
ModsJava
Insoluble Concrete
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.



Insoluble Concrete
Stops concrete powder from hardening when touching water
Instead, throw the concrete powder items into a water cauldron!
This means your concrete only hardens when you want it to! useful for when you want to build under or around water!
The mod is required on the server, but having it on the client is optional - without it the client will have a few visual glitches though, since it will assume the concrete hardens until it receives the actual block update from the server

Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as insoluble_concrete-1.0.3-mc26.1.jar — drop this file into the mods folder
- Download size: 14 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.