MG Chemicals 4050A-450G, Safety Wash II Electronics Cleaner, 16 oz., Aerosol, Case of 10
MG Chemicals 4050A-450G, Safety Wash II Electronics Cleaner, 16 oz., Aerosol, Case of 10
MG Chemicals 4050A-450G Safety Wash II is a high-purity circuit board cleaner and flux remover supplied in a 450 g aerosol can. Its blend of isohexanes, ethyl alcohol, isopropyl alcohol and ethyl acetate combines polar and non-polar cleaning action for grease, flux residues and other contaminants. It is an option when IPA alone does not provide enough cleaning strength. This listing is for a case of 10 aerosols.
Best Uses / Applications
- PCB cleaning during electronics assembly, repair and maintenance.
- Removing medium to heavy grease and organic contamination from compatible electronic equipment.
- Cleaning ionic flux residues after validating performance against the actual flux and assembly.
- Controlled aerosol dispensing for bench cleaning using the variable-flow valve.
Key Features
- Combines polar and non-polar solvents in one electronics-cleaning formulation.
- Zero solvent residue and quick drying relative to water, according to MG Chemicals.
- Methanol-free formulation.
- Manufacturer-described as safe on most PCB plastics, seals and ceramics; verify compatibility with the actual assembly.
- Variable valve allows the user to control the rate of flow.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer / part number | MG Chemicals / 4050A-450G |
| Product family | Safety Wash II for Electronics |
| Package format | Aerosol; case of 10 |
| Manufacturer net weight per can | 450 g, nominal 16 oz.; not shipping weight |
| Manufacturer net volume per can | 532 mL |
| Cleaning solvent blend | Isohexanes, ethyl alcohol, isopropyl alcohol and ethyl acetate |
| Propellant identified in current SDS | 1,1,1,2-tetrafluoroethane |
| Density at 25°C, TDS | 0.8 g/mL |
| Flash point, TDS | −29°C |
| Boiling point, TDS | At least 52°C |
| Water solubility | Soluble |
| Residue | Zero solvent residue, manufacturer reported |
| Shelf life, current TDS | 5 years |
| Storage guidance, TDS | −20 to 27°C in a dry, well-ventilated area away from sunlight |
| TDS revision | September 9, 2025, version 3.1 |
| SDS reference | Version 5.02; revised October 16, 2025; issued October 28, 2025 |
How Does Safety Wash II Compare?
| Cleaning option | When to consider it |
|---|---|
| 4050A Safety Wash II aerosol | For combined polar/non-polar cleaning action, aerosol flow control and grease or flux contamination that IPA alone does not remove effectively. |
| 4050 Safety Wash liquid | A separate liquid cleaner formulation and dispensing format. Do not assume aerosol and liquid products share identical composition or properties. |
| IPA alone | Evaluate for the specific cleaning task; MG Chemicals positions 4050A as an alternative when IPA lacks sufficient cleaning strength. |
| More aggressive flux-removal chemistry | Consider after testing shows the current cleaner is insufficient; confirm substrate and coating compatibility before changing chemistry. |
Compatibility and Safe Handling
Test a representative sample before production use, including plastics, seals, component markings, adhesives and coatings. The manufacturer's plastic-safe description is not a guarantee of compatibility with every assembly. De-energize equipment before cleaning and allow complete drying before returning it to service.
The current SDS identifies this as a flammable aerosol in a pressurized container that may burst if heated. It also identifies skin and eye irritation, suspected reproductive toxicity, drowsiness or dizziness, aspiration hazard, and long-lasting aquatic toxicity. Review the complete SDS before use. Avoid breathing spray or vapors, use suitable ventilation and protective equipment, keep away from ignition sources, and do not pierce or burn the container. “Safety Wash” does not mean nonflammable or hazard-free.
Existing MTE availability note: Hazardous materials; only available in the USA and Canada. Shipment eligibility remains subject to the order's shipping arrangements.
Frequently Asked Questions
What is MG Chemicals 4050A-450G used for?
Safety Wash II is a circuit board cleaner and flux remover for grease, flux residues and other organic or ionic contamination on compatible electronic assemblies.
What quantity does this listing include?
This listing is for 10 aerosol cans. Each can has a manufacturer-listed net weight of 450 g and net volume of 532 mL.
Is it the same as 4050 Safety Wash liquid?
No. 4050A is the Safety Wash II aerosol formulation. Use the 4050A aerosol TDS and SDS rather than the separate 4050 liquid documents.
Is it safe for all plastics?
MG Chemicals describes it as safe on most plastics, seals and ceramics found on PCBs. Test the specific materials, coatings, markings and adhesives before use.
Does it leave residue?
The manufacturer reports zero solvent residue. An effective cleaning process must also remove the dissolved contamination rather than simply allowing it to dry back onto the assembly.
Is Safety Wash II nonflammable?
No. The SDS classifies it as a flammable aerosol and warns that its pressurized container may burst if heated.
What is its shelf life?
The September 2025 TDS lists five years. Follow the manufacturer's storage instructions and review stock age before use.
Can I control the aerosol spray rate?
Yes. The manufacturer's TDS identifies a variable valve that allows the user to control the rate of flow.
Manufacturer Video
The following video is linked in the manufacturer's 4050A-450G packaging table. Consult the current TDS and SDS for specifications and safe handling.
Watch the manufacturer-linked video on YouTube
Technical and Safety Documents
MG Chemicals 4050A Aerosol Technical Data Sheet
MG Chemicals 4050A Aerosol Safety Data Sheet
Related Resources
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