US Chemical & Plastics
USC Long 'N Strong 23020 Body Filler Olive Drab 1 Quart Can
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Hazardous material · Liquid
Liquid hazmat ships ground-only via UPS/FedEx with a per-item carrier surcharge applied at checkout.
Shipping restrictions apply
Ground freight only (UPS/FedEx). Cannot ship via Air, USPS, or to PO boxes. APO/FPO addresses excluded.
WARNING: Cancer & Reproductive Harm
California Pro65 Warning: Cancer and Reproductive Harm
Tap for details → P65Warnings.ca.gov
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Overview
Built for the job.
Long 'N Strong™ long strand fiberglass filler is the super strong, long strand reinforcing compound that restores and repairs with extra long strands of fiberglass for maximum bonding power and unparalleled strength. Ideal for use on large repairs like rusted out metal, cracked or shattered fiberglass. Rust-proof and…
USC® Long 'N Strong™ 23020 Body Filler is a high-strength, two-part polyester filler supplied in a 1 qt olive-drab can. It is designed for structural repairs and panel shaping where maximum bond strength and durability are required.
The formulation offers low VOC emissions at 275 g/L and adheres to a wide range of substrates including ABS, aluminum, bare metal, concrete, fiberglass, plastics, SMC, steel, and wood. Typical flash time is 93.9 °F (34.4 °C), providing sufficient working time for complex repairs while ensuring rapid cure once mixed. Coverage rates are consistent across the listed materials, delivering a reliable fill without excessive buildup.
Handling requires standard PPE: eye protection, chemical-resistant gloves, protective clothing, and a respirator in well-ventilated areas. The product is classified with multiple GHS hazards (acute toxicity, aspiration, carcinogen, etc.), so follow the SDS guidance for first aid and spill response.
Why Pros Choose US Chemical & Plastics USC
- Super strong long strand reinforcing compound to restore and repair surfaces
- Extra long strands of fiberglass for maximum bonding delivery unparalleled strength and durability
- Can be used to repair cracks and holes in fiberglass
- Can be used on welded areas and to bond seams (automotive and marine applications)
- 2% by weight (50:1 ratio) with supplied cream hardener
How to Use
For used on metal, aluminum, fiberglass, wood, masonry and concrete
Compatibility
Compatible substrates: Fiberglass, Body Filler.
Specifications
| Part No. | 23020 |
|---|---|
| Product Line | USC |
| MFR Model | 23020 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm | GHS Hazard | OSHA 29 CFR 1910.1200 |
| Application | For used on metal, aluminum, fiberglass, wood, masonry and concrete |
| Manufacturer | US Chemical & Plastics |
| Trade Mark | Long 'N Strong™ |
| UPC | 037307230205 |
| Brand | USC® |
| Color | Olive Drab |
| Mixing Ratio | 50:1 |
| Form | Liquid |
| Container Type | Can |
- VOC (packaged)
- 275 g/L
- Compatible Substrates
- ABS, aluminum, bare metal, concrete, fiberglass, plastic, SMC, steel, wood
About US Chemical & Plastics
US Chemical & Plastics 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 apply USC® Long 'N Strong™ 23020 Body Filler to?
The filler is compatible with ABS, aluminum, bare metal, concrete, fiberglass, plastic, SMC, steel, and wood.
What personal protective equipment (PPE) is required when handling this product?
Use eye protection, chemical-resistant gloves, protective clothing, and a respirator as indicated on the safety data sheet.
Is USC® Long 'N Strong™ 23020 flammable?
The product has an estimated flash point of 93.9 °F (34.4 °C), indicating it is classified as flammable.
Documents & Safety
Warning - Use protective eyewear, chemical-resistant gloves, coveralls or other protective clothing, and a suitable respirator when handling this filler. The material is toxic if inhaled or swallowed, can cause severe skin burns and eye injury, is flammable, and poses environmental hazards to water life. It also contains substances classified as carcinogenic and harmful to reproductive health. 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 support@autofxmart.com.
How to apply
Steps
1Sand to bare metal and clean the repair.
2Mix filler and hardener to one uniform color.
3Spread thin layers within the work time.
4Let set, then block-sand through the grits.
5Prime before applying topcoat.
Specifications
Full data
Frequently asked
Good to know
US Chemical & Plastics USC is compatible with Fiberglass, Body Filler. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
US Chemical & Plastics USC uses a mix ratio of 50:1. Always measure activators and reducers accurately to maintain film properties and pot life — deviating from the ratio can cause adhesion or curing problems.
Most in-stock orders for US Chemical & Plastics USC ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Yes. autofxmart is an authorized distributor of US Chemical & Plastics products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
The MPN for US Chemical & Plastics USC is 23020. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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