STP SPLEN 4 Silver Bulk self-adhesive thermal and acoustic insulation, 4 mm thick

STP Standartplast
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€ 79,00
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STP Splen 4 Silver Bulk Self-adhesive thermal and acoustic insulator 4 mm thick

STP Splen 4 Silver Bulk is a self-adhesive thermoacoustic insulating material designed to improve cabin comfort through the reduction of residual noise and thermal insulation of the vehicle's interior surfaces. Made from closed-cell polymeric foam, it is designed to be used as a second layer in soundproofing treatments, combined with butyl anti-vibration materials. Its 4 mm thickness makes it particularly versatile, allowing a good balance between insulating capacity, lightness and ease of installation even in tight spaces.

What a closed-cell thermoacoustic insulator is used for

After reducing structural vibrations with an anti-vibration material, it is important to limit the propagation of residual noise and improve thermal insulation. STP Splen 4 Silver helps to:

  • attenuate airborne noise
  • improve thermal insulation
  • limit heat loss
  • reduce creaks between panels
  • increase overall acoustic comfort

The closed-cell structure also offers:

  • low moisture absorption
  • lightness
  • stability over time
  • good flexibility

This material works in synergy with anti-vibration sheets improving the overall effectiveness of the treatment.

Recommended applications

STP Splen 4 Silver is suitable for applications where a second insulating layer is needed without excessively increasing thicknesses. Typical applications:

  • door panels
  • interior plastics
  • vehicle roof
  • center tunnel
  • trunk
  • side panels
  • dashboard
  • areas behind trim

It is particularly suitable for:

  • car soundproofing
  • OEM comfort upgrade
  • car audio installations
  • reduction of secondary noise

Installation and use

Recommended procedure:

  1. first apply the anti-vibration material
  2. thoroughly clean the surface
  3. cut the material to the desired size
  4. remove the protective film
  5. apply with uniform pressure

Thanks to its high flexibility it can be easily installed even on shaped surfaces. The 4 mm thickness allows simple installation in most areas inside the vehicle.


STP Splen 4 Silver Bulk is a practical solution to improve thermal insulation and acoustic comfort in multilayer automotive treatments. Thanks to the closed-cell structure, lightness and ease of installation, it represents an effective complement to anti-vibration materials for achieving balanced and well-optimized treatments.

Scheda tecnica

n-20230705121533-stp-splen.pdf

20 x STP Silver Splen 04

STP Splen 4 Silver Bulk Technical specifications

  • Type: self-adhesive thermoacoustic insulator
  • Structure: closed-cell polymeric foam
  • Thickness: 4 mm
  • Application: self-adhesive
  • Properties: thermal and acoustic insulation
  • Moisture resistant
  • High flexibility
  • Low weight
  • Use: automotive / car audio / cabin comfort
€ 79,00 Price incl. VAT