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Mega'Block Thermal & Sound Insulator

Mega'Block

R 1,450.00

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A monster in blocking heat and sound - this is an aluminum foil-faced fiberglass fabric composite on top of Mega’Zorbe hydrophobic melamine foam.

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Mega’Block Hydrophobic Melamine Heat Shield (Peel & Stick) is an aluminum foil-faced fiberglass fabric composite on top of Mega’Zorbe hydrophobic melamine foam. Specifically designed to reflect radiant heat while offering excellent sound absorbing attributes utilizing an easy peel and stick application. Mega’Block hydrophobic melamine heat shield is an enhanced version of melamine foam with exceptional water-resistance properties maintaining all other key attributes for sound deadening. The open cell surface allows sound waves to penetrate the foam and not reflect as an echo. It is recommended for both acoustical and thermal insulation in aircraft, aerospace, marine, automotive, and architectural applications. Mega'Block's foam is resistant to most organic solvents and is an aerospace grade product.

Typical uses include: engine side of firewall or hood, exhaust tunnel, transmission tunnel, under seat or above engine on ATV/jet ski/snowmobile. (Product should be installed at-least 2” from the heat source. Foil tape Is recommended on the edges to protect the foam)

Mega’Zorbe is designed and manufactured in Germany with the proprietary hydrophobic process being completed in the USA. Mega'Zorbe melamine foam is eco-friendly, produced without using halogenated hydrocarbons and/or toxic heavy metal flame retardants. (*Nitrogen is used to create flame resistance). The products light weight characteristic reduces weight contributing to energy savings thus reducing emissions. 

  • Extremely thin heat shield (0.035") and lightweight (2.3 oz/ft²) on 1/2" Hydrophobic Melamine Foam
  • Easy Peel and Stick application with high heat adhesive 
  • Temperature up to 1000°F in localized areas within a larger area of material
  • Highly polished foil reflects 98% of radiant energy
  • Extremely durable. lightweight and flexible


Mega'Block Hydrophobic Melamine Foam Characteristics:
Density: ASTM D-3574 0.56 lbs/ft³ +/- 15%
Tensile Strength: ASTM D-3574 15 lbs/in2, min
Elongation: ASTM D-3574 39 % nominal
Compression Set: ASTM D-3574 10 %, max
Indentation Force Deflection: ASTM D-3574 90 lbs/50 in2, max
Thermal Conductivity: ASTM C-518 0.24 BTU-in/ft²-hr-°F at 75°F
Temperature Range: -300°F to +356°F, intermittent to +400°F
Water Absorption: ASTM D2842, B <1.5% after 15 mins <4% after 96 hrs

Flammability Ratings:Description:  Rating:
UL 94 HF-1Horizontal BurningPass
UL 94 V-0Vertical BurningPass
FAR 25.853 (a, i)60 Sec Vertical

Burn Time (Avg): 0 Seconds
Burn Length (Avg): 2”
Drip Extinguish Time: No Drip

FAR 25.856, BSS7365, AITM 2.0053 Radiant Panel 

After Flame: 0 Seconds
Flame Propagation: < 1”

ASTM 662-83, BSS7238Smoke Generation

Flaming: Ds (1.5 min) = 57 
Ds (4.0 min) = 77 

BSS7239                                    Toxicity                                    Pass
ASTM E 84Steiner Tunnel, 1inch thick

Flame Spread < 25

Smoke Developed < 50

ASTM E 162-83Surface Flammability

Flame Spread factor 1.83
Heat Evolution factor 2.50
Flame Spread index 4.62 

DIN 5510 

Flammability: S4
Smoke: SR2
Drips: ST2

 Foil Heat Shield Characteristics:

Base Fabric Type:Plain Weave Fiberglass 
Aluminum Foil thickness: 0.001 inches 
Composite Characteristics: 
Thickness (ASTM-D1777-96): 0.02” (Nominal) 
Weight (ASTM-D-3776-96): *0.1225 lb/sft (Typical) 
Tensile Strength:(ASTM-D-5035-95): Warp-75 lb/in 
 Fill- 50 lb/in 
Flame Resistance (FED 191/5903-2):  
Flame Out 1 sec max
Afterglow1 sec max
Char Length 1 inch max 
Temperature Range: 
Composite**-40°F to 1,000°F
*Total weight with PSA 
** Upper temperature limit is reliant upon a finished part being larger than the surface area exposed to 1000°F and a minimum of 1” space between the heat shield and the heat source

PSA Temperature Range: -40°F to 450°F

  • Sheet Width 61cm
  • Sheet Length 122cm
  • Sheet Thickness 1.2cm
  • Coverage 0.743m²
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