3M 8243 – Automix SMC/Fiberglass Repair Adhesive (200 mL)
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Orders ship same or next business day. Free shipping on orders over $50. Orders under $50 ship for a $10 flat rate. Priority shipping available at checkout for $20.
Product Description
3M 8243 Automix SMC/Fiberglass Repair Adhesive (200 mL) is a professional-grade two-part adhesive formulated for repairing and bonding Sheet Molding Compound (SMC) and fiberglass-reinforced plastic components in automotive collision repair and refinishing applications. Designed for structural and cosmetic repairs, this adhesive delivers strong, durable bonds while restoring integrity to damaged composite panels.
Engineered with 3M Automix technology, 8243 ensures accurate mixing and consistent application for reliable repair performance. Its high-strength formulation resists vibration, stress, and environmental exposure, making it ideal for repairing cracks, holes, and damage in SMC and fiberglass body panels when used according to OEM and 3M repair guidelines.
Key Features
- 200 mL Automix Cartridge: Ensures precise mixing and consistent application
- SMC & Fiberglass Repair Adhesive: Specifically formulated for composite automotive materials
- High Bond Strength: Restores structural integrity and durability to damaged panels
- Structural & Cosmetic Repairs: Suitable for both strength-critical and appearance-focused repairs
- Resistant to Stress & Vibration: Maintains bond performance under demanding conditions
- Professional Grade: Trusted by collision repair and automotive refinishing professionals
Technical Specifications
| Part Number | 8243 |
| Color | Gray |
| Size | 6.8 oz |
| Weight | 0.6 lbs |
| Application | SMC repair, fiberglass repair, composite panel repair |
| Shelf Life | 1 year from manufacture date |
| Country of Origin | USA |
| SKU | 3M-8243 |
| Brand | 3M |
| Product Type | Adhesive |
Shipping & Returns
Shipping
- Orders ship same or next business day
- Free shipping on all orders over $50
- $10 flat rate shipping on orders under $50
- Priority shipping available for $20
Returns
- 30-day return policy on unused, unopened items
- Contact our support team to initiate a return
- Refund issued within 5 business days of receiving the return
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