The Block Blitz solution is a dynamic mineral and plant based barrier detergent, Block Blitz is 100% non-abrasive, contains no bleach, acids or biocides and is biodegradable. You will no longer have to struggle jet washing, scrubbing or sealing your block paving. With the exciting launch of the Block Blitz product, the battle is over. Unlike traditional cleaning methods, Block Blitz uses soft wash technology to lift grime and deter unwanted organic growth: Just apply the product and walk away. Manufactured and developed in the UK, Block Blitz is a unique biodegradable mineral and plant based barrier detergent which has been designed to clean and protect block paving.