MQL Lab
💧
MQL Lab
WATER-BASED • NON-TOXIC • ZERO RESIDUE
Homemade MQL for your CNC
Three batch sizes by weight.
Propylene Glycol option + IPA versions for faster drying & rust prevention.
Recipes by Weight
Base lubricant:
BATCH
250 ml
6% lubricant • 1% soap
~6%
| Ingredient | Weight |
|---|---|
| Distilled water | 232 g |
| Propylene glycol 99.9% | 15 g |
| Dawn dish soap | 3 g |
| Total | 250 g ≈ 250 ml |
Lubricant → Dawn → water. Stir gently. Use distilled water.
BATCH
500 ml
6% lubricant • 1% soap
~6%
| Ingredient | Weight |
|---|---|
| Distilled water | 465 g |
| Propylene glycol 99.9% | 30 g |
| Dawn dish soap | 5 g |
| Total | 500 g ≈ 500 ml |
Most popular size. PG + IPA versions recommended for steel machines.
BATCH
1 L
6% lubricant • 1% soap
~6%
| Ingredient | Weight |
|---|---|
| Distilled water | 930 g |
| Propylene glycol 99.9% | 60 g |
| Dawn dish soap | 10 g |
| Total | 1000 g ≈ 1 L |
Material-Specific Versions
Based on 1 L recipe (scale down). IPA = 91–99% isopropyl alcohol for faster dry & machine rust protection.
🛠️
Aluminum
Gummy chips
Standard
80 g PG • 920 g water • 10 g Dawn
+ IPA (rust prevention)
80 g PG • 820 g water • 100 g IPA • 10 g Dawn
🥉
Brass / Nickel-Silver
Zero staining
60 g PG • 930 g water • 10 g Dawn
🧊
Acrylic • PC • Ultem
Low residue
Safest
35 g PG • 955 g water • 10 g Dawn
IPA can craze some plastics — test first
📟
Copper-Clad PCB
Fast dry
Best (with IPA)
25 g PG • 865 g water • 100 g IPA • 10 g Dawn
Tips & Troubleshooting
💨
Mist too dry
Add 10–20 g more PG per liter.
🌊
Too wet / foamy
Halve Dawn or let sit overnight.
🔌
Clogging
Always use distilled water + strain mix.
🛡️
Machine rust?
Use the PG + 100 g IPA version — evaporates fast.