3M Impact Resistant Structural Adhesive, 57333, 450 ml DMS Cartridge, 2 per case

• 24-HOUR CURE TIME: Its one-day curing process can be accelerated with heat
• BONDING YOU CAN SEE: Colored formula dispenses silver before turning purple to indicate proper curing
• IMPACT RESISTANT: Delivers higher impact strength compared to traditional bonding adhesives
• LASTING CORROSION PROTECTION: Provides corrosion protection with a lifetime warranty
• LONG SHELF LIFE: Offers an excellent shelf life whether opened or unopened, helping to reduce unused product replacement costs
• VERSATILE METAL BONDING: Adheres to a wide variety of properly-prepared steel and aluminum substrates
• WELD OR RIVET: Ideal for either welding or riveting bonding within working time

3M Impact Resistant Structural Adhesive (IRSA) is formulated for true automotive OEM specified structural bonding applications, excellent for collision absorption in steel structures and advanced lightweight aluminum alloys. This two part epoxy adhesive delivers extended worktimes – up to 1 hour – and can be rapidly heat cured. The adhesive changes from silver to purple as the adhesive cures. A Structural Adhesive for Automotive Substrates Engineered to withstand much higher impact vs. traditional bonding adhesives, 3M Impact Resistant Structural Adhesive (IRSA) is excellent for true OEM-specified automotive structural applications. It adheres to properly prepared automotive substrates including mild steel, high-strength steel and automotive aluminum alloys — vital as OEMs strive to achieve high strength in increasingly lightweight structures. Two-part epoxy adhesive is recommended for all weld-bonded and rivet-bonded joints when specified by an OEM. It provides an extended work time — as long one hour — and cures rapidly with heat (30 minutes at 80°C/175°F). Adhesive applies in a silver color and changes to purple as it cures, indicating when the process has begun. Impact Resistance and More 3M IRSA is designed to absorb collision energy forces and delivers increased torsional rigidity for OEM-specified automotive structures. It allows for spot-welding (form squeeze-type) in an uncured state, typically up to three hours after application. Properly applied adhesive will seal joints completely, and perform when exposed to very hot and cold temperatures. Its corrosion inhibiting formula delivers lifetime corrosion protection. The cured adhesive can also help decrease NVH (PDF, 325.12 Kb) in the vehicle. 3M Impact Resistant Structural Adhesive is available in 200 mL cartridges for smaller jobs, and in 450 mL cartridges for use with the 3M Dynamic Mixing System. About the 3M Dynamic Mixing System With the Dynamic Mixing System (DMS), 3M has created a method for mixing adhesives, sealers and fillers that saves time and helps ensure the proper mixing of two-part formulas every time. The system includes pre-loaded DMS cartridges and a series of DMS mixing nozzles, and works with a standard pneumatic applicator. Instead of premeasuring and premixing two-part products, technicians dispense the perfect amount of material, directly to the job, at the touch of a trigger. This eliminates the messy mixing process, reduces material waste and cleanup time, and helps ensure the quality and performance of finished work. 3M Impact Resistant Structural Adhesive in 450 mL cartridges is ready to use with a purple 3M DMS Mixing Nozzle, PN 55847. 3M recommends dispensing the adhesive with the pneumatic 3M Dynamic Mixing Gun, PN 05846. Better Science for Better Adhesion from 3M Since 1925 when one of 3M lab assistants invented masking tape, 3M has been applying science to life —developing adhesive products and technologies that help individual businesses and entire industries. 3M Impact Resistant Structural Adhesive (IRSA) represents these decades of knowledge. And, with its formulation for long-term strength, torsional rigidity and corrosion protection even when used in lightweight aluminum alloy structures, it is very simply the right product at the right time for automotive collision repair.

Trusted 3M Impact Adhesive

The 3M Impact Resistant Structural Adhesive, model 57333, offers a reliable bonding solution designed for automotive structural needs. This 450 ml DMS Cartridge ensures consistent application with the 3M Dynamic Mixing System technology.

Its formulation targets collision absorption in steel and aluminum, making it ideal for OEM-specified repairs. The pack includes 2 cartridges per case, providing enough material for multiple jobs.

Visible Cure Color Change

This adhesive features a unique colored formula that dispenses silver and changes to purple as it cures. This visual cue helps users confirm proper curing without guesswork, improving application confidence.

The 450 ml cartridge size works seamlessly with the 3M DMS Mixing Nozzle, ensuring precise mixing and dispensing. This color change is a practical feature for quality control during automotive repairs.

High Impact Strength Bond

Designed for impact resistance, this 3M adhesive delivers higher strength compared to traditional bonding adhesives. It enhances torsional rigidity and absorbs collision forces effectively in automotive structures.

The 57333 model supports bonding on steel and aluminum substrates, making it versatile for various automotive materials. Its strength is critical for weld-bonded and rivet-bonded joints specified by OEMs.

Long Shelf Life Assurance

The 3M Impact Resistant Structural Adhesive offers a long shelf life whether the cartridge is opened or unopened. This reduces product waste and replacement costs, making it economical for repair shops.

Each 450 ml DMS Cartridge is designed to maintain performance over time, ensuring readiness when needed. The pack of 2 cartridges per case supports ongoing projects without frequent reordering.

Corrosion Protection Warranty

This adhesive provides lasting corrosion protection backed by a lifetime warranty. It seals joints completely, protecting automotive structures from rust and environmental damage over time.

Its corrosion-inhibiting formula is especially valuable for lightweight aluminum alloys and steel, supporting long-term durability. The 3M 57333 adhesive is a dependable choice for structural bonding with corrosion resistance.