Unit Size Net Weight Pint 1 lb Gallon 9 lb Five Gallon 45 lb SO-FLEX II is a phthalate free softening agent that will lower the cured durometer of a variety of Smooth-On flexible polyurethane products. Refer to technical bulletin for effect SO-FLEX II has on fully cured (7 days) PMC 121/50, Vytaflex 30 and Reoflex 20 urethane rubbers when added as a percentage of the total mix. Properties InstructionsSAFETY Use in a properly ventilated area ("room size" ventilation). Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. Store and use products in a warm environment(73F / 23C). This product has a limited shelf life and should be used as soon as possible. Wear gloves and eye protection to minimize risk of contamination.MEASURING & MIXINGUse SO-FLEX II by weight: For best results, you should use an accurate scale to properly use SO-FLEX II with PMC 121/50. SO-FLEX II should be weighed and thoroughly mixed (at least one minute) with the appropriate amount of Part B before combining with Part A.Documentation Technical Bulletin Special Order Items PRODUCT ADVISORY: The products listed below are currently SPECIAL ORDER items and require pre order. Lead times may vary - For more information please contact our staff.801922 - SO-FLEX II Softener - Five Gallon