Built for the job.
USC® Fiberglass Resin is a premium-grade polyester resin. It is designed for use with fiberglass mat or cloth to repair and restore as well as create custom molded automotive designs. USC® Fiberglass Resin is fast curing, tack-free, waterproof and impact-resistant. Its heavy formula wets out mat and cloth quickly and…
USC® 58020 Fiberglass Resin is a one-gallon amber liquid resin formulated for high-performance fiberglass lay-up, structural repairs, and composite fabrication in automotive body shops. It bonds to a wide range of substrates including aluminum, bare metal, steel, wood, plastic, polyester, and primer, making it suitable for mixed-material repairs.
The resin’s low viscosity provides excellent wetting and penetration, ensuring uniform coverage across complex shapes. With a VOC content of 402 g/L, it meets stringent environmental regulations while delivering the strength and durability required for load-bearing applications. The estimated flash point of 93.9 °F (34.4 °C) indicates moderate flammability, so proper storage away from ignition sources is essential.
Safety precautions are critical: use eye protection, chemical-resistant gloves, protective clothing, and a respirator in well-ventilated areas. The product carries a “Warning” signal word and multiple GHS hazard classifications, including acute toxicity, carcinogenicity, and skin corrosion. Follow standard first-aid procedures for inhalation, ingestion, or skin contact.
Why Pros Choose US Chemical & Plastics USC
- Thicker viscosity for less running and sagging, expect improved wetting and fast curing
- Rebuild and repair cracks, holes, splits, tears and other damage in fiberglass, ideal for custom molding
How to Use
For used on fiberglass, metal, wood, gel coated polyester and epoxy
Compatibility
Compatible substrates: Fiberglass.
Compatible paint systems: Polyester.
Specifications
| Part No. | 58020 |
|---|---|
| Product Line | USC |
| MFR Model | 58020 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm | GHS Hazard | OSHA 29 CFR 1910.1200 |
| Application | For used on fiberglass, metal, wood, gel coated polyester and epoxy |
| Manufacturer | US Chemical & Plastics |
| UPC | 037307580201 |
| Brand | USC® |
| Maximum Sale Quantity | 4 |
| Maximum Sale Day | 7 |
| Color | Amber |
| Mixing Ratio | 14 Drops of Liquid Hardener to 1 oz of Fiberglass Resin |
| Container Size (gal) | 1 |
| Form | Liquid |
| Container Type | Can |
- VOC
- 402 g/L
- Compatible Substrates
- Aluminum, Bare metal, Fiberglass, Plastic, Polyester, Primer, 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 USC® 58020 Fiberglass Resin be applied to?
It is compatible with aluminum, bare metal, fiberglass, plastic, polyester, primer, steel and wood.
What personal protective equipment (PPE) is required when handling this resin?
Use eye protection, chemical-resistant gloves, protective clothing and a respirator as recommended in the SDS.
What are the key safety hazards associated with USC® 58020?
The product is classified with a “Warning” signal word and carries GHS hazards for acute toxicity, aquatic toxicity, aspiration hazard, carcinogenicity, eye damage, flammability, organ toxicity, reproductive toxicity, respiratory irritation, and skin corrosion.
What is the flash point of this resin?
The estimated flash point is 93.9 °F (34.4 °C).
What is the VOC content of USC® 58020 Fiberglass Resin?
The product contains 402 g/L of volatile organic compounds.
Documents & Safety
- Safety Data Sheet (SDS)
- usc_58015_specification_sheet.pdf
- USC_58015Q01_Specification_Sheet.pdf
Warning – This fiberglass resin is toxic by inhalation and ingestion, can cause severe skin burns and eye injury, is flammable, and poses long-term health risks such as carcinogenic and reproductive effects. Use safety glasses or a face shield, chemical-resistant gloves, protective clothing (coveralls), and a suitable respirator when handling. The material is also hazardous to aquatic life. 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].
