Chapmix-Rapid C20 - Quick hardening screed - PTB Compaktuna

Chapmix-Rapid C20 - Quick hardening screed - PTB Compaktuna

Chapmix-Rapid C20 is a dry , ready-to-use cement -based screed, suitable for indoor use only.

Features :

• Used for laying screeds.
• Dries quickly and can be covered after one day (at + 20°C).
• After 3 days, parquet, cork, etc. can be installed. if the humidity level is less than 2.5%.
• Particularly suitable for renovation work in shops, offices, etc.
• Made of cement, selected quartz sands and high quality additives.
  By simply adding water, a screed with high final strength, rapid hardening and low shrinkage is obtained.

Manual :

Support

Adherent screed

1. The application will always be carried out on a raw, clean, healthy surface, free of dust, traces of oil and loose particles.
   The absorbent supports will first be moistened or treated with a solution of COMPAKTUNA (PRO) /water (1/4).
2. On a hard surface, you must apply an adhesion layer with COMPAKTUNA (PRO).
3. This adhesion layer is composed of one volume of COMPAKTUNA (PRO) and 2 volumes of water.
   This COMPAKTUNA (PRO)/water solution is added to a dry mixture consisting of half cement and half Rhine sand until a thick slip is obtained.
   You must put the CHAPMIX-RAPID C20 on this still wet layer.

Floating screed

1. The plastic film must protrude sufficiently and emerge above the screed.
2. On insulating underlays, you can work in a floating manner.

Application

1. CHAPMIX-RAPID C20 is prepared with ±8% water i.e. with 2 L of water per 25 kg bag depending on the desired consistency.
2. Mix the mixture intensively for 3 minutes with a mixer at low speed, until you obtain a lump-free and homogeneous screed mortar.
3. Spread the screed mortar, level it and densify it.
   An uncompacted screed mortar will have a high percentage of bubbles and will therefore have a lower compressive strength. It is also recommended to reinforce the screed.

Consumption :

± 1.7 kg/mm/m²

Usage time:

± 30 mins.

Mix ratio:

± 2 L of water per 25 kg bag (±8%)

Conditioning :

25 kg: light gray.

Formerly: PTB-Chapmix-Rapid - Rapid hardening screed - PTB Compaktuna