Highly Durable Polyurethane PSA - SPUR+ PSA™ 3.0

SPUR+™ PSA 3.0: A Remarkably Durable Adhesive 

Momentive’s SPUR+™ PSA 3.0 is a high-performance adhesive that provides excellent adhesion performance even upon exposure to fuel, solvents, water, and elevated temperatures. Its primary application is on tapes or transfer films, but it may also be used as a contact adhesive applied with a roller or brush. 

SPUR+™ PSA 3.0 performs far superior to traditional rubber and acrylic pressure-sensitive adhesives. SPUR+™ PSA 3.0 can be applied using traditional PSA coating equipment and cured to thermally sensitive films to provide a highly tacky, chemically resistant, and weather-stable adhesive layer that bonds well to low-energy surfaces. SPUR+™ PSA 3.0 is the ideal pressure-sensitive adhesive for tapes and labels used in aerospace, automotive, medical, floor marking, and chemical labeling applications due to its outstanding resistance to solvents, moisture, and temperature. The features and benefits offered by SPUR+™ PSA 3.0 are listed below: 
  

• Useful over a wide temperature range up to 356°F 

• Resistant to gasoline, jet fuel, diesel, brake fluid, hydraulic fluid, xylene, acids, bases, and various other solvents 

• Good adhesion to polyolefins and other low-energy surfaces 

• Curable on thermally sensitive films 

• Resistant to UV and oxidation from weathering 

• Perfect balance of peel and tack 

• Compatible with fillers for cost reduction 

Where is SPUR+ PSA 3.0 Used?

SPUR+™ PSA 3.0 is the ideal pressure-sensitive adhesive for applications that require best-in-class solvent and chemical resistance. To highlight performance in harsh conditions, Momentive performed a comparative study with SPUR+™ PSA 3.0, a solvent acrylic adhesive, and a silicone adhesive. The chemical resistance of the three adhesives is summarized below. 

How to Apply SPUR+ PSA 3.0

SPUR+™ PSA 3.0 is packaged at a viscosity suitable for use with standard tape coating equipment. If the viscosity or solids content needs to be adjusted, the adhesive can be easily diluted with ethyl acetate, butyl acetate, MEK, MIBK, or other common solvents. SPUR+™ PSA 3.0 can be applied to the substrate with conventional tape coating techniques or by use of a brush or roller. Once applied, the solvent must be removed as part of the adhesive curing process. Curing can be done at ambient temperature, or if a more rapid cure is required, heat can be applied up to 150°C. Once cured, the adhesive can be bonded to the intended surface, or a release liner can be applied to protect the adhesive layer for future use. 

Conclusion 

Traditional solvent-based acrylic and silicone pressure-sensitive adhesives lack the durability required for industrial tape and label applications that encounter a high degree of exposure to harsh chemicals and solvents. SPUR+™ PSA 3.0 offers best-in-class resistance to chemicals and solvents and is characterized by an optimum balance of peel and tack, even on low-energy substrates. This makes it ideal for applications that require an adhesive to perform at a high level and withstand harsh chemicals. Click below to request a sample today.