I. Three Steps to Clean Asphalt Inside the Truck
Removing residual asphalt inside a sprayer truck is like removing grease from a kitchen; the key is choosing the right tools and methods:
Preheating and Softening: Use a heat gun or steam gun to heat stubborn asphalt, ideally between 60-80℃.
Mechanical Scraping: Equip with a special scraper and work at a 45-degree angle along the asphalt flow direction to avoid damaging the metal tank.
Solvent-Assisted Cleaning: Use citrus-based biological solvents in conjunction with a nylon brush for cleaning; this is environmentally friendly and won't damage rubber seals.

II. Asphalt Removal Techniques for the Vehicle Body
External asphalt is like chewing gum stuck to your shoes; try this method... Combination Strategy:
First Immediate Action: Wipe with a diesel-soaked cloth before the asphalt hardens.
Stubborn Stains Solution: Apply a baking soda paste (water:baking soda = 3:1) for 20 minutes, then remove with a plastic scraper.
Full Vehicle Polishing Recommendation: Use a clay pad with lubricant for a full polishing treatment every quarter to prevent asphalt from penetrating the paint.
III. Daily Maintenance Tips
Prevention is always easier than cleaning. Remember these three golden times:
After work: Immediately rinse the outlet and valve with detergent water.
Before parking: Apply a thin layer of engine oil to metal parts for corrosion protection.
At seasonal changes: Check the elasticity of all rubber parts and replace worn parts promptly.