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🧬 Unlock the science of slime—perfect stretch, every squeeze!
Ultimate Science Borax Slime Activator is a ready-to-use 4% borax solution designed for flawless slime making with any glue type. Made in the USA, this 16oz activator bottle offers precise control for custom slime textures while providing a safe, washable, and educational STEM experience that turns kids into polymer scientists with every batch.
| ASIN | B07G4FL83P |
| Best Sellers Rank | #15,040 in Toys & Games ( See Top 100 in Toys & Games ) #134 in Slime & Putty Toys |
| Brand | Ultimate Science |
| Brand Name | Ultimate Science |
| Customer Reviews | 4.3 out of 5 stars 591 Reviews |
| Formulation Type | Regular |
| Item Form | Liquid |
| Item Weight | 16 Ounces |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Universe of Science |
| Material Feature | Complies with US safety standards |
| Material Features | Complies with US safety standards |
| Material Type Free | Other Materials Free |
| Model Number | 712038978564 |
| Number of Items | 1 |
| Part Number | 712038978564 |
| Product Benefits | Superior slime making performance |
| Scent | Unscented |
| Skin Type | All |
| Specific Uses For Product | Slime Making |
| UPC | 712038978564 |
| Unit Count | 16 Ounce |
B**E
Making slime easy.
We used this with the AmazonBasics School Glue and some food coloring and got great results. It isn't perfect, but almost as good as the best slime we've bought retail, and the kids love the process. The instructions say add a few drops at a time so we did, but it took a decent amount to get it looking anything like slime. We used a 1/2 cup of glue and ended up having to put at least a couple of good squirts in to get anything to really happen. I thought we had bought a dud, but it really came out great. My son has been playing with it for a few hours and it was perfect the next morning after storing in a ziploc bag. This container will make a TON of slime. I think it will easily outlast the gallon of glue we bought. Great purchase. An actual ratio of activator to glue would have been nice, but not too hard to figure out. I'll try to come up with that ratio or at least a starting point and update this review.
R**H
Amazing slime!!
This is the best activator we have tried. Such a great product!! Great value for the money and great quality!! Will definitely buy it again and again!!
A**H
Best activator on the market!
Excellent product for the price. Great quality. My kids loved it! Made the best slime. Will be buying more.
L**N
WATER
Over activates really fast will turn into a rock. Make sure you use water if you want good slime
M**N
Best birthday present
Our granddaughter evidently loves playing with slime. We asked what she wanted for her birthday, the answer was borax to mix with glue so she could make slime Since she received it, we've gotten several pictures of her playing with her homemade slime.
M**E
Slime activator did not work at all, despite "scientific" approach
So disappointed as I bought this to have my summer camp kiddos make slime. Used a little, used a lot; used clear glue, used white glue; measured, stirred, experimented with 4-5 drops at a time...left with a LOT of failed goo. Next time I'll plan further ahead and get the "original" name brand (that starts with an E) as it always works.
A**K
Slime for days
We had a ton of fun making slime this week. This arrived on time and works just as described and made our beginner slime making easy!
E**D
Not working good
For some reason, the slime is either to liquid or to hard but no good elasticity, I tried a different one and it worked and used it the same amount as this one,
Trustpilot
1 week ago
4 days ago