Storage Recommendation

New PVA Rollers
When these recommended storage procedures are followed, ITW Rippey guarantees the shelf life of our PVA products to be one year from the date printed on each bag.

• PVA brushes should be stored in an ambient temperature environment, (between 65-75 degrees F or 18-24 degrees C)
• PVA brushes should be stored in the horizontal orientation so that the fluid the brushes are saturated with does not migrate to one end
• PVA brushes should not be stored in direct sunlight
• For best results, store the PVA brushes in an enclosed container away from any light source

Previously Installed
In order to prevent bacterial growth, the following recommendations are made for PVA brushes that have already been installed on a tool. In certain applications, (especially pilot lines), a scrubber will shut down for an extended period of time. However, the PVA brush may not necessarily be at the end of its useful life. In order to be sure the brush performs properly when the tool is put back into use, ITW Rippey recommends the following procedures:

• Remove the PVA brush and core assembly from the tool, do not let PVA dry out
• Thoroughly rinse out the PVA brush with DI water
• Place the PVA brush only, (or brush and core depending upon customer preference), in a solution of .15%-.25% NH4OH, (by weight in DI water)
• Keep brushes and solution in a covered container
• When needed, remove the brushes and thoroughly rinse in DI water
• The PVA brushes are now ready to install back onto the tool