
RETANOL®

Retanol®
Whether 5-7*, 14* or 21* days - the reliable readiness for covering ensures a smooth construction process and satisfied clients. Thanks to its CT-C35-F5 strength, Retanol® is also perfect for laying parquet and reducing the nominal thickness.
Drying Times
after the 5th-7th* dayCompressive and flexural strength
up to CT-C35-F5Foot traffic
after 1 dayNormal site traffic
after 2 daysCommisioning UFH
after 1 dayMinimum nominal thickness 2 kN/m²
from 35 mmSurface strength
≥ 1,0 N/mm² (from C30-F5)Shrinkage
SW 2 (SW 1 with Agent R®)Energy efficiency class
up to EC 2Certification
DGNB conformity, emission-tested (TÜV Rheinland), EC1 Plus according to Emicode
DOSAGE & CEMENT QUANTITY
MIXING INSTRUCTIONS
NOTES
POINT LOADS INFORMATIONS
AREAS OF APPLICATION
Downloads
DOSAGE
| Compressive strength | CT-C20-F4 | CT-C20-F4 | CT-C25-F4 | CT-C35-F5 |
| Drying times | after 18-21* day | after 10-14* day | after 5-7* day | after 5-7* day |
| Dosage | 200 ml | 250 ml | 350 ml | 350 ml |
| Cement quantity | 50 kg | 50 kg | 50 kg | 55 kg |
| Energy efficiency class | EC 1 | EC 1 | EC 1 | EC 2 |
| Site traffic | after 4 days | after 3 days | after 2 days | after 2 days |
| Commisioning UFH | after 5 days | after 2 days | after 1 day | after 1 day |
| Commisioning cycle | 14 days | 10 days | 6 days | 6 days |
* with underfloor heating
- Do not exceed the maximum dosage of 500 ml.
- The specifications refer to a standard mixing vessel with a net capacity of 200 litres and a filling quantity of approx. 320 kg screed sand.
- The strength class depends on the quality of the screed sand used.
- The specification ‘after the X. Day’ does not include the day of installation.
- For screed thicknesses of more than 60 mm, unheated, and 70 mm, heated, always dose with 350 ml.
- For nominal thicknesses over 80 mm, readiness for covering may be delayed. Therefore, consult with technical support find a joint solution.
- Applies to all product versions: EKA/EKA Blau/EKA BW/VIWA/VIWA Gelb and all Pro versions.
MIXING INSTRUCTIONS
- Shake the container well to mix the Retanol® additive to a consistent colour before use, and then shake as required throughout the installation to maintain the consistency of the liquid (every 30 min)
- Fill half of mixing vessel with 0-4 mm screeding sand (60-70% fine grains up to 2 mm in diameter, and 30-40% coarse grains greater than 2 mm in diameter).
- Add Retanol® to the first mixing water (usually 5-10 litres), then fill the machine completely.
- Gradually add the required amount of residual water until a stiff-plastic consistency is achieved.
- Let the screed mix for a full 2 minutes.
SAND, WATER, CEMENT
- Grading curve: Sand must be according to DIN 1045-2 A/B, for the production of screed concrete, grain size range 0-4 mm
- W/C value : Max. 0,6
- Cement: Use of cements according to the PCT cement release list
PROCESSING INSTRUCTIONS
- Working time: 60 minutes
- Finishing time: 90 minutes
- Outside temperature: +5 °C to +28 °C for screed, environment and substrate
- Do not mix with other screed additives
- Never reactivate screed that has already set with water
Airing
- If the air humidity is 55 % or higher, ventilate 3-4 times a day for 20-30 minutes 24 hours after screed installation in order to achieve readiness for covering.
- If the humidity is below 55%, contact PCT technical support to avoid cupping etc.
FURTHER PRODUCT FEATURES
- Shrinkage can be further reduced in combination with Agent R®
- Density approx. 2,000 to 2,200 kg/m3
- Thermal conductivity approx. 2.0-2.4 lambda
- Better processing and lower peel resistance
- Minimally effected by building climate conditions
- Reduction of air content
- Start ventilation after 24 hours
- Moisture protection for at least 4 months
Protective instructions during and after installation
- We recommend our PROTEC-ES/SP product to protect against drying out too quickly, depending on the floor covering. We recommend consulting the PCT technical support team.
- Protect the screed against rapid drying of the surface due to draughts, sunlight and low humidity.
- Large window fronts and floor-level glass façade areas should be darkened if necessary.
- Cover screeds in outdoor areas or enclose areas to be covered. Contact PCT technical support if screed is to be laid outdoors.
CM MEASUREMENT
- A Retanol® screed is considered a special screed in terms of readiness for covering in the first 56 days after installation and can be tested and approved by PCT Chemie with regard to its readiness for covering by means of a CM measurement.
- The CM measurement, including the issuing of a guarantee declaration and the assumption of the warranty, can be ordered free of charge from PCT Chemie during this period by the Retanol® specialist company, floor layers, tilers or the client. Further information on the release of the screed can be found on our homepage under ‘Guarantee’.
- After 56 days, the Retanol® screed is assessed in accordance with the standard values of DIN 18560.
POINT LOADS INFORMATIONS
| Area load Point load | 2,0 kN/m2 1,0 kN | 3,0 kN/m2 2,0 kN | 4,0 kN/m2 3,0 kN | 5,0 kN/m2 3,0 kN | 7,5 kN/m2 6,0 kN | 10,0 kN/m2 8,0 kN |
| Flexual strength ≥ F4 | 40 mm | 50 mm | 55 mm | 60 mm | n/a | n/a |
| Flexual strength ≥ F5 | 35 mm | 45 mm | 50 mm | 55 mm | 75 mm | 90 mm |
- Specifications, unless otherwise defined, as minimum nominal thickness (without UFH) or minimum pipe cover (with UFH).
AREAS OF APPLICATION
- For all screeds according to DIN 18560, part 1–7
- Particularly suitable for high-strength screeds with a fast drying requirement
- Screed are suitable for indoor and outdoor areas as well as in permanently wet areas
DOSAGE & CEMENT QUANTITY
DOSAGE
| Compressive strength | CT-C20-F4 | CT-C20-F4 | CT-C25-F4 | CT-C35-F5 |
| Drying times | after 18-21* day | after 10-14* day | after 5-7* day | after 5-7* day |
| Dosage | 200 ml | 250 ml | 350 ml | 350 ml |
| Cement quantity | 50 kg | 50 kg | 50 kg | 55 kg |
| Energy efficiency class | EC 1 | EC 1 | EC 1 | EC 2 |
| Site traffic | after 4 days | after 3 days | after 2 days | after 2 days |
| Commisioning UFH | after 5 days | after 2 days | after 1 day | after 1 day |
| Commisioning cycle | 14 days | 10 days | 6 days | 6 days |
* with underfloor heating
- Do not exceed the maximum dosage of 500 ml.
- The specifications refer to a standard mixing vessel with a net capacity of 200 litres and a filling quantity of approx. 320 kg screed sand.
- The strength class depends on the quality of the screed sand used.
- The specification ‘after the X. Day’ does not include the day of installation.
- For screed thicknesses of more than 60 mm, unheated, and 70 mm, heated, always dose with 350 ml.
- For nominal thicknesses over 80 mm, readiness for covering may be delayed. Therefore, consult with technical support find a joint solution.
- Applies to all product versions: EKA/EKA Blau/EKA BW/VIWA/VIWA Gelb and all Pro versions.
MIXING INSTRUCTIONS
NOTES
POINT LOADS INFORMATIONS
AREAS OF APPLICATION
Downloads