Mayline AP20

Self-sealing liquid for tap water installations

Self-sealing liquid for tap water installations with daily leakage of up to 20 litres

Mayline AP20 is a liquid which eliminates leaks in tap water installations of up to 20 L per day and is suitable for use with all of material currently in use, even plastic, certified for use with drinking water. The product can be used to seal leaks due to corrosion, cracks and defective soldering in galvanised, copper, steel and synthetic pipes. Mayline AP20 is long lasting and resistant to deterioration. Mayline AP20 can be used in the food sector.


Code | Package: 5/MYAP20 | 5 l canister
Important note: Shake the container well before use. Mayline AP20 can NOT be mixed with glycols, antifreezes or other chemical products. After the sealing process has been completed, the Mayline AP20 must be immediately removed from the system. The recovered product can be reused various times. Protect the product from frost. Application time Minimum 24 hours with pressure at least 2 bar higher than the normal operating pressure.
Instructions for use: Mayline AP20 self-sealing liquid contains selective cellulose fi bres which are deposited over the leak, thereby providing a fi ltering effect that reduces the flow. This allows the chemical elements crystallize externally and harden defi nitively over time. 1. Preliminary phase Close off and empty the defective line. Collect the water and measure it to determine the necessary amount of product. Close of the valves beneath the wash basin, remove the tap and seal off with a stopper. Perlators, screens, fi lters and counters must be removed. Seal off the access tubes for any dishwashers and washing machines. Rinse the system out well and remove any calcium deposits using Mayline S26 liquid descaler. 2. Operative phase Pressurize the circuit to be sealed with AP20 to about 5 – 7 bar using a loading pump. The Mayline AP20 must come out of the leak in order to crystallize inside the line. In the case of particularly humid environments, Mayline AP20 requires at least 24 hours under hot conditions to set. At room temperature, this time must be extended to 2 or 3 days. In the case of pipes with tight external coverings which do not allow air to pass, sealing is not always possible (ex. a covered copper pipe with a leak where the covering is glued). After the sealing process the product has to be collected, all working tools has to be cleaned accurately. The product can be reused many times.
Safety informations: In the event of eye contact, rinse eyes thoroughly with much water and consult a doctor. In the event of skin contact, rinse well with water. Wear gloves and protective eyewear. Use water to immediately remove the product from objects such as tiles, flooring, wash basins, etc. Keep out of reach of children!
Mixing proportions: Refer to the material safety data sheet (MSDS)
Mixing proportions: DO NOT dilute. The product comes ready for use.
Transport: The product is not hazardous for transport. The indications are provided based on actual experience. Technical changes are possible.
Disposal: For information concerning waste disposal/effluent, please consult the corresponding safety data sheet.
Shelf life: Shelf life 5 years (from date of manufacture)

Technical Datasheet