Hi there
Live in a very clean air area. Have HD rear lights out twice (64 plate) on frost white. Build up of green stuff. Yuk. Tried cleaning, near impossible. Have a holiday home with a upvc deck and also shows green stuff. Tried, diluted a product called Patio Magic bought from Amazon. Took lights out, used cap from bottle, gently poured it in and around. 3 days later, lights are clear and sparkling. Might try to do it next time whilst lights still on the car. Bottom side of lights might mean I need to take them off.
Live in a very clean air area. Have HD rear lights out twice (64 plate) on frost white. Build up of green stuff. Yuk. Tried cleaning, near impossible. Have a holiday home with a upvc deck and also shows green stuff. Tried, diluted a product called Patio Magic bought from Amazon. Took lights out, used cap from bottle, gently poured it in and around. 3 days later, lights are clear and sparkling. Might try to do it next time whilst lights still on the car. Bottom side of lights might mean I need to take them off.