. Allow adequate evaporation time before moving to bonding, coating, or the next process step.
How does OS-30 relate to OS-20 and OS-2?
OS-30 is part of the same DOWSIL OS family of volatile methylsiloxane cleaning fluids as OS-20 and OS-2. They share similar odorless, ozone-safe, low-surface-tension characteristics and are used for cleaning, rinsing, and as silicone carriers, differing mainly in their specific grade properties.
Can OS-30 be used after harsher cleaners?
Yes. Dow notes it is useful for rinsing parts after cleaning with stronger agents, taking advantage of its mild, clean-evaporating nature. This allows it to remove residues left by more aggressive solvents while leaving surfaces clean and dry, without introducing new contaminants.
How should OS-30 be handled?
As a volatile silicone fluid, OS-30 should be used with adequate ventilation, and disposal should follow local, state, and federal regulations. Always read the product and Safety Data Sheets before handling. The 500 mL bottle is a convenient size for smaller-scale or bench cleaning tasks.
