FlexFoam-iT!™ Series
Castable Flexible Urethane Flex Foam
FlexFoam-iT!™ expanding flexible foams are easy to use and durable. They are lightweight, versatile and most are available in easy to measure mix ratios. They can be used for padding/cushion material, gasket material, or to make props and special effects. Vibrant colors can be achieved by adding color pigments.
KEEP OUT OF REACH OF CHILDREN
HIGHLIGHTS
Wide Selection
Wide Selection
FlexFoam-iT! ® flexible polyurethane foams come in a broad selection of formulations from a 3 pound to a 25 pound density and many others in between. This means you can choose between a high 15 times expansion rate to as low as 2 times expansion to meet your project needs.
Wide Selection
High Expansion
Low Density
FlexFoam-iT!™ IV and 15
TUFF STUFF
FlexFoam-iT!™ IV and 15
TUFF STUFF
FlexFoam‑iT!™ IV and 15 TUFF STUFF have a relatively high tear strength for a low-density foam. They are also stiffer and slightly harder to compress vs. other FlexFoam-iT!™ products.
Gram Scale Required
High Tear Strength
Lightweight
FlexFoam-iT!™ 6 and VIII
Pillow Soft
FlexFoam-iT!™ 6 and VIII
Pillow Soft
These foams are very soft and are used for padding/cushion, specialty bed, and orthopedic pillow material applications. Cured foam has very good physical and rebound properties.
No Scale Necessary
FlexFoam-iT!™ 7 FR
Flame Rated FMVSS-302 Spec
FlexFoam-iT!™ 7 FR
Flame Rated FMVSS-302 Spec
This Federal Motor Vehicle Safety Standard for Flammability of Interior Materials applies to passenger cars, trucks, buses, etc. for making seat cushions, seat backs, arm rests, trim panels, and more.
FlexFoam‑iT!™ 7 FR is widely used to cast custom and "out of production" foam parts.
Flame Rated
One to One by Volume
No Scale Necessary
FlexFoam-iT!™ X
FlexFoam-iT!™ X
Easy to use, 10 pound foam perfect for creating props and incredibly realistic food displays.
One to One by Volume
No Scale Necessary
FlexFoam-iT!™ 14 and 17
Self Skinning
FlexFoam-iT!™ 14 and 17
Self Skinning
With the right amount of back pressure applied during casting, the surface finish of the cured foam approaches that of a urethane elastomer. The foam is easily colored with SO-Strong™ color tints, UVO™ or Ignite™ fluorescent pigments and is compatible with Cast Magic™ powders for creating a variety of finish effects.
No Scale Necessary
FlexFoam-iT!™ 23
Flame Rated
FlexFoam-iT!™ 23
Flame Rated
This 23 pound foam certifies to UL-94 HB Flame Specification, the Standard for Safety of Flammability of Materials for Parts in Devices and Appliances.
Flame Rated
Gram Scale Required
FlexFoam-iT!™ 25
FlexFoam-iT!™ 25
This 25 pound foam is perfect for reproducing smaller details and surface texture versus other foams and is an easy way to reproduce multiple, safe to use, prop weapons for stage and screen.
Gram Scale Required
Technical and Buying Information
| Select a Product Below | Foam Density | Expansion (approximate) |
|---|---|---|
| › FlexFoam-iT!™ III | 3 lb/ft³ | 15 times |
| › FlexFoam-iT!™ IV Tuff Stuff | 4 lb/ft³ | 13 times |
| › FlexFoam-iT!™ V | 5 lb/ft³ | 11 times |
| › FlexFoam-iT!™ 6 Pillow Soft | 6 lb/ft³ | 10 times |
| › FlexFoam-iT!™ 7 FR | 7 lb/ft³ | 8 times |
| › FlexFoam-iT!™ VIII Pillow Soft | 8 lb/ft³ | 7 times |
| › FlexFoam-iT!™ X | 10 lb/ft³ | 6 times |
| › FlexFoam-iT!™ 14 | 14 lb/ft³ | 4 times |
| › FlexFoam-iT!™ 15 Tuff Stuff SLOW | 15 lb/ft³ | 4 times |
| › FlexFoam-iT!™ 17 | 17 lb/ft³ | 3.5 times |
| › FlexFoam-iT!™ 23 FR | 23 lb/ft³ | 2 times |
| › FlexFoam-iT!™ 25 | 25 lb/ft³ | 2 times |
VIDEOS and GALLERIES
Step-by-Step How-To Articles
video
How To Improve The Surface Finish Of Foam Castings Using Back Pressure
Learn how back pressure results in a tighter cell structure and better foam castings
video
How To Make a Custom Foam Storage Insert
A Custom Made Foam Insert for Electronics or Other Delicate Equipment
video
Cosplay Tutorial: How To Cast a Flexible Foam Hellboy Fist
Smooth-On fan Jon N. uses FlexFoam-iT! X to make a durable, lightweight "Hellboy" inspired fist for cosplay.
How to Make Prop Swords out of Flexible Foam
Learn how production companies make prop weapons for use on stage or screen.
video
How To Make Flexible Foam Prop Cinder Blocks
The scene in Spider Man 3 called for the heroine, Mary Jane, to again be in peril...
video
How To Make a Flexible Foam Prop Concrete Block
This tutorial shows how Flex Foam-iT! X can be cast to create a realistic cinder block prop.
How To Caste a Prop Engine Block Using FlexFoam® iT! 17
The surface finish of the cured Flex Foam-iT! 17 foam approaches that of a urethane elastomer.
video
How To Mold and Cast Foam Props - Via Tested.com
Via Tested - How to make simple silicone molds to cast and paint foam replicas of props like shop tools
video
How To Make a Custom Foam Seat Using Pourable Urethane Foam
Pourable polyurethane foam materials are used to create a unique piece of custom furniture.
video
How To Make Foam Squishies Using FlexFoam-iT! III Liquid Expanding Foam
How to safely make a foam squishy using Smooth-On FlexFoam-iT! III liquid expanding urethane foam.
video
How To Repair a Flat Tire Using FlexFoam-iT! 25
See How You Can Use FlexFoam-iT! Foam To Permanently Repair a Tire
video
How To Repair an Archery Target Using FlexFoam-iT! 15
In this tutorial video, FlexFoam-iT! 15 urethane foam is used to repair an archery target.
video
How To Make Cosplay Chest Armor Using FlexFoam-iT!™ 15 SLOW Urethane Foam
Learn how you can use FlexFoam-iT!™ 15 SLOW to create lightweight, very strong chest armor.
How To Repair a Tractor Seat Using FlexFoam-iT!™ 15
In this tutorial we show how FlexFoam-iT! 15 can be used to repair a damaged John Deere® tractor seat.
video
How To Make a Foam Prop Sword Using a Silicone 2 Part Mold
How a 3D printed master is used to pour a silicone mold for a prop sword
What Have Other People Done With These Products?
Tripping The Light Foam-Tastic
Prism artisans have perfected a technique for making incredibly detailed food items
Screamline Studios Makes Props To Die For
Operating out of Mentor Ohio since 1996, Screamline Studios has provided professional design, construction, and coordination for primarily the haunted attraction industry.
Universal Designs Pushes The Envelope Of Costuming
UD Replicas makes amazing costumes using Smooth-On materials.
The Sole of Red Wings Giant Work Boot: Size 638D
The Red Wing Shoe Company was built on America's great promise at the end of the 19th century that if one worked hard enough, one could achieve anything.
A Pillow for the Masses
AC Worx Orthopedic, LLC of Crookston, Minnesota develops a concept for an orthopedic pillow.