TEROSON® SB PL605-4

• Excellent resistance to chemicals and water
• High strength at room temperature and elevated temperatures

• Friction materials (brakes, clutches, etc.) to metal
• Aluminum, steel, and other metals to themselves and each other

Surface Preparation
Clean surfaces to be bonded. Metal should be degreased and grit- blasted.

Application to Part
Apply TEROSON SB PL605-4 (known as TEROSON PL605-4) to friction surfaces to be bonded. The dry film thickness should be 0.008 - 0.015 inches (0.20 - 0.38mm) (25-45 mil wet 0.635 - 1.14mm), depending upon the coverage pattern used. Consult Henkel’s friction bonding manual for details. After final coat has been applied, allow to dry 24 hours before bonding or allow to dry 10 minutes and prebake at 180°-190°F (82°-87°C) for 30 minutes before bonding. Adhesive MUST be fully dried before bonding. The following points about drying should be kept in mind:

• Adhesive patterns having the greatest surface area will dry the best.
• The solvent evaporation rate from a heavy adhesive coating is much slower.
• Humidity affects solvent evaporation rates. This can cause a drying problem during summer months. Normal drying cycles may require seasonal adjustments to provide adequate drying.
• The adhesive will dry faster on soft lining and slower on hard linings due to solvent escape through the lining.

Anvil-type bonding equipment includes the pressure jig and heating element in one unit. It heats the metal shoe and has a pressure device as part of the unit. After removal from the jigs or anvils, the lining should be allowed to cool before pack for shipment. Further details for properly curing the adhesive can be found in the Friction Bonding Manual.

• The viscosity of these products will be thixotropic, that is, the viscosity will grow over time.
• It may be necessary to add a small amount of solvent to adjust the viscosity of aged material to achieve the original viscosity.
• TEROSON® SB PL605-4 (known as TEROSON® PL605-4): 29% minimum total solids - Roll Coat, Spray, Brush Grade

• TEROSON® SB PL605-4 (known as TEROSON® PL605-4), when stored in the liquid form, will meet the adhesion requirements of Henkel Corporation’s specifications after 18 months of storage in the temperature range of 40° - 60°F (4° -16°C).
• It may be necessary to add a small amount of solvent to adjust the viscosity of aged material.
• If TEROSON® SB PL605-4 (known as TEROSON® PL605-4) is stored at 61° - 80°F (16° -26°C), we recommend it be used within 90 days.
• TEROSON SB PL605-4 (known as TEROSON® PL605-4) should not be stored at temperatures above 95°F (35°C).
• Parts coated with TEROSON® SB PL605-4 (known as TEROSON® PL605-4) may be stored an additional 6 months at temperatures below 95°F (35°C) before bonding.
• It is necessary to protect the adhesive surface from contamination during this storage period.