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๐๏ธ Mold your masterpiece, safely and swiftly!
Smooth-On Alja-Safeโข is a 3-lb box of certified skin-safe alginate molding powder designed for quick, single-use lifecasting molds. It cures in 8 minutes, captures fine detail, and is compatible with plaster, resin, and gypsum. Free from harmful crystalline silica, it offers a safe, reliable solution for professional-quality body part molds.






| Asin | B000KVSU60 |
| Best Sellers Rank | #35,073 in Arts, Crafts & Sewing (See Top 100 in Arts, Crafts & Sewing) #299 in Sculpture Molding & Casting Products |
| Brand Name | Smooth-On |
| Color | Pink |
| Compatible Material | Plaster, Gypsum, Resin |
| Container Type | Box |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,193) 4.6 out of 5 stars |
| Full Cure Time | 8 minutes |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Weight | 3 pounds |
| Manufacturer | Smooth-On, Inc. |
| Material Type | Alginate |
| Model | SOaljasafe3lb |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Non Toxic |
| Part Number | 75163586060 |
| Specific Uses For Product | Casting |
| Unit Count | 48 Ounce |
| Upc | 751635296602 751635837621 |
| Viscosity Level | Low to Medium |
| Volume | 3 liters |
| Water Resistance Level | Not Water Resistant |
User
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.
User
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. :)
User
Great for beginners and intermediates...
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.
User
Fantastic! But very expensive.
I am extremely impressed with this product. It meticulously captures every detail, and within eight minutes, it is prepared for silicone application.My primary concern, however, is the pricing. It is quite expensive. For a product primarily intended for single-use applications, the cost seems disproportionately high. While it is possible to reuse it on the same day with careful removal of the silicone, significant shrinkage occurs unless refrigerated.I would readily purchase multiple units, but at $50 per box, this is not feasible.
User
Love It!
Very easy to use alginate! Included a reference chart for how much to use for each part of the body which was extremely helpful for beginners.Cure time is fast, but I slowed mine down by using slightly cold, filtered water. Picks up every tiny detail perfectly.Bought a few boxes to take multiple castings of a pregnant belly and they turned out great!As mentioned before, the chart is extremely helpful, but it doesnโt include any references for pregnant bellies, but stated a full torso would only take 1.5lbs. Since I bought extra, I decided to try 3lbs just to be safe since I was dealing with a larger belly. What a waste! Not only was it waaayyyy too much, it was too heavy & the mold didnโt turn out right due to the excess weight.Tried again only using 1.5lbs and was a perfect amount for doing a cast with both parents hands on the belly. The mother wasnโt too big compared to most pregnant women so when it came time to just do just the belly I only used a pound which was plenty.Iโm very pleased with this product and will now be my go to product for future projects. Easy to use and clean up.
User
Wonderful casting material.
We purchased this after our seven year old passed away to try and immortalize his hands before burial. Shipping was quick and came right on time. The instructions were a little vague on things like "add all of the powder at once to all of the liquid" (it actually works best if you start with all of the powder in the container and pull off to one side and then add all of the liquid to it) or the fact that you cannot add more water once you start mixing, but even with our little slips, it still turned out an incredible cast of my baby's hands that show such incredible detail as fingerprints and the skin details on the backs of his hands when molded with plaster.Also not noted on the listing, but you only have about 4 hours to get the mold poured after casting, so if you want to use any specialty resins, you need to order them at the same time (like the smooth on 300Q would be perfect) so that you can make multiple castings.We just used plaster because it was all we had available and couldn't wait for shipping of another product, and it worked beautifully. Really really stunning results.
User
Oh my god what a great product - Used for lifecasting
I've only tried one other type, and it was dental. I bought it because it was cheapest, and I was a teenager. It was scented and hurt the models eyes. THIS however, is a wonderful product. There is so much more than I need. Keep in mind, it says it's a time sensitive material, so don't stick it in the sun and keep it open or I'm sure it would spoil. The only difference with my other products alginate was that it kind of set faster and weirder. So I'm sure this would still be kind of okay if you waited a long time to use it. Just, as soon as possible worked for me very well, and if I needed more, I'd get this exact product.
User
Large amount for a good price
You get a pretty large bag full of life, casting molding, which is awesome. It is a bit pricey, but a lot cheaper than 99% of other reseller out there definitely worth the price plus you get to create memories of your kids, little hands and feet.
User
Shelf life of product not specified
Great product and so easy to use. Shipping time was okay. I ordered it than saw it for half the price a week later from the same company. Grrrrr. It is an excellent product even for newbies complete with full instructions website links etc. I will use this brand exclusively in the future.
User
Awesome stuff
Worked great! Exactly what I was expecting.
User
very good quality product
i like it and for sure if i need again i will order from same place.
User
Need to have water prepared ahead of time!
It works really well but you must work quickly! Small amounts are easier to work with than larger amounts so be prepared to practice before casting multiple hands.
User
Good product
Good product !
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