893-14620 - Thermo Tec Suppressor Acoustical & Heat Control Mat 36" x 60"

893-14620 – Thermo-Tec Suppressor Acoustical & Heat Control Mat (36" x 60")

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The Thermo-Tec 893-14620 is a high-performance, dual-purpose thermal barrier and acoustic dampening mat designed for severe-environment localized insulation challenges. Measuring 36" x 60" (15 sq. ft.), this multi-layered material composite provides a reliable option for custom insulating applications in aircraft ground support equipment (GSE), specialized flight-line power units, training simulators, experimental aircraft projects, and non-structural engine compartment enclosures. Engineered to handle radiant heat signatures up to 2000°F ($1093^{\circ}\text{C}$), it simultaneously serves as an acoustic dampening mat to suppress structure-borne vibrational resonance, protecting both passengers and sensitive electrical equipment from high-intensity noise fatigue.

Fabricated by Thermo-Tec, an industry leader in specialized exhaust and heat shielding technology, the 893-14620 features a composite design that pairs a rugged, high-purity aluminum face with an advanced, high-density polyethylene-backed elastomeric layer. This material blend is finished with a high-temperature, aggressive pressure-sensitive adhesive (PSA) backing. The textured aluminum shield reflects high-intensity infrared radiant heat away from critical bulkheads, fluid lines, and avionics bays, while the flexible elastomeric core converts mechanical vibration energy into low-level heat.

The Thermo-Tec 893-14620 provides a field-proven solution for managing high heat and acoustic noise. The flexible, thin profile allows it to be cut and shaped around non-symmetric geometries, sharp angles, and tight clearway boundaries without splitting or delaminating. For maintenance facilities, completion centers, and ground support equipment technicians, choosing this heavy-duty material ensures long-lasting defense against localized heat stress and structural noise fatigue.

Key Features

• Dual Thermal-Acoustic Protection: Combines a high-efficiency radiant heat shield with an integrated mechanical sound dampening core to mitigate high-amplitude vibration and localized structural panel noise.

• 2000°F Radiant Heat Resistance: The textured aluminum outer facing reflects up to 90% of infrared radiation, shielding delicate proximity wiring, hydraulic lines, and firewalls.

• High-Temperature Adhesive Backing: Equipped with a rugged, aggressive pressure-sensitive adhesive (PSA) that establishes a strong surface bond on metals, fiberglass, and plastics without peeling under thermal cycling.

• Flexible 15 Sq. Ft. Coverage Mat: Easily measured, scored, and formed to contour cleanly around tight radii, floorboards, bulkheads, and complex engine nacelle interior walls.

• Excellent Fluid & Environmental Resistance: Engineered to withstand moisture, common workspace solvents, and fuel splashes, maintaining structural integrity across grueling service lifecycles.

Technical Specifications

• Part Number: 893-14620 (Thermo-Tec Product Code: 14620)

• Component Type: Adhesive-Backed Acoustical & Thermal Control Mat

• Manufacturer: Thermo-Tec Insulation

• Dimensions / Total Area: 36" x 60" (3 Feet x 5 Feet) / 15 Square Feet ($1.39\text{ m}^2$)

• Nominal Thickness: Approximately 0.070 Inches (1.78 mm)

• Facing Material: Textured, High-Purity Reflective Aluminum Foil

• Dampening Substrate: High-Density Polyethylene-Backed Elastomeric Matrix

• Attachment Method: High-Temperature Pressure-Sensitive Adhesive (PSA) Base

• Radiant Heat Threshold: Up to 2000°F ($1093^{\circ}\text{C}$)

• Direct Contact Threshold: Up to 300°F ($149^{\circ}\text{C}$) continuous contact limit

• Packaging Dimensions: 36.5 x 5.0 x 5.0 Inches

• Component Weight: 5.5 lbs (2.49 kg)

• Use: Experimental aircraft only

Equipment & Airframe Applications

• Ground Support Equipment (GSE): Internal insulation for aircraft tug enclosures, external turbine engine ground power units (GPUs), airstart carts, and hydraulic test benches.

• Specialized Fleet Modifications: Floorboard and firewall lining for non-Type-Certificated airframes, flight training simulators, mobile diagnostic vans, and remote telemetry housing modules.

• Custom Powerplant Cowlings: Localized radiant heat protection on experimental piston engine baffling, generator enclosures, and secondary auxiliary power housing.

• Note: For standard aircraft installations, consult the Illustrated Parts Catalog (IPC), Engineering Data Plates, or applicable FAA Major Alteration regulatory updates to verify compliance with burn-test certificates (such as 14 CFR Part 25.853).

Applications

• Radiant Heat Deflection: Protecting structural components from severe exhaust manifold radiation, high-power resistors, or auxiliary heater ducts.

• Panel Vibration Dampening: Eliminating high-frequency panel buzz and drumming inside aluminum or fiberglass enclosures.

Why Choose 893-14620?

Using a field-proven material like the Thermo-Tec 893-14620 Suppressor mat prevents the material failures commonly seen with standard unshielded insulation foams. Cheaper acoustic materials often degrade, harden, and crumble when subjected to rapid thermal cycles and industrial fluids, presenting a foreign object debris (FOD) risk or catching fire if exposed to sparks. Thermo-Tec's textured aluminum barrier preserves the underlying elastomeric bond, preventing core breakdown, moisture absorption, and thermal degradation. This shielding protection keeps internal noise levels down and guards adjacent electronics against thermal heat damage.

The performance mechanics of the Thermo-Tec 893-14620 turn on the principles of high-efficiency electromagnetic wave reflection and viscoelastic vibrational damping. Radiant heat energy propagates from high-temperature exhaust assemblies primarily as infrared radiation. The textured aluminum facing of the 893-14620 acts as a highly efficient reflector, blocking up to 90% of this radiant wave energy before it can penetrate the underlying structure. The mechanical energy from acoustic noise traveling through airframe sheet metal or equipment panels operates as long-wave kinetic energy.

When these structural vibrations strike the mat, they encounter the high-density elastomeric matrix. This layer functions via the physics of shear-deformation energy conversion, where the physical movement of the panel forces the long-chain polymer strands inside the mat to slide past one another. This friction converts incoming mechanical noise waves into low-grade thermal energy, which is safely dissipated across the surface of the panel. This process effectively lowers the overall resonant frequency of the metal surface, stopping acoustic drumming and protecting close-proximity wires and line brackets from severe mechanical fatigue.

Note: The Thermo-Tec 893-14620 is a heavy-duty thermal and acoustic control mat. This part is not pre-certified under specific FAA TSO guidelines for primary interior passenger cabin boundaries on Type-Certificated Part 121 or Part 25 airframes unless supported by a verified Supplemental Type Certificate (STC) or a local FAA Form 337 burn-test approval. Material layout, cutting, and surface preparation must be performed by qualified personnel. To ensure a permanent adhesive bond, the target metal substrate must be thoroughly stripped of all oxidation, grease, and dirt using an approved solvent (such as Isopropyl Alcohol or Acetone) before rolling the mat down with a heavy-application seam roller tool.

Documentation

• Thermo-Tec Official High-Performance Insulation Product Application Catalog

• FAA Advisory Circular AC 43.13-1B: Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair (Chapter 4: Structural Plastics & Insulation)

• No public-facing regulatory engineering blueprint or specific aviation certification test data sheets exist for this industrial part number sequence; dimensional verifications and core burn-rate criteria should be cross-referenced directly with Thermo-Tec's primary engineering support archives.