Air Conditioner Vibration Foam Pads.
Air conditioner units generate continuous vibration during operation. Without the right isolation material in place, that vibration transfers directly into the mounting surface — causing structure-borne noise, rattling, and long-term wear on fixings and brackets. At AS Rubber & Plastics, we convert and supply a range of foam and sponge materials suited to air conditioner vibration pads, available as custom cut parts, sheets, or rolls to match your exact requirements.
What Are Air Conditioner Vibration Pads Used For?
Isolating the compressor and fan unit from the mounting surface to prevent mechanical vibration transferring into the building structure
Reducing airborne and structure-borne noise in residential, commercial, and industrial HVAC installations
Protecting brackets, fixings, and building fabric from fatigue caused by continuous mechanical stress
Meeting noise and vibration compliance requirements in occupied buildings
They are widely specified in HVAC installations across commercial, industrial, and residential settings where noise control and long-term reliability matter.
Our Range of Materials for Air Conditioner Vibration Pads
There is no single material that suits every application. The right choice depends on the weight of the unit, the installation environment and whether additional properties such as fire retardancy, oil resistance or outdoor weathering performance are required.
Reconstituted Foam (AS704)
A high-density polyurethane foam produced from 100% recycled material, crumbed and rebonded to create a durable, resilient base. Its firm structure handles sustained compressive loads well, making it a practical choice for heavier AC units.
Key Properties:
Density: 90 Kg/m³
Excellent acoustic and sound insulation
High durability and resilience
Available plain or adhesive backed, in sheets or cut parts
Flame Retardant EPDM Sponge (AS409)
A flame retardant closed cell EPDM sponge suited to outdoor AC installations where fire-rated materials are required by specification or regulation.
Key Properties:
Density: 75–105 Kg/m³
Closed cell, airtight and waterproof
Flame retardant
Excellent ozone and ageing resistance
Available plain or adhesive backed, 1–50mm thickness
EPDM Sponge (AS402 / AS405)
Available in two grades to suit different load requirements. A reliable choice for a broad range of AC unit installations, indoors and outdoors.
Key Properties:
AS402 Density: 130–170 Kg/m³ | AS405 Density: 100 Kg/m³
Closed cell, excellent waterproof and airtight performance
Excellent ozone and ageing resistance
Available plain or adhesive backed, 1–50mm thickness
Firm Grade EPDM Sponge (AS403)
The densest grade in the EPDM sponge range, suited to applications where both load-bearing performance and noise control are needed. Holds up under sustained load without permanently deforming.
Key Properties:
Density: 180–200 Kg/m³
Closed cell, good compression set
Anti-rattle performance
Excellent ozone and ageing resistance
Available plain or adhesive backed, 1–50mm thickness
EPDM/Neoprene Sponge (AS302)
A blend of EPDM and Neoprene polymers suited to installations where exposure to oils, refrigerants, or chemicals is a consideration alongside vibration control.
Key Properties:
Density: 90 Kg/m³
EPDM/Neoprene blend, FMVSS302 compliant
Good flammability and solvent resistance ratings
Excellent ageing resistance
Available plain or adhesive backed
Semi Closed Cell EPDM Sponge (AS404)
A semi closed cell EPDM foam useful where pads may be subject to variable loads or require periodic removal, offering good recovery without permanent deformation.
Key Properties:
Density: 85–115 Kg/m³
Semi closed cell, good recovery without deformation
Superior durability
Excellent ozone and ageing resistance
Available plain or adhesive backed
Nitrile PVC Sponge (AS502)
Well suited to plant rooms and industrial HVAC environments where oil or chemical exposure is a consideration alongside vibration control.
Key Properties:
Density: 70 Kg/m³
Class zero fire rating, excellent flammability rating
Good acoustic and thermal insulation
Resistant to oils, fuels, and dilute acids
Available in rolls, sheets, coils, or gaskets, 3–50mm thickness
Soft Grade EPDM Sponge (AS401)
The softest grade in the EPDM sponge range. Its lower durometer makes it particularly effective at absorbing high-frequency vibrations from lighter AC units or fan coil applications.
Key Properties:
Density: 65–70 Kg/m³
Soft grade closed cell, excellent waterproof and airtight performance
Excellent ozone and ageing resistance
Available plain or adhesive backed, 1–50mm thickness
Why Use Anti-Vibration Pads in HVAC Systems?
Air conditioning units contain compressors and fans that run continuously. Over time, the mechanical energy they generate causes fatigue in fixings, brackets and the surrounding structure, increasing maintenance requirements and shortening equipment life.
The right pad material needs to be matched to the unit weight, installation environment and any exposure to weather or chemicals, whether that's a lightweight domestic unit on a timber floor or a large commercial condenser on an exposed rooftop.
Why Choose AS Rubber & Plastics?
Custom Cut
Parts, sheets, and rolls available — plain or adhesive backed
ISO 9001 Accredited
Manufactured and converted to stringent quality standards, every time
Technical Data Sheet
Available for all materials
Expert Advice
On material selection for your specific installation
Request a Quote for Air Conditioner Vibration Foam Pads.
There is no single material that suits every application. The right choice depends on the weight of the unit, the installation environment and whether additional properties such as fire retardancy, oil resistance or outdoor weathering performance are required.