SO-FLEX is a softening agent that will lower the cured durometer of a variety of Smooth-On flexible polyurethane products. The charts below indicate the effect SO-FLEX has on fully cured (7 days) PMC -121/50 and PMC -744 when added as a percentage of the total mix. SO-FLEX can also be added to Vytaflex 10 to create a urethane gel" type material.
Use SO-FLEX by weight: For best results, you should use an accurate scale to properly use SO-FLEX with PMC -121/50, PMC -744, Vytaflex or any other flexible Smooth-On polyurethane product. SO-FLEX should be weighed and thoroughly mixed (at least one minute) with the appropriate amount of Part B before combining with Part A.
Technical bulletin So-Flex
Safety 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(73 F / 23 C). 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.