Block Blitz Gravel Cleaner Pouches

from £10.99 including FREE UK delivery

Revitalise gravel and decorative aggregates with Block Blitz Gravel Cleaner. Safe and easy to use, simply mix with water, apply and leave. Cleans and protects against algae, moss and weeds, for up to 6 months. Ideal for paths drives and decorative areas.


Block Blitz gravel cleaner is the UK’s first maintenance product for aggregate paths, drives and decorative areas.

Simply water the solution onto the required surfaces and watch the magic work. Used twice a year, Block Blitz will deter up to 90% weed growth and 99% moss growth.

Block Blitz will not only freshen up each piece of gravel but also breakdown any organic debris, removing the environment in which weeds thrive. It will also stabilise the sub-structure and reduce gravel surface movement.

Featuring a unique blend of mineral and plant extracts, Block Blitz products are biodegradable and environmentally friendly. They’re also child and pet safe, making it ideal for home use.

NEW: Block Blitz  Gravel Cleaner Starter Kit

Bring paths and drive back to life with the Block Blitz Gravel Cleaning Kit. Includes 8 pouches,  a watering can, rose and stirring wand for only £39.99. Click here for details!

No scrubbing, no jet washing, children and pet safe


Application guidelines

Always apply Block Blitz to dry gravel or aggregates. Don’t apply if rain is forecast within the next 24 hours.

Standard application

Apply Block Blitz every 5-6 months, at any time of the year.

NB: Before use, it’s advisable to test a small inconspicuous area of the gravel or aggregate to be treated to check for suitability. Block Blitz Block gravel cleaner may leave a white residue, but rainfall will gradually wash this away.

  • Step 1: Fill a 10 litre plastic watering can (fitted with a medium plastic rose) with cold water. Empty one sachet into the water and stir the solution until fully dissolved.
  • Step 2: Start applying at the highest point to control excessive run off that could damage grass and plants. Apply evenly to soak the surface area.
  • Step 3: Leave to dry. Rinse out the watering can and any other equipment with cold water.

Badly soiled gravel or aggregates

Follow these additional steps for areas showing excessive surface algae, moss or weeds.

  • Step 1: Apply first application of Block Blitz. Leave to work for a minimum of two weeks.
  • Step 2: Spot treat any remaining weed growth with weed killing product.
  • Step 3: Apply second treatment of Block Blitz 4 weeks after the first. Block Blitz will gradually break up the moss and debris disperse over time.

Results: Be patient

Allow rainfall to rinse your gravel or aggregates and Block Blitz will gradually start to transform your paths and driveways. Block Blitz has a slow, secondary, cleaning effect which helps prevent the regrowth of algae and moss for months afterwards. It will also help clean the gravel substructure, deterring future weed growth. Any newly emerging weeds can be spot treated with a weed killing product. However, the more you use Block Blitz, the more resistant the joints will become to weed growth.

NB: Block Blitz will not restore the colour of weathered surfaces.

Safety first

IMPORTANT: When using Block Blitz block gravel cleaner;

  • Always wear suitable gloves, eye protection, clothing and footwear.
  • Keep out of the reach of children
  • Keep children and pets off treated areas until dry
  • Never add water to Block Blitz. Always add Block Blitz to water. If you get any powder on your skin, wash off immediately with water.
  • Don’t mix with other cleaning products or acids.
  • Don’t inhale dust or mist.
  • Only use in well ventilated areas.
  • Don’t use in contact with aluminium surfaces

Ingredients: Mineral extracts, Minerals, Plant extracts, Saponified plant oils, Glycerene
Contains: Sodium Metasillicate, Sodium Hydroxide

Warning: May be corrosive to metals. Causes severe skin burns and eye damage. Wash hands thoroughly after handling. Wear skin and eye protection. IF SWALLOWED: Rinse mouth. DO NOT INDUCE VOMITING. IF ON SKIN (or hair):  Rinse cautiously water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Dispose of contents in accordance with local regulations.

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