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URE-FIL® Fillers are easily dispersed in most Smooth-On resins and rubbers to attain different finishes, properties and effects. Filler can act as an extender - lowering the cost of each casting, can provide casting effects, or can thicken a material, depending on formulation.
URE-FIL® 3 is a ceramic filler that is speckled grey in color and will give plastic castings a ceramic or porcelain-like finish.
URE-FIL® 5 is a lightweight 'pecan flour' style filler that is your best choice for achieving a wood effect in casting plastics.
URE-FIL® 7 provides dimensional stability, economy & improved flame resistance to liquid plastics.
URE-FIL® 9 is a fumed-silica based thickening agent primarily used with liquid urethane rubbers.
URE-FIL® 11 is a fiber-based filler that can be added to Smooth-On urethane and silicone rubbers, urethane plastics and epoxies to thicken for brush-on applications.
URE-FIL® 15 micro-balloons that can be added to Smooth-On urethane plastics and epoxies to create very light weight castings.