---
product_id: 1871286
title: "Alja-Safe™ Lifecasting Alginate Molding Powder, 3-lb Box"
brand: "smooth-on"
price: "A$149"
currency: AUD
in_stock: true
reviews_count: 8
category: "Smooth On"
url: https://www.desertcart.com.au/products/1871286-alja-safe-lifecasting-alginate-molding-powder-3-lb-box
store_origin: AU
region: Australia
---

# 8-min fast cure high-detail molding skin-safe alginate Alja-Safe™ Lifecasting Alginate Molding Powder, 3-lb Box

**Brand:** smooth-on
**Price:** A$149
**Availability:** ✅ In Stock

## Summary

> 🖌️ Mold your masterpiece before it’s gone!

## Quick Answers

- **What is this?** Alja-Safe™ Lifecasting Alginate Molding Powder, 3-lb Box by smooth-on
- **How much does it cost?** A$149 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/1871286-alja-safe-lifecasting-alginate-molding-powder-3-lb-box)

## 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

- • **Certified Skin-Safe Formula:** Create body part molds worry-free with a non-toxic, gentle alginate.
- • **Ultra-Realistic Detail Capture:** From hands to faces, achieve museum-quality impressions every time.
- • **Versatile Casting Compatibility:** Pour plaster, resin, gypsum & more for endless creative possibilities.
- • **Effortless Precision in 8 Minutes:** Mix 1:1 with warm water and get a perfect mold fast—no waiting, no fuss.
- • **No Crystalline Silica, No Compromise:** Safe for you and your workspace—professional-grade without the hazards.

## Overview

Smooth-On Alja-Safe™ is a 3-lb box of certified skin-safe alginate powder designed for quick, single-use lifecasting molds. It mixes 1:1 with warm water, curing in about 8 minutes to capture ultra-fine detail of body parts like hands and faces. Compatible with plaster, resin, and gypsum, it offers a safe, non-silica alternative favored by professional artists and hobbyists alike.

## Description

Shop Smooth-On at the desertcart Arts, Crafts & Sewing store. Free Shipping on eligible items. Save on everyday low prices.

Review: Ignore the nay sayers. This product is easy and fun to use. - Great product for making molds of any thing you want. Ive used it for making molds of different lure designs and they have all come out great. I see several reviews saying the product is crap and others saying do not buy it. All I can say is that your doing it WRONG! If you use warm water, you already screwed up. The water at 80 degrees actually feels slightly cold to the touch. The warmer the water, the faster it sets up. 50/50 mixing ratio is a bit off for my liking but that's my opinion. I like to add an extra ounce or so of water to thin it down a bit which produces excellent details and pouring ability. Ive done several molds from this package including hands, feet and a face and still have some left over to play with. The trick is to find a water proof container just slightly larger than what your casting so you use less product. I use old lures melted down in an old microwave for my lures. This product hold up very well. If you cast a larger piece, you will see steaming and bubbling of the melted lures but in the end, when its cool, you still get excellent results and very few bubbles. Please, do not be put off by the negative reviews. Not every one can read and comprehend the instructions. Some people do not even try something small to see how the product works before trying the actual project. Ive yet to screw up one single project.
Review: Great product! I will buy again - Product was delivered on time and worked as promised. I used this along with plaster bandages (ACTIVA Rigid Wrap Plaster Cloth) to make a half cast of a models face. The half cast came out perfect. The detail it captures is amazing. As a professional special makeup effects artist, I am very pleased with this product. I've never been disappointed by any Smooth-on products. Note when using this product: -The warmer the water is the faster it will set up. I like to used cold water to give me more working time. -You need to work quickly, it goes from a creamy texture to a solid before you know it. -Cover the model's eyebrows (or any facial hair they want to keep) with vaseline. It will take your hair out. -If used on the head, cover the model's head with a bald cap (it will take your hair out) -After a few hours the alginate will start to shrink and dry out, so be ready to more whatever plaster or resin in the mold as soon as possible. -Shrinkage can be fun! I got the alginate off the plaster in one piece (yeah! that doesn't always happen) and saved it by placing some very wet paper towels in the alginate so it would shrink without cracking. I checked on it every day. After a few days the face impression was about the size of my hand and slightly warped. I poured plaster into the smaller head mold. The result is a plaster cast of a slightly "S" shaped, shrunken head. It's just a fun, weird conversation piece and it totally freaked my model out (so it was worth the time). If you have extra time and extra plaster.... and you like weird stuff. :)

## Features

- Certified Skin-Safe Alginate - Perfect for Making Single-Use Molds of body parts (hands, feet, face, etc.)
- Easy to Use - Simply Mix 1 Part AljaSafe Powder with 1 Part Warm Water (80° F/27°C) (by volume) to make a mold - cures in about 8 minutes – follow instructional videos!
- Pour plaster, resin, gypsum & more into Alja-Safe Molds to make detail-accurate castings
- NO Crystalline Silica!
- NOTE: Not suitable for Dental Applications – Always Follow All Warnings & Instructions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000KVSU60 |
| Best Sellers Rank | #17,482 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #182 in Sculpture Molding & Casting Products |
| Brand | Smooth-On |
| Color | Pink |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,187) |
| Date First Available | November 21, 2006 |
| Full Cure Time | 8 Minutes |
| Is Discontinued By Manufacturer | No |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Volume | 3 Liters |
| Item Weight | 3 pounds |
| Item model number | SOaljasafe3lb |
| Manufacturer | Smooth-On, Inc. |
| Material | Plaster |
| Package Information | Box |
| Product Dimensions | 8 x 8 x 8 inches |
| UPC | 751635296602 751635837621 |
| Unit Count | 48.0 Ounce |
| Viscosity | Variable |
| Viscosity Level | Low to Medium |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Color:** Pink
- **Item Form:** Powder
- **Item Package Quantity:** 1
- **Material:** Plaster

