Built for the job.
Fusor® 121/124 flexible foam is a two-component, urethane-based foam used for sound deadening and sealing/filling of voids in the vehicle where air and wind noise would enter the cabin of the vehicle, along with the gas tank filler area.
Fusor® 124 is a two-part super fast flexible foam designed for rapid structural repairs and fill applications in automotive bodywork. The low-viscosity mixture expands to seal gaps, bond panels, and provide a durable, resilient substrate ready for downstream finishing.
At 70 °F (21 °C) the formulation offers a work time of only 10 seconds and reaches full cure in 1 hour, minimizing shop turnaround. It adheres effectively to ABS, aluminum, OEM-coated surfaces, primer, and steel, delivering consistent coverage without sagging. The fast flash time supports high-volume production while maintaining flexibility after cure.
Because the product is classified as “Danger” with acute toxicity, carcinogenicity, and skin corrosivity hazards, technicians must wear eye protection, chemical-resistant gloves, protective clothing, and a respirator in well-ventilated areas. Follow standard first-aid procedures for inhalation, skin, eye, or ingestion exposure.
Why Pros Choose LORD Fusor Adhesives 2-Part, Super Fast
- Versatile expands to ten times its size, retains memory with no shrinkage
- Excellent appearance matches OEM sound deadening foams
- Environmentally resistant will not absorb moisture or cause corrosion
How to Use
For sound deadening, sealing/filling of door skins to crash bar, hood panel to supports, trunk panel to supports and gas tank filler area
- Clean the substrate (ABS, aluminum, OEM, primer-coated steel) to remove oil, dust, and loose material; ensure a dry surface.
- Dispense equal amounts of the two cartridge components into a clean mixing cup and stir until a uniform black foam is achieved. The mixture must be used within the 10-second work time at 70 °F (21 °C).
- Apply the mixed foam in a single, continuous coat to the prepared area using a suitable applicator (e.g., spatula or dispensing tip). Do not exceed the 10-second working window.
- Allow the foam to cure for 1 hour at 70 °F (21 °C) before handling or applying additional layers.
- If removal of excess material is required, clean uncured foam with a compatible solvent such as acetone; cured foam must be mechanically removed.
Compatibility
Compatible paint systems: Urethane.
Specifications
| Part No. | 124 |
|---|---|
| Product Line | FUS |
| MFR Model | 80849810011 |
| Standard/Approvals | GHS Hazard |
| Application | For sound deadening, sealing/filling of door skins to crash bar, hood panel to supports, trunk panel to supports and gas tank filler area |
| Manufacturer | LORD Fusor Adhesives |
| UPC | 80849810011 |
| Brand | Fusor® |
| Applicable Materials | 2K Primer, Urethane 2K Chemistry |
| Composition | 1 to 5% Amine Catalyst, 1 to 5% Tin Catalyst (Part A), 30 to 35% 4,4′-Diphenylmethane Diisocyanate, 20 to 25% 2,2,4-Trimethyl-1,3-Pentanediol Diisobutyrate, 10 to 15% Diphenylmethane Diisocyanate, 5 to 10% Aromatic Polyisocyanate (Part B) |
| Application Time | 10 s at 70 deg F |
| Component | 2K |
| Odor/Scent | Aromatic |
| Color | Black |
| Flash Point | 201 deg F |
| Container Size (oz) | 1.7 |
| Container Type | Cartridge |
| Form | Liquid |
| Type | 2-Part, Super Fast |
| Curing Time | 1 hr at 70 deg F |
- Cure Time
- 1 hr @ 70 °F (21 °C)
- Work Time
- 10 sec @ 70 °F (21 °C)
- Compatible Substrates
- ABS, aluminum, OEM, primer, steel
About LORD Fusor Adhesives
LORD Fusor Adhesives is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America.
Frequently Asked Questions
What substrates can I bond with Fusor® 124?
It is approved for ABS, aluminum, OEM-finished parts, primed surfaces, and steel.
How long does it take to cure?
The adhesive reaches full cure in 1 hour at 70 °F (21 °C).
What personal protective equipment is required when using this product?
Wear eye protection, chemical-resistant gloves, protective clothing, and a respirator as recommended in the SDS.
Documents & Safety
- Safety Data Sheet (SDS)
- fusor_517_catalog.pdf
- fusor_121_specification_sheet.pdf
- Fusor_100EZ_Catalog.pdf
Danger – This foam is highly toxic if inhaled, can cause severe eye injury, skin burns, and systemic organ damage. It is classified as a carcinogen, reproductive toxin, respiratory irritant, aquatic pollutant, and oxidizer. Required personal protective equipment includes safety goggles or face shield, chemical-resistant gloves, protective clothing (coveralls), and a suitable respirator with appropriate cartridges. Use only in well-ventilated areas and avoid any skin or eye contact. Always refer to the full SDS before use.
Why Buy from autofxmart
- Authorized distributor — authentic, factory-fresh stock.
- Fast US shipping — most orders ship within 1 business day.
- 30-day returns — buy with confidence.
- Pro-shop pricing — bulk discounts available on request.
- Expert support — questions? Email us at [email protected].
