Got a question about this product?

Our Calcium, Lime and Rust Remover instantly removes even the heaviest calcium deposits, limescale and rust stains. The concentrated acid formula works on a variety of surfaces including concrete, porcelain, glass, metal, cement, stucco, chrome and more.

  • The concentrated acid formula removes heavy mineral deposits even when diluted.
  • Use on: Porcelain baths, shower heads, sinks, toilets, cement, glass & fibreglass.
  • Not suitable for use on: Wood, fabric, natural stone, aluminium, brass or painted surfaces. It may etch older sinks, baths and tiles.

Dilution Ratios:

Mix 50/50 solution with warm water.

To clean baths, toilet bowls and sinks:

  1. Apply to the surface to be cleaned with a brush, sponge or cloth.
  2. Rinse thoroughly with clean water within 60 seconds of contact with the surface.
  3. Tough stains may require a second application.

To clean cement, brick & stucco:

  1. Apply to the surface to be cleaned with a brush, sponge or cloth.
  2. Rinse thoroughly after 5 minutes.
  3. Tough stains may require a second application.


Always test on an inconspicuous area before use.

Do not mix with other chemicals or bleach.

Used this to descale a built in cistern for a wall hung cistern. The push mechanism was sticking; used this and 10 mins later problem solved.
Having spent all day trying to remove rust stains from patio slabs staff at Screwfix suggested this product, having tried various rust remover products I was not expecting much however to my surprise after leaving it soak in for only 15 minutes I hosed it off, rust had gone patio looks like new I am now a very happy bunny and have already suggested it to a few of my lady pensioner friends.
Used it to restore heavily scaled shower tiles and mixer valves. 2 applications, now like new, make sure it’s well ventilated.
Very effective product, cleaned a badly scaled up and rust stained toilet pan very quickly and with a minimum of scrubbing. No noxious fumes either. Delighted with the results. Excellent value too, this tough job needed only 1/4 of the bottle.
This is an awesome product it does exactly what it claims to do, I had some really bad calcium build up it one of our toilets at home due to little use I believe. It looked very unsightly, so much so I was going to change the pan, started looking at my options and came across this product so thought l’d give it a go I was amazed to see the end result my toilet looks like new very happy and not over top on price.