What Is RENDAMP® 2K?

What Is RENDAMP® 2K?

Advanced Viscoelastic Damping Solution for Marine and Industrial Applications

In marine and industrial environments, structure-borne vibration is one of the primary sources of noise, fatigue damage and reduced operational comfort. Engines, rotating machinery, propulsion systems and impact loads generate mechanical excitation that propagates through steel and composite structures, often transforming into airborne noise at resonance frequencies.

RENDAMP® 2K, developed by Renboya, is an advanced two-component polyurethane-based viscoelastic damping compound designed specifically to control vibration at its source — not by adding mass, but by dissipating energy through controlled shear deformation.

How RENDAMP® 2K Works

RENDAMP® 2K operates on the principle of viscoelastic energy dissipation:

• • A viscoelastic layer is applied between a structural substrate and a rigid constraining plate
• • When vibration occurs, the layer undergoes shear deformation
• • Mechanical energy is converted into heat
• • Structural resonance is suppressed
• • Vibration transmission paths are significantly reduced

Unlike mass-loaded damping materials, this mechanism provides high damping efficiency without unnecessary weight increase.

Dual Functionality: Damping Layer and Structural Bonding

One of the key advantages of RENDAMP® 2K is its dual functionality:

• • Acts as a high-loss viscoelastic damping medium
• • Serves simultaneously as a structural adhesive, bonding both surfaces during curing

Once cured, the material forms a permanently elastic visco-structural interface, maintaining damping performance over a wide frequency and temperature range.

Typical Applications

Marine & Offshore

• • Hulls, decks and bulkheads
• • Engine rooms and machinery foundations
• • Propeller and thruster-adjacent structures
• • Floors and decks for impact noise reduction
• • Accommodation and technical spaces

Industrial & Transport

• • Generator and pump enclosures
• • Heavy machinery foundations
• • Rail and automotive structures
• • Portable power units and equipment housings

RENDAMP® 2K is particularly suitable for environments where traditional damping solutions are insufficient and where acoustic performance, durability and regulatory compatibility must be achieved simultaneously.

Key Performance Advantages

• • Two-component polyurethane-based viscoelastic compound
• • Designed specifically for constrained layer damping (CLD) systems
• • Highly effective reduction of structure-borne vibration and radiated noise
• • Broad frequency effectiveness, including low-frequency excitation
• • Excellent adhesion to carbon steel, aluminium, stainless steel and composites
• • Highly thixotropic formulation — no slumping on vertical or overhead surfaces
• • Resistant to seawater, oils, fuels and corrosive marine environments
• • Low-odour formulation suitable for confined spaces
• • Cures without shrinkage, cracking or loss of adhesion
• • Lightweight solution with high structural efficiency

Fire Performance and Regulatory Awareness

RENDAMP® 2K has been developed with marine fire safety requirements in mind.
When installed as part of an approved system configuration, it exhibits self-extinguishing behaviour and does not promote flame spread within sandwich constructions.

Final fire classification depends on the complete system configuration and relevant IMO FTP testing protocols.

A Precision Solution for Demanding Applications

RENDAMP® 2K is engineered for projects where vibration control cannot be compromised. By targeting vibration at its source and combining damping efficiency with structural integrity, it delivers a balanced, high-performance solution for demanding marine and industrial noise and vibration control applications.

For more information about RENDAMP® 2K and advanced vibration damping solutions, visit:
👉 www.renboya.com