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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 thermal 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 around the exhaust tunnel in any vehicle.
- 0.5 inch thick hydrophobic melamine foam with an aluminum foil-faced composite bonded on top
- Lightweight, flexible, and water resistant
- Reflects 98% of radiant energy
- Each sheet is 24” x 48” (8 Sq Ft) and weighs about 1/4 of a pound
- Thermal range: -40 F to 1000 F
- Resists organic solvents, odor free, and meets smoke, fire, and toxicity standards
- Aerospace grade product
- Made in Germany with hydrophobic process completed in the USA
Product Usage
- 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.
Recommended 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.
| Flammability Ratings: | Description: | Rating: |
| UL 94 HF-1 | Horizontal Burning | Pass |
| UL 94 V-0 | Vertical Burning | Pass |
| 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, BSS7238 | Smoke Generation |
Flaming: Ds (1.5 min) = 57 Ds (4.0 min) = 77 |
| BSS7239 | Toxicity | Pass |
| ASTM E 84 | Steiner Tunnel, 1inch thick |
Flame Spread < 25 Smoke Developed < 50 |
| ASTM E 162-83 | Surface 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 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 |
| Shipping | Most items ship within 1–3 business days. Delivery time varies by item, vendor, and destination. |
Need help before ordering? Contact Droppin HZ and we can help confirm fitment, power needs, or supporting gear for your build.
Description
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 thermal 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 around the exhaust tunnel in any vehicle.
- 0.5 inch thick hydrophobic melamine foam with an aluminum foil-faced composite bonded on top
- Lightweight, flexible, and water resistant
- Reflects 98% of radiant energy
- Each sheet is 24” x 48” (8 Sq Ft) and weighs about 1/4 of a pound
- Thermal range: -40 F to 1000 F
- Resists organic solvents, odor free, and meets smoke, fire, and toxicity standards
- Aerospace grade product
- Made in Germany with hydrophobic process completed in the USA
Product Usage
- 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.
Recommended 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.
| Flammability Ratings: | Description: | Rating: |
| UL 94 HF-1 | Horizontal Burning | Pass |
| UL 94 V-0 | Vertical Burning | Pass |
| 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, BSS7238 | Smoke Generation |
Flaming: Ds (1.5 min) = 57 Ds (4.0 min) = 77 |
| BSS7239 | Toxicity | Pass |
| ASTM E 84 | Steiner Tunnel, 1inch thick |
Flame Spread < 25 Smoke Developed < 50 |
| ASTM E 162-83 | Surface 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 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 |
Shipping
| Shipping | Most items ship within 1–3 business days. Delivery time varies by item, vendor, and destination. |
Need help before ordering? Contact Droppin HZ and we can help confirm fitment, power needs, or supporting gear for your build.
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