Permabond TA439 two-component Toughened Acrylic Adhesive
Permabond TA439 is a two-component, toughened acrylic adhesive for bonding metals, ferrites, ceramics and some plastics. This adhesive has high shear and peel strength. Permabond TA439 has a fast cure at room temperature and a typical fixture time of 20-40 seconds. This adhesive is methacrylic acid-free making it suitable for sensitive components in sealed electric motors. Initiator 41 can be used with Permabond TA439 or Initiator 43 can be used when bonding plastics. Features No mix application Fast cure at room temperature High shear and peel strength Good impact strength Good chemical resistance Non-corrosive formulation Table of Surface Activated Acrylic Adhesives, And the related Initiator Number that pairs with them Grade TA430 and Initiator 41 or Initiator 41M TA435 and Initiator 41 or Initiator 41M TA436 and Initiator 43 TA437 and Initiator 41 or Initiator 41M TA439 and Initiator 41 or Initiator 41M* TA4590 and Initiator 44 TA4246 and Initiator 46 Color Amber Amber Amber Orange Amber Blue Amber Feature General Purpose High Peel Strength High Temp Anaerobic Cure Acid Free Acid Free MMA - very high strength Visc. cP 2.5 rpm 50,000 70,000 60,000 130,000 - 90,000 - Visc. cP 20 rpm 20,000 30,000 25,000 40,000 1000 20,000 28,000 Specific Gravity 1.1 1.0 1.1 1.1 1.0 1.1 1.0 Gap Fill inch (mm) 0.02 (0.51) 0.02 (0.51) 0.02 (0.51) 0.02 (0.51) 0.006 (0.15) 0.02 (0.51) 0.02 (0.51) Handling Time 3 - 5 min 3 - 5 min 1 - 3 min 1 - 3 min 15 - 20 min** 40 - 75 sec 30 - 60 sec 2 - 4 min Working Strength 40 - 60 min 30 - 60 min 30 - 60 min 30 - 60 min 60 - 120 min** 3 - 5 min 2 - 3 min 15 - 30 min Full Cure 24 hr 24 hr 24 hr 24 hr 24 hr 24 hr 24 hr Impact Strength 10 - 15 kJ/m2 10 - 15 kJ/m2 10 - 15 kJ/m2 10 - 15 kJ/m2 10 - 20 kJ/m2 15 - 20 kJ/m2 50 - 60 kJ/m2 Shear Strength Steel 2200-3600 psi 15 - 25 N/mm2 2200-3600 psi 15 - 25 N/mm2 2200-3600 psi 15 - 25 N/mm2 2000-3000 psi 14 - 20 N/mm2 2900-3600 psi 20 - 25 N/ mm2 2900-3600 psi 20 - 25 N/ mm2 4800-5100 psi 33 - 35 N/mm2 Peel Strength Aluminum 10 - 14 PIW 45-65 N/25mm 18 - 22 PIW 85-100 N/25mm 10 - 14 PIW 45-65 N/25mm 18 - 22 PIW 85-100 N/25mm 18 - 22 PIW 85-100 N/25mm 18 - 22 PIW 85-100 N/25mm 33 - 40 PIW 150-180 N/25mm CTE 80 x 10-6 1/K 80 x 10-6 1/K 80 x 10-6 1/K 80 x 10-6 1/K 80 x 10-6 1/K 80 x 10-6 1/K 80 x 10-6 1/K Thermal Conductivity 0.1 W/(m.K) 0.1 W/(m.K) 0.1 W/(m.K) 0.1 W/(m.K) 0.1 W/(m.K) 0.1 W/(m.K) 0.1 W/(m.K) Dielectric Constant 4.6 4.6 4.6 4.6 4.6 4.6 4.6 Dielectric Strength 30 - 50 kVmm 30 - 50 kVmm 30 - 50 kVmm 30 - 50 kVmm 30 - 50 kVmm 30 - 50 kVmm 30 - 50 kVmm Volume Resistivity 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm 2 x 1013 Ohm.cm Temperature Range -65 to +250°F -55 to +120°C -65 to +250°F -55 to +120°C -65 to +300°F -55 to +150°C -65 to +390°F -55 to +200°C -65 to +330°F -55 to +165°C -65 to +330°F -55 to +165°C -40 to +250°F -40 to +120°C Applications Adhesion to a wide range of substrates (ferrites, metals, ceramics, plastics)For pack sizes, please see Additional Information. Surface Preparation Surfaces should be clean, dry and grease-free before the application. Permabond Cleaner A can be used for degreasing the majority of surfaces. If bonding to metals (aluminium, copper and alloys), you may need to abrade the surface with an emery cloth to remove the oxide layer.