Washing. If the bird mess is very fresh, it can be removed simply by washing carefully with shampoo. The shampoo should be frothy and by flooding the area with shampoo/water mix, it will help lift the damaging mess off the paintwork. If you use a wash mitt, ensure you thoroughly rinse it afterwards.
Snow Foaming. We use snow foam to loosen and soften the dirt and grime on our paintwork prior to washing our cars – the same can work with bird mess. It is possible, depending on the time it has been on the paint / lacquer, that the snow foam can safely remove the mess. However, it should be noted that the chemical within the mess may still be present on the paintwork even when the visible mess has gone, and as such further cleaning is required.
Soaking with APC. If the bird mess is not so fresh and has started to dry, we need to soak it. You can either do this by spraying the area with APC (All Purpose Cleaner) or you can soak a soft microfibre cloth in APC and cover the affected area. With a good dwell time (longer the better), it should be soft enough to remove.
Acid removal. Using an IPA (Isopropyl Alcohol) which does not contain ammonia is a good place to start (ammonia acts as an acid accelerant so should be avoided). Glass cleaners are also good for this as are alcohol gel products. The alcohol content in these products act as a drying agent and will draw out the harmful acid.
Final wash. After the mess has been removed, a final wash is necessary to access the area and evaluate if any damage has occurred to the clear coat.
*NB. Avoid using detail sprays to flush the bird mess or any product which contains wax or sealants. These will seal any acid in and prevent it from being flushed away.