User manual

Z Corporation Z406 System User Manual
52 Z Corporation Service [phone]/(877)88-ZCORP
5.1.3 USING Z-SNAP
TM
EPOXY
Z-Snap epoxy is a flexible, toughened epoxy infiltration system specifically formulated for Z
Corporation 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 easily sanded and
finished. For detailed instructions on how to use Z-Snap epoxy with zp250 parts see Section 9.2,
Using zp250 Powder.
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 that remains in the part after
depowdering.
• Z-Snap epoxy can be sprayed, brushed or drizzled onto parts. Multiple thin coats applied
liberally during the resin’s working time will produce maximum infiltration depth.
MIXING INSTRUCTIONS
• In a clean, plastic, non-porous, container mix Z-Snap Resin to Hardener in a 2:1 ratio by volume,
100:47 by weight. Mix the two parts thoroughly for 2 minutes, stirring in a figure eight 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 a maximum temperature
of 122°F (50°C) after 40 minutes.
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 a non-
stick (wax paper, Teflon, polyethylene, etc.) material or it will adhere to the surface it is sitting on
while curing.
CLEAN UP
• Any remaining mixed infiltrant beyond the working time should be kept in a well-ventilated area to
avoid fumes. Clean up of the spraying apparatus is simple with solvents found at a 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 that can
be found on the User Group Website at www.zcorp-users.com
.
PLEASE NOTE: The gel time decreases when preparing quantities of material greater than 450
grams.
PLEASE NOTE: Z-Snap epoxy should not be cured at temperatures greater than (165°F) 74°C
and longer than 3 hours because flexibility may decrease, making the parts more brittle.