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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Friday, Nov 27
At a glance
- Condition
- New
- Size
- Pint Unit
- Model
- SOFF3
- Weight
- 2.5 lb
- Color
- Clear
- Material
- Polyurethane
- Item Form
- Liquid
Features 5
- Premium Flexible Foam - High-grade water-blown liquid expanding foams for special effects, industrial, & arts & crafts projects.
- Versatile Application - Ideal pourable foam for making props, industrial gaskets, custom foam padding, etc.
- Mix Ratio of 1:2 By Volume - 2 Part Foam Kit - Cure Time of 2 hours - Cures to a solid, flexible foam.
- FlexFoam-iT! III expanding foam mix has the lowest density & expands the most in the FlexFoam-iT! Series.
- Perform a small-scale test of your project materials to determine suitability and compatibility. Refer to the technical bulletin for more information - available on our website.
Description
- Cures to a soft white foam in 2 hours
- Suitable for propmaking and special effects
- 15 times expansion
- 1:2 by volume mix ratio
- WARNING: Keep Out of Reach of Children. Do not get into eyes or on skin. Do not take internally. Do not breathe fumes. Use only with adequate ventilation. Wear vinyl or nitrile gloves and eye protection when handling this product. Review the technical bulletin prior to use for safe handling instruction.
WARNING: Keep Out of Reach of Children. Do not get into eyes or on skin. Do not take internally. Do not breathe fumes. Use only with adequate ventilation. Wear vinyl or nitrile gloves and eye protection when handling this product. Review the technical bulletin prior to use for safe handling instruction. 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.
Specs 23
| Brand | Smooth-On |
|---|---|
| Specific Uses For Product | Craft |
| Material | Polyurethane |
| Item Form | Liquid |
| Special Feature | Strong |
| Other Special Features of the Product | Strong |
| Container Type | Pint |
| Viscosity Level | Medium |
| Full Cure Time | 2 hours |
| Water Resistance Level | Not Water Resistant |
| Compatible Material | Foam |
| Item Package Quantity | 1 |
| Volume | 473.18 ml |
| Material Type | Polyurethane |
| Color | Clear |
| Brand Name | Smooth-On |
| Model | SOFF3 |
| Unit Count | 44.16 Ounce |
| UPC | 751635446410 |
| Number of Pieces | 2 |
| Manufacturer | Smooth-On, Inc. |
| Item Weight | 2.5 pounds |
| Part Number | 44644 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Nov 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Amazing
Size: Pint Unit
What I liked is this product did exactly what I was hoping it would do. What I didn't like was that you have to work very fast because of how fast it sets up. It just means you have to be very organized before you mix the product. I used this product on a vintage car steering wheel horn pad that the original foam had split and separated from the horn pads structure.
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Reviewed in the United States on February 4, 2024 by Doug Lindebaum
YAY SQUISHIES!!!!!!!!
Size: Pint Unit
So my 9 yr old is all about squishies. This product was very very easy to use. However I will warn u. Def wear gloves. And don't let it get on counters, sinks etc. very hard to remove. Also I saw in other reviews to get quick release. I didn't get that and it was very hard to get out of silicone molds. Also when we did it in a plastic container or cup it didn't stick as bad and bottom came out much smoother then silicone molds. The only thing I did have trouble with was the measuring part. Didn't understand the measurements that came with it. So it was a lot of trial and error. Also when we closed containers the B container got stuck like crazy glue stuck. So it's very fun craft to do with ur kids. Just needs better instructions on how to use. I will definitely buy again
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Reviewed in the United States on December 29, 2016 by Annmarie
Making squishys
Size: Pint Unit
Works perfect for squishys my daughter used molds and made them it was alot of fun I help her i recommend older help cuz it can get messy
Reviewed in the United States on August 10, 2025 by Sheila Hazelwood
Very fun
Size: Pint Unit
This is a lot of fun to use to make squishies with the kids! You have to make sure that the room is pretty warm though to make it grow to it’s full putential. Use something thick (I used a vinyl tablecloth) that can be destroyed to make this on in case of drips. You MUST use silicone molds unless you buy a separate solution to keep it from sticking to the molds and ruining your project. Molds that are the size of a baseball or softball work vest as small molds are hard to make without it puffing up too big. Very large molds are hard as the consistency of the final squishy is a lot more compact/harder than what it should be. We did a lot of experimenting.
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Reviewed in the United States on November 19, 2019 by Jaime J. Weenink
Great for making squishies
Size: Pint Unit
Buying squishies and repainting them or buying unpainted ones and painting them yourself is cool, but making your own is even better. I use silicone baking molds, candy molds and ice molds to cast mine and have had great results. This starter package will make a LOT of squishies. It is easy and the company's web site has great videos explaining everything. BE SURE to pick up lots of paint stirring sticks at some place that sells house paint because you will need them. This is great stuff an easy to use. Just know that once you mix the two parts (A & B) together you have have 30 seconds of so to get it in the molds. This is very different from acrylic casting which has a much longer pot life.
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Reviewed in the United States on December 18, 2018 by D W
Please read!!!!!!
Size: Pint Unit
This is not for the faint of heart. It is toxic and very very unforgiving. Please watch YouTube videos and read their site for help. It’s insanely sticky, so use silicon forms where you’re pouring. Measure!!! Use a scale, it makes it so much easier. 1A:2B or .575 difference. 10 grams A = 17.3g B. This is insanely important. Very unforgiving. Yellow bottle is the hardener…. Too much yellow it’s too hard or doesn’t expand. Too much blue bottle it doesn’t stay expanded and looks weird. Mix until 35 seconds and your shoulder is on fire. When you combine the chemicals after measuring exactly, mix immediately and use a timer. Mix until your shoulder burns. Really really really mix. Minimum 35 seconds, then pour. Lastly, it doesn’t like cold. Has to be 72+ or it doesn’t fully expand. This is all listed on the website and 100% accurate. Measure - mix - warm - remove after 25 min. It’s a great product and has a lot of uses if you can do the above.
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Reviewed in the United States on October 15, 2021 by Jacob Johnson
Garbage, no 15x not uniform results, waste of time and money
Size: Pint Unit
I've tried multiple times now, and always end up with maybe 4x expansion, voids, a skin that has separated from the core foam. This occurs every time, regardless of mold, technique, temperature etc. I've bought this kit 6 times for 6 different projects, and it's not worked any of the times. Not getting any more of my money that's for sure.
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Reviewed in the United States on February 19, 2023 by Thomas
The directions provided are easy to understand and comprehensive
Size: Pint Unit
We purchased this to make squishies. We have been using the silicone cupcake/donut molds. The directions provided are easy to understand and comprehensive. Temperature does seem to be a factor when using these. My house was a bit on the cold side one day when we poured this. The squishies collapsed. The directions do mention that you should be over 70F when using to avoid this. It really does matter. You don't have long to work with this. If you are making squishies, I would recommend working in small batches (1TBSP A + 2 TBSP B). Yes, it does swell to 15 times original volume, so a little bit goes a long way.
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Reviewed in the United States on January 6, 2017 by Pamela Applegate-frasch