Which blasting methods are used by painters to strip existing coatings?

• A. Abrasive blasting
• B. Wet blasting
• C. CO2 blasting
• D. All of the above

Answer: (D)

Blasting is a surface-prep method painters use to remove existing coatings. Abrasive blasting uses hard media to physically scour off coatings and create a sound surface profile for the new paint. Wet blasting adds water or a slurry with abrasive to keep dust down and control overspray, which is helpful in occupied spaces or where dust and cleanup matter. CO2 blasting (dry ice) uses sublimating pellets to lift coatings with minimal heat and no abrasive residue, often preferred for delicate substrates or easier cleanup. Each method offers different dust, residue, heat, and surface-profile outcomes, so painters choose based on the job’s needs. All of these blasting methods are used to strip existing coatings.