---
product_id: 12536446
title: "Smooth-On Free Form AIR - Mix & Apply-By-Hand Epoxy Dough (Trial Unit)"
brand: "smooth-on"
price: "$111.75"
currency: USD
in_stock: true
reviews_count: 12
category: "Smooth On"
url: https://www.desertcart.us/products/12536446-smooth-on-free-form-air-mix-and-apply-by-hand
store_origin: US
region: United States of America
---

# Can be sanded, drilled & CNC machined 24-hour full cure time Extremely lightweight (floats on water) Smooth-On Free Form AIR - Mix & Apply-By-Hand Epoxy Dough (Trial Unit)

**Brand:** smooth-on
**Price:** $111.75
**Availability:** ✅ In Stock

## Summary

> ⚡ Float on innovation with Free Form AIR — the epoxy putty that’s light, tough, and ready to transform your craft!

## Quick Answers

- **What is this?** Smooth-On Free Form AIR - Mix & Apply-By-Hand Epoxy Dough (Trial Unit) by smooth-on
- **How much does it cost?** $111.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12536446-smooth-on-free-form-air-mix-and-apply-by-hand)

## Best For

- smooth-on enthusiasts

## Why This Product

- Trusted smooth-on brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight Strength:** Experience durable epoxy that’s so light, it literally floats—perfect for intricate art and industrial projects.
- • **Precision Crafting Ready:** Shape, sand, drill, and machine with ease—Free Form AIR adapts to your creative and professional needs.
- • **Custom Color Compatibility:** Mix with SO-Strong or Ignite colorants to match your unique style or project palette effortlessly.
- • **Low-Odor, Low-Shrink Formula:** Work comfortably with minimal fumes and enjoy a flawless finish with virtually no shrinkage.
- • **Composite Lamination Simplified:** Save time and labor by laminating Free Form AIR between epoxy and fiber layers for lightweight, strong parts.

## Overview

Free Form AIR by Smooth-On is an ultra-lightweight, low-odor epoxy putty designed for industrial and artistic applications. It cures in 24 hours to a hard, durable finish that can be sanded, drilled, painted, and CNC machined. Compatible with colorants and laminating epoxies, it offers versatility for mold making, cosplay, props, and composite tooling, making it a must-have for professionals seeking lightweight strength and precision.

## Description

Free Form Air from Smooth-on is an extremey lightweight epoxy putty suitable fro a variety of industrial and art-related applications. This low-odor, low shrinkage putty offers a long working time and cures overnight at room temperature to a hard, rigid epoxy. Use for mold making, cosplay, props and more, Free Form Air is so lightweight it will float in water. Free Form Air can be painted, sanded, shaped, and drilled. It can also be colored with UVO or Ignite colorants. Mix by hand with a 1A:1B by volume mix ratio.

Review: So glad I discovered this product! - This stuff is amazing! I usually use Apoxie Scuplt, but needed something lighter weight for my current project. This fit the bill perfectly. It takes a bit longer to set up for carving details into it than Apoxie, but once I got the hang of it, it’s pretty similar. It cures just as durable, but remarkably lightweight!
Review: Works well with neoprene gloves , or you just have to wash your hands often - The package came ahead of schedule the box undamaged and the product is good condition I am using this rather than apoxy sculpt as the smooth texture of Free Form Air allows me to work quickly and efficiently, when dry it is tough and hard . Paints well and takes on a clear coat of apoxi

## Features

- Extremely lightweight epoxy putty suitable for an infinite variety of industrial and art-related applications
- Low-odor, low shrinkage putty that is unique, inexpensive and easy to use
- Can be sanded, shaped, drilled, tapped and CNC machined/routered. It will readily accept any paint. Free Form can also be color pigmented with SO-Strong or Ignite colorants.
- Epoxy Laminating; Laminate Free Form AIR putty in between layers of EpoxAmite Laminating Epoxy and fiberglass cloth, carbon or other fiber for making lightweight composite parts. Eliminates the need to make multiple layers of laminating with liquid epoxy; saves time and labor.
- Epoxy Tooling Applications – use as a filleting material. Also good for jig and fixture construction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IEKMF9C |
| Best Sellers Rank | #67,032 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #116 in Sculpture Modeling Compounds |
| Brand | Smooth-On |
| Brand Name | Smooth-On |
| Color | Grey |
| Compatible Material | Fibreglass |
| Container Type | Pail |
| Customer Reviews | 4.5 out of 5 stars 250 Reviews |
| Full Cure Time | 24 hours |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Weight | 1.8 pounds |
| Manufacturer | Smooth-On, Inc. |
| Material | Epoxy Putty |
| Material Type | Epoxy Putty |
| Model | MFSOFreeFormAir |
| Other Special Features of the Product | Strong |
| Part Number | FreeFormAir |
| Special Feature | Strong |
| Specific Uses For Product | Mold Making, Props, Cosplay |
| Tensile Strength | 12 megapascals |
| UPC | 751635045415 |
| Unit Count | 16 Ounce |
| Viscosity Level | High |
| Volume | 2 liters |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Item Form:** Putty
- **Material:** Epoxy Putty
- **Special Feature:** Strong
- **Specific Uses For Product:** Mold Making, Props, Cosplay

## Images

![Smooth-On Free Form AIR - Mix & Apply-By-Hand Epoxy Dough (Trial Unit) - Image 1](https://m.media-amazon.com/images/I/61rF1YAi7wL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ So glad I discovered this product!
*by W***E on June 16, 2026*

This stuff is amazing! I usually use Apoxie Scuplt, but needed something lighter weight for my current project. This fit the bill perfectly. It takes a bit longer to set up for carving details into it than Apoxie, but once I got the hang of it, it’s pretty similar. It cures just as durable, but remarkably lightweight!

### ⭐⭐⭐⭐⭐ Works well with neoprene gloves , or you just have to wash your hands often
*by I***4 on July 1, 2026*

The package came ahead of schedule the box undamaged and the product is good condition I am using this rather than apoxy sculpt as the smooth texture of Free Form Air allows me to work quickly and efficiently, when dry it is tough and hard . Paints well and takes on a clear coat of apoxi

### ⭐⭐⭐⭐⭐ Expensive but worth it.
*by R***X on June 14, 2025*

Mixes easily. Sculptable when dry. Paintable. Lightweight.

## Frequently Bought Together

- Smooth-On Free Form Air Epoxy Putty 2 Lbs
- Smooth Thi-Vex Silicone Thickening Agent - 1 oz. Bottle
- Smooth-On Rebound 25 - Brushable Platinum Silicone Rubber - Gallon Unit

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-18*