What solvent is used as cleaning compound in 2M repair?

What solvent is used as cleaning compound in 2M repair?

• A. Acetone
• B. Isopropyl Alcohol
• C. Ethanol
• D. Water

Answer: (B)

Using a cleaning solvent in 2M repair is about removing oils, flux residues, and contaminants without harming the parts or leaving unwanted residues. Isopropyl alcohol is ideal for this task because it dissolves typical oils and flux easily and then evaporates quickly, so you don’t have to wait long for parts to dry. It also tends to leave minimal residue, which helps prevent conductance or corrosion issues on delicate electronics and mechanical interfaces. In addition, it is generally compatible with common materials found in avionics, such as plastics, elastomers, metals, and coatings. Acetone is a stronger cleaner but can degrade certain plastics, coatings, and adhesives, and it can be more aggressive than desired for sensitive assemblies. Ethanol can work, but it often carries more water content and can leave more residue in some cases, which isn’t ideal for precision repairs. Water by itself won’t remove oily residues effectively and can promote corrosion if drying isn’t perfect. So, isopropyl alcohol provides effective cleaning for oils and flux, dries quickly with minimal residue, and maintains compatibility with the materials typically used in 2M repairs.

Using a cleaning solvent in 2M repair is about removing oils, flux residues, and contaminants without harming the parts or leaving unwanted residues. Isopropyl alcohol is ideal for this task because it dissolves typical oils and flux easily and then evaporates quickly, so you don’t have to wait long for parts to dry. It also tends to leave minimal residue, which helps prevent conductance or corrosion issues on delicate electronics and mechanical interfaces. In addition, it is generally compatible with common materials found in avionics, such as plastics, elastomers, metals, and coatings.

Acetone is a stronger cleaner but can degrade certain plastics, coatings, and adhesives, and it can be more aggressive than desired for sensitive assemblies. Ethanol can work, but it often carries more water content and can leave more residue in some cases, which isn’t ideal for precision repairs. Water by itself won’t remove oily residues effectively and can promote corrosion if drying isn’t perfect.

So, isopropyl alcohol provides effective cleaning for oils and flux, dries quickly with minimal residue, and maintains compatibility with the materials typically used in 2M repairs.