SELITPRO® HD 3 mm AquaStop

Quietening function with integrated vapour barrier
No more loud walking. SELITPRO® HD 3 mm ensures pleasant room acoustics thanks to significantly reduced walking sound. As a combination product with AquaStopTM technology, it also has an integrated vapour barrier that protects against damage caused by moisture. The high load-bearing capacity of the base completes the overall package. SELITPRO® HD 3 mm AquaStop works excellently with underfloor heating.

Heavy-duty film with mineral filling – good for use with underfloor heating

High load-bearing capacity
Excellent reduction of walking sound
With vapour barrier to prevent residual moisture

Order number	70693
Thickness	3 mm
Dimensions	1 x 5.5 m
Package contents	5.5 m²

Why SELITPRO® HD 3 mm AquaStop

Easy to process

Easy to cut
due to printed grid

Protects the floor from damage

Protection against
loads and use

Protection against
falling objects

Protection against
rising moisture

Protection in
uneven areas

Increases living comfort

Suitability for
underfloor heating*

Reduction of
walking sound

Reduction of
impact sound

Installing SELITPRO® HD 3 mm AquaStop –

a step-by-step guide

Before installation, please note: check the base in accordance with CEN/TS 14472 and ensure that the quality of the base is suitable for proper processing. In general, the base should be clean, level, dry, resistant to tension and compression and should not contain any substances such as plasticisers, solvents or other diffusing substances. It must be ensured that the base is in a state of equilibrium humidity and that the CM value is below 2.0% (for cement screed) or below 0.5% (for anhydrite screed and anhydrite flowing screed). The processing instructions of the flooring manufacturer are to be observed as binding specifications.

Cleaning the surface

Step 1
Clean the surface thoroughly with a brush or vacuum cleaner. Remove any adhesive and paint residues completely.

Laying out the first panel

Step 2
Lay the first panel of the underlay flush with the wall over the entire width of the room. Make sure that the aluminium side is at the top.

Masking joints

Step 3
To protect against moisture, seal possible joints with SELITstop® Aluminium-Foil Sealing Tape to make the joints vapour-tight.

Masking the wall connection area

Step 4
To protect the wall connection area from moisture, we recommend SELITstop® Moulding Protection Belt.

Installing the flooring

Step 5
Lay the flooring in the same orientation as the underlay. Do not place any load on the underlay. If necessary, place the board under your knees/feet to distribute the load.

Finishing the installation

Step 6
Repeat steps 2 – 5 until the entire floor has been installed. Seal all joints with the Aluminium-Foil Sealing Tape to make them vapour-tight.

Technical data (according to EN 16354)

Punctual conformability (PC)	up to 1 mm
Compressive strength (CS)	≥ 90 kPa
Compressive creep (CC)	≥ 25 kPa
Dynamic load (DL₂₅)	≥ 250,000 cycles
Resistance to large ball (RLB)	≥ 50 cm
Water vapour diffusion resistance (SD)	≥ 100 m
Thermal resistance (R)	~ 0.010 m²K/W
Impact sound reduction (IS)	up to 18 dB
Reaction to fire (RTF)	E_fl
*Suitability for underfloor heating	Yes, if flooring R ≤ 0,14 m²K/W (e.g. laminate up to approx. 12 mm, wood flooring up to approx. 14 mm)