Z Corporation Z810 System User Manual

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Z Corporation Z810 System User Manual Manual pdf 61 page image

Z810 System User Manual Z CorporationZ Corporation Service (781) 852-5050 / (887) 88-ZCORP 61For more information on the uses of Z-Bond resin, please refer to the technical data sheet thatcan be found on the User Group Website at www.zcorp-users.com.8.3 USING Z-SNAP TM EPOXYZ-Snap epoxy is a flexible, toughened epoxy infiltration system specifically formulated for ZCorporation for use with zp ® 250 powder. Parts made from zp250 powder and infiltrated with Z-Snap exhibit the appearance and snap fit characteristics of plastic. These parts can be easilysanded and finished. For detailed instructions on how to use Z-Snap epoxy with zp260 parts seeSection 11.2.3, Part Removal and Post Processing of zp250 Parts.8.3.1 GENERAL APPLICATION NOTES• All part surfaces should be clean, dry and free of contaminants prior to applying Z-Snap epoxy.• The part should be oven dried for 2-4 hours at 150°F - 200°F (65°C - 85°C),depending on part volume and wall thickness, to drive off any excess moisture thatremains in the part after depowdering.• Z-Snap epoxy can be sprayed, brushed or drizzled onto parts. Multiple thin coatsapplied liberally during the resin’s working time will produce maximum infiltrationdepth.8.3.2 MIXING INSTRUCTIONS• In a clean, plastic, non-porous, container mix Z-Snap Resin to Hardener in a 2:1 ratio byvolume, 100:47 by weight. Mix the two parts thoroughly for 2 minutes, stirring in a figureeight pattern, being sure to scrape the sides and bottom of the container.• The material has a working time of 85 minutes in a 450 gram mass at room temperature.Mix only what you need. Please be aware that the mixed solution will increase to amaximum temperature of 122°F (50°C) after 40 minutes.8.3.3 CURING INFORMATION• Infiltrated parts should be pre-cured at ambient temperature for 30 minutes.• Cure the infiltrated part for 30 minutes at (120°F) 50°C then 2 hours at (165°F) 74°C on anon-stick (wax paper, Teflon, polyethylene, etc.) material or it will adhere to the surface itis sitting on while curing.8.3.4 CLEAN UP• Any remaining mixed infiltrant beyond the working time should be kept in a well-ventilatedarea to avoid fumes. Clean up of the spraying apparatus is simple with solvents found ata local hardware store such as acetone or denatured alcohol.For more information on the uses of Z-Snap epoxy, please refer to the technical data sheet thatcan be found on the User Group Website at www.zcorp-users.com.PLEASE NOTE: Z-Snap epoxy should not be cured at temperatures greater than (165°F) 74°Cand longer than 3 hours because flexibility may decrease, making the parts more brittle.PLEASE NOTE: The gel time decreases when preparing quantities of material greater than 450grams.