Mega Block ™ - Hydrophobic Foam Heat Shield
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Mega Block™ - Hydrophobic Foam + Heat Shield
Keep your cabin cool with Mega Block™, specifically designed to be a best-in-class heat shield by combining an aluminum reflective barrier with the excellent automotive heat insulation attributes of melamine foam. Mega Block™ is hydrophobic, lightweight, and flexible while reflecting 98% of radiant heat energy. Use it on the engine side of the firewall, as hood insulation, or any vehicle needing heat control including engine compartment insulation for your boat.
Features
- 1/2" inch thick hydrophobic melamine foam with an aluminum foil-faced composite bonded on top
- Lightweight, flexible, water resistant, and Class A fire rated
- Reflects 98% of radiant energy
- Each sheet is 24” x 24” x 1/2" (4 Sq Ft) and weighs about 0.50 lb per sheet
- Resists organic solvents, odor free, and meets smoke, fire, and toxicity standards
- Aerospace grade foam and heat shield (R-value per inch: 4.16)
- Made in Germany with hydrophobic process completed in the USA
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Specs
Specs
| Dimensions | 24" x 24" |
| Thickness | 1/2", 1" |
| Weight | 0.8 lbs (1/2"), 1 lb (1") |
| Temperature Range (adhesive backing) | -40°F to 400°F |
| Thermal Range | -40 F to 1000°F |
| Thermal Insulation (R-value) | 4.16 |
| Custom Sizes and Thicknesses | Yes, call 1-800-679-8511 for details |
Material Testing
Material Testing
| Tested Property | Testing Method | Performance |
| Horizontal Burning | UL 94 HF-1 | Pass |
| Vertical Burning | UL 94 V-0 | Pass |
| 60 Sec Vertical | FAR 25.853 (a, i) | Burn Time (Avg): 0 Seconds Burn Length (Avg): 2” Drip Extinguish Time: No Drip |
| Radiant Panel | FAR 25.856 BSS7365 AITM 2.0053 | After Flame: 0 Seconds Flame Propagation: < 1” |
| Smoke Generation | ASTM 662-83 BSS7238 | Flaming: Ds (1.5 min) = 57 Ds (4.0 min) = 77 |
| Toxicity | BSS7239 | Pass |
| VOCs | ISO 16000 parts -3, -6, -9, -11 | "A" Rating |
| Steiner Tunnel, 1inch thick | ASTM E 84 | Flame Spread < 25 Smoke Developed < 50 |
| Surface Flammability | ASTM E 162-83 | Flame Spread factor 1.83 Heat Evolution factor 2.50 Flame Spread index 4.62 |
| Railway Fire Classification | DIN 5510 | Flammability: S4 Smoke: SR2 Drips: ST2 |
Foil Heat Shield Specifications
| 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 |
| Afterglow | 1 sec max |
| Char Length | 1 inch max |
| Temperature Range: | |
| Composite | *-40°F to 1,000°F |
| 1000°F requires 2” between the heat shield and the heat source | *PSA Temperature Range: -40°F to 450°F |
Noise Reduction Coefficient
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC |
| Mega Block 1/2" | 0.11 | 0.12 | 0.25 | 0.42 | 0.77 | 0.94 | 0.40 |
| Mega Block 1" | 0.18 | 0.23 | 0.50 | 0.82 | 0.99 | 0.99 | 0.65 |
Installation Instructions
Installation Instructions
- Mega Block™ comes with a peel and stick backing. To install Mega Block™, simply peel and stick!
- Install locations:
- Hood - cover entire lid with foil facing the engine
- Firewall - engine side
- For rear-engine design layouts, apply to the vehicle's back wall.
Common Product Uses
Common Product Uses
- Always face foil side of the product towards the heat source
- Easy to apply with our peel & stick adhesive backing. You need to apply enough pressure for your fingers to "feel" the adhesive bonding to the metal surface.
- Install at least 2” from the heat source. We recommend foil insulation tape on the edges to protect the foam.
- Used in non-automotive locations as well, like generator boxes or a soundproof server rack
Aerospace Approved
Lightweight
Radiant Barrier
Thermal Insulation
Vehicle Square Footage Calculator
How Much Mega Block ™ - Hydrophobic Foam Heat Shield Do I Need?
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