Stratasys Objet30 - Removing SUP705 with Caustic Soda; Removing SUP706 with Caustic Soda and Sodium Metasilicate

Objet30 User Guide 7 Handling Printed Models
DOC-34025 Rev. I 7-4
To clean a model using this device, you manipulate it and the water using the
built-in, waterproof sleeves. A pump turns ordinary tap water into a high-
pressure jet. A wiper keeps the window clear.
Use caution when cleaning delicate models with high-pressure water
systems.
Removing SUP705 with Caustic Soda
Soak models in a 1-percent solution of caustic soda (sodium hydroxide) to
remove Support material from difficult-to-reach areas and to give the model a
smooth, clean finish. The amount of time you soak the model in the solution
depends on how delicate it is and how much Support material needs to be
removed, but it is typically between half-an-hour and several hours. In any
case, you should remove as much Support material as possible before the
caustic soda treatment, and rinse the model thoroughly (with a water jet)
afterwards.
Warning
Caustic soda may cause chemical burns, scarring and blindness. Mixing it
with water generates heat that could ignite other materials. Never pour
water into caustic soda. When diluting the solution, always add caustic soda
to water. Take adequate safety precautions; always use nitrile gloves when
handling caustic soda and models soaked in it.
Removing SUP706 with Caustic Soda and Sodium Metasilicate
Soak models in a 2-percent solution of caustic soda (sodium hydroxide) and
sodim metasilicate (Na
2
SiO
3
) to remove Support material. The amount of time
you soak the model in the solution depends on how delicate it is and how much
Support material needs to be removed. Rinse the model thoroughly under
running water afterwards.
SUP706 will dissolve into the caustic soda and sodium metasilicate solution
and saturate it, reducing its effectiveness. Replace the solution when the
Support material reaches 15% of the solution (after approximately one
month of average use).
Warning
Caustic soda may cause chemical burns, scarring and blindness. Mixing it
with water generates heat that could ignite other materials. Never pour
water into caustic soda. When diluting the solution, always add caustic soda
to water. Take adequate safety precautions; always use nitrile gloves when
handling caustic soda and models soaked in it.