1.5 mm GripTec

Vinyl underlay with GripTec surface to prevent slipping
SELITBLOC® 1.5 mm GripTec is perfect for use as an underlay for vinyl or design floors, even in moisture rooms and over underfloor heating. With its pressure-stable foam core, it reliably protects the flooring from damage caused by loads. It also improves the room acoustics by reducing impact sound and walking sound. The innovative GripTec surface prevents the boards from slipping and the joints from opening.

THE underlay for vinyl and design floors – High level of pressure resistance and resilience

  • Protection against damage
  • Efficient impact sound insulation
  • GripTec surface to prevent the boards slipping
Order number 70637
Thickness 1.5 mm
Dimensions 1.2 x 8.5 m
Package contents 10.2 m² + Alu-Tape
Why 1.5 mm GripTec

Easy to process

Easy to install
as a folding panel

Secure connection
with click system

Easy to cut
due to printed grid

Protects the floor

Protection in
uneven areas

Protection against

Prevents the boards
from slipping

Increases living comfort

Suitability for
underfloor heating*

Gentle on
the joints

Reduction of
walking sound

Reduction of
impact sound

Installing 1.5 mm GripTec –

a step-by-step guide

Before installation, please note: The base must be tested according to CEN/TS 14472 before the floor is installed. Its properties must allow 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. Textile floor coverings must be removed before installation in principle. Installation on ceramic tiles, linoleum or wooden floors is only possible with restrictions as this may mark the base. 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

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

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

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

Masking the wall connection area

Step 4
Mask the wall connection area with SELITstop® Moulding Protection Belt to protect against moisture.

Installing the flooring

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

Finishing the installation

Step 6
Repeat steps 2 – 5 until the entire floor has been installed. Connect the individual panels of the underlay using the easy click® contour. Use the Aluminium-Foil Sealing Tape to seal the joints so that they are vapour-tight.

Technical data (according to EN 16354)
Punctual conformability (PC) up to 1 mm
Compressive strength (CS) ≥ 500 kPa ≈ 50 t/m²
Compressive creep (CC) ≥ 35 kPa
Dynamic load (DL75) ≥ 250,000 Zyklen
Coefficient of friction μD (ISO 8295) ≥ 0.8
Impact sound reduction (IS) up to 20 dB
Water vapour diffusion resistance (SD) ≥ 100 m
Water absorption (EN 12087) ≤ 1 %
Thermal resistance (R) ∼ 0.04 m²K/W
Reaction to fire (RTF) Efl
*Suitability for underfloor heating Yes, if flooring R ≤ 0.11 m²K/W

Meets the minimum requirements of the EPLF and MMFA (Group 1)


SELITBLOC 1,5 mm GripTec Produktinformationsblatt
Size: 1,9 MB
SELIT Catalogue
Size: 7,8 MB
Excellent quality
Made in Germany.

Emissions-tested: A+

In accordance with the French VOC regulations, our underlays achieve the lowest emission values and therefore feature the A+ mark.
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Approved by the building authorities

Stay on the safe side with SELIT: all our underlays are approved by the building authorities.
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