RETANOL® XTREME XT

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Retanol® Xtreme XT

Retanol® XtremeXT is renowned for its very high early and final strengths and for its guaranteed quick drying times. With Retanol® XtremeXT Screed, tile floor finishes can be installed after 2 days and all other floor finishes after 3 days (or after 5 days where the screed has been installed over underfloor heating). Retanol® XtremeXT Screed reaches 80-90% of its final strength within 3 days of installation and can reach compressive and flexural strengths of C60 N/mm² and F8 N/mm² respectively.

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  • Drying Times

    from 3 days

  • Compressive and flexural strength

    up to CT-C60-F8

  • Foot traffic

    after 1 day

  • Normal site traffic

    after 2 days

  • Commisioning UFH

    after 1 day

  • Minimum nominal thickness 2 kN/m²

    from 35 mm/30 mm* pipe cover bonded 12 mm

  • Surface strength

    ≥ 1,5 N/mm²

  • Shrinkage

    SW 2 (SW 1 with Agent X ®)

  • Energy efficiency class

    EC 3

  • Certification

    DGNB conformity, emission-tested (TÜV Rheinland), EC1 Plus according to Emicode
DOSAGE & CEMENT QUANTITY
MIXING INSTRUCTIONS
Notes
POINT LOAD INFORMATION
AREAS OF APPLICATION
Downloads

DOSAGE

 XTREMEXTREME HDXTREME ULTRA HD
Compressive strengthCT-C40-F6CT-C45-F6CT-C60-F8**
Dosage400 ml480 ml480 ml
Cement quantity62,5 kg75 kg75 kg
Commisioning cycle4 days4 days4 days

  * with underfloor heating
** 30-40 % 2-8 mm gravel to be added

  • 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 gravel.
  • The strength class depends on the quality of the screed gravel used.
  • The specification ‘after the X. Day’ does not include the installation day.
  • For nominal thicknesses over 80 mm, readiness for covering may be delayed. Therefore, consult with technical support in advance to find a joint solution.

MIXING INSTRUCTIONS

  1. Shake the container well to mix the Retanol® XtremeXT additive to a consistent colour before use, and then shake as required throughout the installation to maintain the consistency of the liquid (every 30 mins).
  2. Fill half of mixing vessel with 0-4 mm screeding sand and required cement.
  3. Dilute Retanol® XtremeXT with the first mixing water (usually 5-10 litres), then fill the machine completely.
  4. Gradually add the required amount of residual water until a stiff-plastic consistency is achieved.
  5. Mix screed for full 2 minutes.

SAND, WATER, CEMENT

  • Grading curve: Sand must be according to BS 13139, for the production of screed concrete, grain size range 0-4 mm
  • W/C value:      Min. 0,4, max. 0,6
  • Cement:            Use of cement according to the PCT cement release list
  • ≥ C60-F8 and/or ready for covering after the 2nd day for tiles: 75 kg cement grade 42.5 R/N or above

PROCESSING INSTRUCTIONS

  • Working time: 45 minutes
  • Finishing time: 60 minutes
  • Outside temperature: +5 °C to +28 °C for screed, environment and substrate
  • Do not mix with other screed additives
  • Never reactivate set screed 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 X®
  • 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
  • 80-90 % of final strength 3 days after installation
  • 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 proprietary screed within its first 56 days after installation , it should not be tested with a RH test, it must be tested with a calcium carbide method before covering.
    Can be tested and approved by PCT Chemie in regard of rest mouisture by PCT Chemie in form of a CM measurement.
  • After 56 days, the Retanol® screed is assessed according to the standard values of BS-8203.

POINT LOAD INFORMATION

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
4,0 kN		7,5 kN/m2
6,0 kN		10,0 kN/m2
8,0 kN
Flexural strength ≥ F6 (with UFH)30 mm***30 mm***40 mm45 mm70 mm85 mm
Flexural strength ≥ F6 (without UFH)35 mm35 mm
Flexural strength ≥ F8 (with UFH)30 mm***30 mm***40 mm40 mm60 mm80 mm
Flexural strength ≥ F8 (without UFH)35 mm35 mm

***Pipe coverage

  •  Unless otherwise defined, data as minimum nominal thickness (without UFH) or minimum pipe cover (with UFH).

AREAS OF APPLICATION

  • For all screeds according to BS 13892/BS 8204
  • Particularly suitable for high-strength screeds with a fast readiness for covering
  • Screed suitable for indoor and outdoor areas as well as in permanently wet areas

Product data sheet

Abbreviated product data sheet

Heating record

GEV (EMICODE) Retanol® Xtreme Pro 1

GEV (EMICODE) Retanol® Xtreme Pro 2

Winter rules

DOSAGE & CEMENT QUANTITY

DOSAGE

 XTREMEXTREME HDXTREME ULTRA HD
Compressive strengthCT-C40-F6CT-C45-F6CT-C60-F8**
Dosage400 ml480 ml480 ml
Cement quantity62,5 kg75 kg75 kg
Commisioning cycle4 days4 days4 days

  * with underfloor heating
** 30-40 % 2-8 mm gravel to be added

  • 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 gravel.
  • The strength class depends on the quality of the screed gravel used.
  • The specification ‘after the X. Day’ does not include the installation day.
  • For nominal thicknesses over 80 mm, readiness for covering may be delayed. Therefore, consult with technical support in advance to find a joint solution.
MIXING INSTRUCTIONS
Notes
POINT LOAD INFORMATION
AREAS OF APPLICATION
Downloads