Dual-Mix™ Multi-purpose panel adhesive is a two-component epoxy for panel bonding of steel, aluminum, SMC and fiberglass. Dual‑Mix™ 39747 is a 2‑component, black liquid panel adhesive designed for high‑strength bonding of sheet metal, fiberglass, and OEM panels in collision repair. The 7 oz cartridge delivers a 3/8″‑diameter bead that covers approximately 115 in², making it suitable for both structural repairs and trim attachment. At 70 °F (21 °C) the adhesive provides a 90‑minute work window before the pot life ends, and reaches full cure in 24 hours. It adheres to a wide range of substrates—including aluminum, steel, bare metal, fiberglass, primer, and SMC—allowing flexibility across body shop applications. The formulation’s flash point of 95 °C supports safe handling under typical shop conditions. Due to its acute toxicity, carcinogenicity, and skin‑corrosive properties, proper PPE is mandatory: eye protection, gloves, protective clothing, and a respirator. Use in a well‑ventilated area and follow the H‑statements (H302, H314, H317, H318, H335, H341, H351, H371) for safe handling and cleanup. Why Pros Choose SEM Multi-Purpose 2-Component Dual-Mix™ forever warranty OEM recommended Long working time Exceptional impact and peel strength Excellent corrosion resistance Spacer beads for consistent bond line thickness Non-sag formula Simple surface preparation How to Use For MIG or STRSW welding Clean and degrease the substrate (aluminum, steel, fiberglass, OEM, primer, SMC) to ensure a contaminant‑free surface. Mix the two components according to the manufacturer’s specified ratio (refer to the TDS for exact proportion). The mixed adhesive has a work time of 90 minutes at 70 °F (21 °C). Apply a 3/8‑inch diameter bead to the joint, using a dispensing gun or spatula. One bead provides approximately 115 in² of coverage. Position the panels and press together; allow the adhesive to set for the remaining work time. Do not disturb the joint. After the initial set, allow the assembly to cure for 24 hours at 70 °F (21 °C) before handling or load application. Clean any excess adhesive from the work area while the adhesive is still wet, using a suitable solvent as recommended in the TDS. Compatibility Compatible substrates: Steel, Aluminum, Fiberglass, SMC. Compatible paint systems: Epoxy. Specifications Technical specifications for Dual-Mix™ 39747 Multi-Purpose 2-Component Panel Adhesive, 7 oz Cartridge, Liquid, Black, 90 min Application Part No. 39747 Product Line SEM MFR Model 39747 Standard/Approvals GHS05 | GHS07 | GHS08 | OSHA HCS Hazard | OEM Approved | California PROP65 Warning: Cancer and Reproductive Harm Application For MIG or STRSW welding Manufacturer SEM UPC 646786397479 Brand Dual-Mix™ Maximum Sale Quantity 6 Maximum Sale Day 7 Applicable Materials Steel, Aluminum, SMC/Fiberglass Composition 13 to 30% Bisphenola(chloro)oxirane Polymer, 10 to 13% Nepheline Syenite, =7 to
