durgol forte
A powerful descaler for sanitation and construction areas
durgol forte allows you to remove particularly stubborn limescale and urine sediment. This powerful tool against limescale is recommended for use in sanitation and construction environments, in particular.
Important: durgol forte does not contain any corrosion protection and is therefore unsuitable for use with metal. To clean appliances with metal parts, we recommend durgol universal.
Overview of selling points
Outstanding descaling power
1 liter of durgol forte can dissolve approx. 135 g of limescale.
Removes particularly stubborn limescale and urine sediment
durgol forte effectively cleans areas that are severely contaminated with limescale and urine sediment.
Rapid effect
durgol forte cleans approx. 20 times faster than vinegar or citric acid.
Suitable for




tiles, panels, garden paths, terraces, toilet bowls, urinals, flowerpots, clay pots
Instructions
Removal of cement residue; i.e. final cleaning by acidification as a last step when laying panels, after curing of the sealant, and to remove limescale or efflorescence. Before starting, wet joints and highly absorbent panels thoroughly with cold water. Dilute durgol forte at a 1: 3 ratio (durgol: water). Apply the solution evenly with a cloth or brush, then leave it to act for five minutes. Do not allow the solution to dry. Thoroughly scrub the surface. Rinse immediately with plenty of cold water. Rinse the cloth or sponge frequently and always use clear water. Repeat if necessary. Allow to dry completely. When treating larger surfaces, work on sections of max. 4 m2 at a time. One 1,000 ml bottle of durgol forte cleans an area of approximately 20 m2 to 60 m2, depending on the level of contamination.
Removal of stubborn limescale and urine sediment (yellow streaks) Add approx. 3 dl to the water in the toilet bowl. Leave the solution to take effect for as long as necessary; brush and flush. If there are yellow streaks or particularly stubborn residue in your toilet, apply durgol forte using a soaked cloth, allow the product to take effect for up to 30 minutes, then brush and flush. If necessary, also descale your cistern (attention: if the cistern has metal screws, use durgol universal instead of durgol forte).
Removing limescale: use cold water to moisten the clay pot thoroughly. Dilute durgol forte at a 1:1 ratio (durgol: water). Pour the solution into the pot so that it covers all the limescale. Leave to act for up to 30 minutes. To dissolve external limescale residue, place the pot in a larger container and proceed as described. Then rinse the container thoroughly with water.
- durgol forte does not contain any corrosion protection and is therefore unsuitable for use with metal. To clean appliances with metal parts, we recommend durgol universal.
- Before using durgol forte, always read the warning note on the product label.
- Always use durgol forte cold.
- Do not combine with other cleaning products.
Frequently asked questions
How do I dispose of durgol products?
- Tip: pour used descaling solution or any leftover product into your toilet bowl and leave it there until you next use the toilet. This has the following advantage: acid residue can dissolve limescale and urine sediment in the toilet.
- All empty product bottles must be disposed of in domestic waste, even though all durgol bottles are similar to conventional PET beverage bottles. Unfortunately, manufacturers of products sold in PET containers but which are not intended for consumption are not eligible for membership of PET Recycling Switzerland. This means that the durgol bottles must be sorted out before the recycling process, even if they have been rinsed thoroughly.
Ingredients
As per (EC) No. 648/2004 - Annex VII - Section D
- AQUA
- HYDROCHLORIC ACID
- COLORANT
A toilet before and after descaling with durgol


International distribution of durgol
durgol products are sold worldwide by selected distributors. A list of our distributors is available here.
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