US Chemical & Plastics
USC 77702 SMC/Fiberglass Filler - 8 oz Gray-Green Liquid Pouch
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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.
USC® Garage SMC/fiberglass filler pouch is formulated for use and is compatible with SMC substrates. It has excellent adhesion to SMC, as well as steel and standard fiberglass, and is exceptionally easy to apply and sand. It provides the performance needed to repair and refinish products manufactured in the SMC…
USC® 77702 SMC/Fiberglass Filler is an 8 oz liquid filler formulated for repairing and shaping SMC, fiberglass, and other composite panels. Its gray-green pigment provides a neutral base for subsequent sanding and painting in body shop applications.
The filler adheres to a wide range of substrates-including ABS, aluminum, concrete, plastic, steel, wood, and SMC-offering versatile repair capability. With a VOC content of 242 g/L, it meets typical environmental regulations while delivering consistent fill performance across the listed materials. Coverage is optimized for small-to-medium repairs, allowing efficient material usage.
Because the formulation is classified with multiple GHS hazards (acute toxicity, aspiration hazard, carcinogen, eye damage, flammable, organ toxicity, oxidizer, reproductive and respiratory toxicity, skin corrosion), use requires full PPE: eye protection, chemical-resistant gloves, protective clothing, and a respirator. Operate in a well-ventilated area and follow the first-aid procedures outlined in the SDS.
Why Pros Choose US Chemical & Plastics USC
- A waterproof filler, structurally rated to repair sheet molding compound and works on fiberglass
- It's also easier to sand than conventional fiberglass fillers
How to Use
For metal, aluminum and steel substrates
Compatibility
Compatible substrates: Steel, Fiberglass, SMC.
Specifications
| Part No. | 77702 |
|---|---|
| Product Line | USC |
| MFR Model | 77702 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm | GHS Hazard | OSHA 29 CFR 1910.1200 |
| Application | For metal, aluminum and steel substrates |
| Manufacturer | US Chemical & Plastics |
| UPC | 037307777021 |
| Brand | USC® |
| Color | Gray/Green |
| Mixing Ratio | 1-1/2 in Ribbon of Hardener or 2% By Weight |
| Form | Liquid |
| Container Type | Pouch |
| Container Size (oz) | 8 |
- VOC
- 242 g/L
- Compatible Substrates
- ABS, Aluminum, 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® 77702 SMC/Fiberglass Filler to?
The filler is compatible with ABS, aluminum, 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 recommended by the SDS.
What is the VOC content of USC® 77702 filler?
The product contains 242 g/L of volatile organic compounds (VOC).
Documents & Safety
Signal word: Warning.
PPE required: wear safety glasses or goggles, chemical-resistant gloves, protective clothing (coveralls), and a suitable respirator when handling the product.
This filler is toxic if inhaled or swallowed, can cause serious eye injury, skin corrosion, respiratory irritation, and may be carcinogenic. It is also flammable and acts as an oxidizer, so keep it away from open flames and heat sources.
Always refer to the full SDS before use.
PPE required: wear safety glasses or goggles, chemical-resistant gloves, protective clothing (coveralls), and a suitable respirator when handling the product.
This filler is toxic if inhaled or swallowed, can cause serious eye injury, skin corrosion, respiratory irritation, and may be carcinogenic. It is also flammable and acts as an oxidizer, so keep it away from open flames and heat sources.
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 Steel, Fiberglass, SMC. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
This listing ships US Chemical & Plastics USC in a 8 container. Check the autofxmart catalog for other sizes and bulk pricing.
US Chemical & Plastics USC uses a mix ratio of 1-1/2 in Ribbon of Hardener or 2% By Weight. 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.
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