Isopropyl Alcohol 99.9% (IPA) – High Purity Cleaner for Electronics, Resin & Degreasing
Isopropyl Alcohol 99.9% (IPA) – High Purity Cleaner for Electronics, Resin & Degreasing
Description
ONYX Isopropyl Alcohol 99.9% (IPA, isopropanol) is a high-purity solvent that dissolves grease, oils, flux and adhesive residue, then evaporates in seconds with no residue left behind. With almost no water in it, it's the go-to cleaner for electronics, 3D printing and surface prep.
Popular uses
- Electronics: circuit boards, connectors, keyboards and removing old thermal paste
- 3D printing: washing resin prints and degreasing print beds
- Surface prep: removing oils before painting, gluing, vinyl or sealants
- Glass and mirrors: streak-free cleaning when mixed with distilled water
- Sticky residue: lifting label glue and tape marks
- Salon and workshop: wiping down tools, brushes and workstations
Make your own 70% mix
Mix 7 parts IPA 99.9% with 3 parts distilled water for a general-purpose surface cleaner. Keep it at 99.9% for electronics, where you want no water left behind.
Before you use it
IPA is gentler than acetone, but it can soften some paints, varnishes and plastics such as acrylic. Test on a small hidden area first.
Sizes
Available in 100ml, 250ml, 500ml, 1 Litre, 2 x 1 Litre, 5 Litre and 4 x 5 Litre. Larger sizes cost less per litre, ideal for repair shops, print farms and salons.
Safety
Highly flammable liquid and vapour. Causes serious eye irritation and may cause drowsiness or dizziness. Use in a well-ventilated area away from heat, sparks and open flames, keep the cap tightly closed and keep out of reach of children. Read the safety data sheet before use.
Delivery and returns
Free UK delivery on orders over £30. Free express UK delivery on orders over £40.
Safety & hazards
Signal word: Danger
Hazard statements
- H225 Highly flammable liquid and vapour.
- H319 Causes serious eye irritation.
- H336 May cause drowsiness or dizziness.
Precautionary statements
- P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- P233 Keep container tightly closed.
- P261 Avoid breathing vapours.
- P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P403+P235 Store in a well-ventilated place. Keep cool.
- P501 Dispose of contents and container in line with local regulations.
Summary only. Always read the label and the safety data sheet before use.
Ideal for
Popular uses, plus many more. Always check it's suitable for your application.
Price per litre by size
Larger sizes cost less per litre.
| Size | Price | Per litre |
|---|---|---|
| 100ml | £2.99 | £29.90/L |
| 250ml | £3.99 | £15.96/L |
| 500ml | £5.99 | £11.98/L |
| 1 Litre | £8.99 | £8.99/L |
| 5 Litre | £22.99 | £4.60/L |
| 4 x 5 Litre | £69.99 | £3.50/L |
What's the difference between 99.9% and 70% IPA?
99.9% IPA contains almost no water, so it evaporates quickly and leaves no residue. That makes it the better choice for electronics, glass, screens and resin. If you need a weaker mix, you can dilute it with distilled water.
Is it safe to use on electronics?
Yes, when the device is switched off and unplugged. Apply it with a lint-free cloth or swab and let it evaporate fully before switching the device back on.
Can I use it for resin 3D printing?
Yes. 99.9% IPA is widely used to wash resin prints and clean tools, build plates and vats.
How should I store it?
IPA is highly flammable. Keep the cap tightly closed and store it upright in a cool, well-ventilated place, away from heat, sparks and open flames, and out of reach of children.
