3M 07333 Impact Resistant Structural Adhesive Liquid, 200 mL Cartridge, Silver-to-Purple Color??'Changing Epoxy
- 3M’s 07333 Impact Resistant Structural Adhesive is a two-part epoxy engineered for true OEM-specified structural bonding in automotive collision repair. With extended working time and heat-accelerated curing, it’s ideal for steel and aluminum frame components in dealerships and body shops.
- Features
- Higher impact strength versus traditional bonding adhesives
- Recommended by many OEMs
- Provides corrosion protection with lifetime warranty
- Room temperature curing (accelerated curing with heat)
- Can be weld bonded or rivet bonded within working time
- Adheres to a wide variety of properly prepared steel and aluminum substrates
- Dispenses silver, color changes to purple to indicate proper mixing and curing process has begun
- Has excellent shelf life opened or unopened, reducing unused product replacement costs
- Specifications
- Adhesive Type: Two-Part Epoxy
- Application: Structural Bonding
- Brand: 3M
- Color Family: Purple
- Consistency: Paste
- Container Size (Imperial): 6.76 fl oz (US)
- Container Size (Metric): 200 ml
- Container Type: Cartridge
- Cure Time: 24 hr
- Full Cure Time: 24 hr
- Handling Time: 5-10 Minutes
- Product Color: Purple
- Shelf Life in Months (From Date of Manufacture): 12
- Volume (Imperial): 6.75 fl oz
- Volume (Metric): 200 mL
- Work Time: 60 min
- Part Number 07333, 3M ID 60455083331, UPC 051131073333
- The Impact Resistant Structural Adhesive can also be referred to as IRSA structural epoxy, silver-to-purple heat cure adhesive, automotive frame bonding epoxy, 3M OEM structural adhesive, and 07333 epoxy cartridge.
3M is a world-renowned innovator in adhesives, abrasives, and automotive repair solutions. Their structural adhesive line meets OEM performance for strength, corrosion resistance, and impact absorption, earning trust in collision repair shops and manufacturing globally.
Q: Can this adhesive be applied and welded immediately in structural joints?
A: Yes. 07333 allows spot-welding or squeeze-type resistance spot welding through the uncured epoxy for up to three hours after application.
Q: How can I tell if the adhesive is curing correctly?
A: The bead dispenses silver and gradually turns purple to show proper curing has begun.
Q: What is the recommended cure time and process?
A: You have up to one hour of work time at room temperature; full cure occurs in 24 hours, or you can heat-cure at 80 °C (175 °F) for 30 minutes.
Q: On what substrates is this adhesive suitable?
A: It bonds well to properly prepared mild steel, high-strength steel, and automotive-grade aluminum