## Images

![Alja-Safe™ Lifecasting Alginate Molding Powder, 3-lb Box - Image 1](https://m.media-amazon.com/images/I/61D4TYbPaAL.jpg)

## Questions & Answers

**Q: Is it safe to use for dental impressions for forensic analysis in a high school lab?**
A: I do not believe that this product is a dental grade alginate which is what you will need. Try this http://www.amazon.com/Hollywood-Impressions-Molding-Powder-Alginate/dp/B000KI6W5Y/ref=sr_1_1?ie=UTF8&qid=1398300899&sr=8-1&keywords=dental+impression+kit

**Q: How many whole adult hand casts could you make with one box?**
A: Most probably three or four possibly more, depending upon how closely the casting container is made and how far up the arm the casting is to be made. You have to be a bit careful of having the alginate too thin particularly at the edges where you transition from the casting to air. it can and will tear if it is too thin.  You might be able to make a dozen or so casting if you simply paint the alginate onto The hand and then reinforce the cast with plaster of paris. I've heard of this method, but, have not tried it.

**Q: I want to make a mold of 16 different 4 year old's hands.  How much of this stuff will I need if I'm using 1/2 gallon containers for each one?**
A: Well if your using 1/2 gallon containers. Your mixture rate is 1:1 . that is 1 cup alja safe 1 cup water. So you need to probably use for each cast 3 to 4 cups alja safe and 3 to 4 cups water. 16 casts you would probably need about 9 pounds of alja safe.

**Q: How much heat alija safe can tolerate when casting?**
A: If casting material reaches the boiling point of water, the moisture in the Alja Safe will convert to steam, causing bubbles in your casting.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ignore the nay sayers. This product is easy and fun to use.
*by I***U on June 4, 2017*

Great product for making molds of any thing you want. Ive used it for making molds of different lure designs and they have all come out great. I see several reviews saying the product is crap and others saying do not buy it. All I can say is that your doing it WRONG! If you use warm water, you already screwed up. The water at 80 degrees actually feels slightly cold to the touch. The warmer the water, the faster it sets up. 50/50 mixing ratio is a bit off for my liking but that's my opinion. I like to add an extra ounce or so of water to thin it down a bit which produces excellent details and pouring ability. Ive done several molds from this package including hands, feet and a face and still have some left over to play with. The trick is to find a water proof container just slightly larger than what your casting so you use less product. I use old lures melted down in an old microwave for my lures. This product hold up very well. If you cast a larger piece, you will see steaming and bubbling of the melted lures but in the end, when its cool, you still get excellent results and very few bubbles. Please, do not be put off by the negative reviews. Not every one can read and comprehend the instructions. Some people do not even try something small to see how the product works before trying the actual project. Ive yet to screw up one single project.

### ⭐⭐⭐⭐⭐ Great product! I will buy again
*by A***H on April 14, 2016*

Product was delivered on time and worked as promised. I used this along with plaster bandages (ACTIVA Rigid Wrap Plaster Cloth) to make a half cast of a models face. The half cast came out perfect. The detail it captures is amazing. As a professional special makeup effects artist, I am very pleased with this product. I've never been disappointed by any Smooth-on products. Note when using this product: -The warmer the water is the faster it will set up. I like to used cold water to give me more working time. -You need to work quickly, it goes from a creamy texture to a solid before you know it. -Cover the model's eyebrows (or any facial hair they want to keep) with vaseline. It will take your hair out. -If used on the head, cover the model's head with a bald cap (it will take your hair out) -After a few hours the alginate will start to shrink and dry out, so be ready to more whatever plaster or resin in the mold as soon as possible. -Shrinkage can be fun! I got the alginate off the plaster in one piece (yeah! that doesn't always happen) and saved it by placing some very wet paper towels in the alginate so it would shrink without cracking. I checked on it every day. After a few days the face impression was about the size of my hand and slightly warped. I poured plaster into the smaller head mold. The result is a plaster cast of a slightly "S" shaped, shrunken head. It's just a fun, weird conversation piece and it totally freaked my model out (so it was worth the time). If you have extra time and extra plaster.... and you like weird stuff. :)

### ⭐⭐⭐⭐⭐ Great for beginners and intermediates...
*by T***R on August 15, 2017*

Update: I have now used this product for over a year and it still works great. I'm on to cold number 2 and I have made over a dozen casting from the one bag. Again it will depend on how buig your projects are as mine are infant's feet and hands. I love it as much as when I first bought it. I wanted to make body castings of our newborn baby son's feet as he grows the first year and this has worked well! The one bit of advice I would recommend is making sure to dip the body part and pull it out and then put it back in to get rid of air bubbles. Also when filling with plaster pour slowly and rotate it around to fill all the little nooks and crannies before completely filling. The instructions were very informative and helpful in guiding me in obtaining good results. There is enough material to do several pours. I have done 3 babies feel and 1 set of clasped hands and one small test mix to test at the beginning using my thumb and still have enough for several more baby feet! I keep it twisted tied closed and in the box in a dry cool place and haven't had any issues over the past 12 months.

## Frequently Bought Together

- Smooth-On Alja-Safe™ Lifecasting Alginate Molding Powder, 3-lb Box
- Smooth-On Silc Pig™ Color Pigments for Silicone, 9-Pack Sampler
- Smooth-On Ecoflex™ 00-30 Super-Soft, Platinum Cure Silicone Rubber - Pint Unit

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-21*