Why use PVA powder instead of glue to make slime?
If you're up for the challenge of making slime from scratch, or if commercial Clear PVA Glue feels too generic for your creative experiments. This post will guide you in choosing the PVA powder and achieving a one-of-a-kind clear slime texture.
Why you can trust us
- We are a slime factory.
- We have an independent PVA glue production workshop.
- Raw material level control: PVA powder direct supply system.
Want to know more? Visit our store.
Table of content
The advanced road of Slime Master: Parameters of PVA
Making slime is a chemical reaction process. However, we must first know the physical properties of various materials to make slime of better quality.
We can see these parameters on the PVA packaging bag:
- Hydrolysis %
- Viscosity Mpa.s
- Volatile %
- Ash %
- PH value
PVA glue manufacturers will not publish these data, as they are confidential. Kinda sounds like me.
We are mainly concerned about Hydrolysis % and Viscosity Mpa.s, which determine the slime's thickness, viscosity (stick add-ins), and transparency.
Volatile % and Ash %. We just need to remember that the smaller their values, the better. The value of Volatile % is generally 5, and the value of Ash % is generally 0.7
PVA for slime: How to make clearer slime
Conclusion in one sentence: Choose around 88% hydrolysis PVA. Such as PVA2488, PVA1788.
The above picture shows a series of PVA hydrolysis %. We can find that the hydrolysis % is roughly divided into 88% and 99%.
88% hydrolysis PVA is easily soluble in water and has good transparency.
So, how about 99% hydrolysis？
Theoretically, slime made from 99% hydrolysis PVA is clearer than that of slime made from 88% hydrolysis PVA.
99% hydrolysis PVA is more difficult to dissolve in water and requires processing temperature. This post is only a beginner's guide and does not detail the use of 99% hydrolysis PVA.
PVA for clear slime: Catch add-ins well
Conclusion in one sentence: Choose large numbers of Viscosity PVA, such as PVA2488.
The picture above shows the stickiness of PVA, which reflects the ability to catch Add-ins, such as glitter, foam balls, crunch bombs, and other materials. Also, it will "catch" your hand and make you feel sticky.
Which PVA is best for you to use to make clear slime?
Hover the point, find the PVA item you want
If you have tried PVA1788 and PVA2488, you may find they have similar transparency, but the slime made by PVA2488 is thicker and stickier.
Maybe you found some patterns.
PVA Naming Rules
Typical format: PVA-XYCC
| Part |
Mean | Effect on Slime |
| XY |
Degree of polymerization |
Thickness & Viscosity |
| CC |
Degree of hydrolysis |
Transparency |
Model and performance relationship
- The first two numbers: The smaller the number, the shorter the molecular chain. The thinner texture of slime.
- Last two numbers: 88% easily absorb water, 99% need to be heated to 80 degrees to start absorbing water.
Do you have a brand of PVA you recommend?
I highly recommend Kuraray made in Japan.
Do you sell PVA powder?
No, but I do sell high-quality PVA Glue. Support wholesale.
