Epoxy Adhesive Description: PPC179 is a general-purpose two-part epoxy with excellent adhesion to a wide variety of substrates. The standard colour is clear amber and other colours are available on request. PPC179 is available in bulk, kits, twin cartridges and twin packs. Features: Long pot life Non-toxic Excellent adhesion Impact resistant Good chemical resistance Specifications: Mixed Property PPC179 Colour Amber Black Specific Gravity g/ml 1.1 Viscosity m.Pa.s 25C 14010 Mix Ratio by Volume 1:1 Mix Ratio by Weight 1:1 Gel Time 90 Minutes (150g 25C) Weight 500g Dispensing Method Twin Pack Cure Schedule Working Life Light Handling Full Cure Post Cure Temperature (minutes *) (hours *) (hours *) (**) 10C 70 48 96 5 days 25C 20C 60 16 32 8 hours 60C 30C 30 8 16 4 hours 80C *2mm cross sectional area **For maximum properties www.element14.com www.farnell.com www.newark.com www.cpc.co.uk Page <1> 25/01/13 V1.0Epoxy Adhesive Cure time will depend on cross sectional area, ambient conditions and mixing method. The above are typical values and will vary depending on the cured mass and application. Hotter temperatures may be used for faster cure but will result in higher post cure shrinkage and higher cure exotherm. Experimentation and testing is suggested to avoid side effects. For maximum properties, a post cure may be required. Typical Properties: Shore D Hardness 65 - 75 Operating Temperature * -40C to +120C Application and geometry dependant Compressive Strength 64 MN/m2 Surface Resistivity 16.94 Log10ohm Dielectric strength 17 kV/mm Tensile strength 20 MPa Lap shear adhesion Aluminium to Aluminium 7.6 MPa ABS to ABS (1) 5.5 MPa Copper to Copper 6.1 Mpa Nylon 6 to Nylon 6 2.5 MPa Stainless Steel 9.0 MPa Acrylic to Acrylic 2.3 MPa (1) Substrate failure Cartridge Mixing: It is essential for best results that the cartridge is balanced before use to ensure correct mixing. Loading the cartridge into the gun before attaching the mixer element and pumping the gun to push a small amount of the contents forward will achieve this. Wipe the excess from the cartridge tip and add the static mixer. The cartridge is now ready for use. Twinpacks: Twinpacks are pre-weighed resin and hardener components contained in a tough flexible film, separated by a removable clip and rail. Once the clip and rail is removed the resin and hardener can be thoroughly mixed within the bag and is then ready for use. Mixing will normally take ~ 3 minutes depending on the operator and viscosity of the material. Twinpacks are ideal for small to medium production runs, prototyping and on-site or field use. The twinpack weight/volume may also be tailored to a specific size on request. Bulk Material: PX681 is an un-filled system and is unlikely to separate or sediment In bulk or kit form gentle mixing with a paddle or spatula will homogenise the material before use In bulk or kit form evacuation may be necessary for best results. Kits: In kit form, resin and hardener are provided in separate containers to the correct ratio In most cases, pour the hardener into the larger resin container and use it as a mixing vessel Stir well using an appropriate mixer until homogeneous www.element14.com www.farnell.com www.newark.com www.cpc.co.uk Page <2> 25/01/13 V1.0