Yes, this can be cleaned! The white powdery film also known as "efflorescence" can occur when crystalline deposits surface on masonry. This natural occurring process can take up to six months to surface after your patio installation, due to the drying of your pavers. A good quality efflorescence cleaner can help combat this issue. Balboni’s carries high quality Alliance brand products for an easy to follow, professional grade result. Note: Be cautious when using this product as it does contain chemicals that can be harmful if manufacturer’s directions are not followed properly. Also, do NOT seal your patio until after you have cleaned the efflorescence.
(June 1, 2017)