Works well removing limescale. Needs to be dissolved in water to the proper concentration. No instructions are included so I found tips on the internet. Tried 2% solution and 5%, but found that 10% is better (test surface first in case damage might result). Roughly 4g of sulphamic acid in 40cc of water. Make sure it's all dissolved before using the solution. This is a strong acid so safety precautions must be taken. Will gradually degrade when in solution (but not if kept dry) and quickly degrades in hot water.
Verified purchase: Yes | Condition: New
We had slate tiles laid and lots of grout still hung around in the ridges of the tiles. Used a nail brush and a green scrub and it took 90% of the grout up. Will do another wash to get the last few little bits up. For reference, I used about 100g for a 3sqm WC.
Verified purchase: Yes | Condition: New
Nice packaging makes it easy to store. Better than a sachet. Product a really good descaler
Verified purchase: Yes | Condition: New
Well-packaged, professionally labelled, and quickly delivered. Nice white crystals of sulfamic acid, a user-friendly dry acid.
Verified purchase: Yes | Condition: New
The item came well packaged and promptly. I need the crystals to descale a keetle and I belive this amount will last a lot longer that the stuff I've been buying so far.
Verified purchase: Yes | Condition: New
99.5% PURE Sulphamic Acid Sulfamic Crystal 500g 1.5 kg Descaler / Rust Remover works well. Cleaned many rusted car parts.
Verified purchase: Yes | Condition: New
Much cheaper than buying small sachets of kettle, iron etc descaler. Does same job.
Verified purchase: Yes | Condition: New
Great limescale remover and safe to use with metal & chrome fittings.
Verified purchase: Yes | Condition: New
I mix this powder with my bathing scrubs and works very well.
Verified purchase: Yes | Condition: New
Very happy with the quality.
Verified purchase: Yes | Condition: New
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best-selling in Lab Chemicals
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Lab Chemicals
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- You may also like
