3D Systems ProJet 7000 Facility Requirements Manual page 19

WARNING
Untrained personnel should
be evacuated from the area.
WARNING
Print materials are flammable.
Care should be taken during
print material containment
and cleanup operations.
A supply of dikes and control booms should be stocked so they are available to contain the affected area in the event of a major print material
spill. The spilled print material should then be absorbed on inert absorbent material and placed into drums for transfer to an approved waste
disposal site. After cleaning up the spill, individuals should wash thoroughly with soap and cold water. All clothing should be washed before reuse.
Avoid exposure to sunlight until skin and clothing have been cleaned of print material. Refer to the MSDS before using any chemicals. Repeated
or prolonged skin contact may cause sensitization. Vapor may be harmful.
Print Material Storage
Print materials should be stored in the opaque, non-reactive containers in which they were provided, according to the guidelines given in the
MSDS included with the print material and all applicable regulations (local, state, and federal). Protect print material from sunlight and ambient
room light. Print material may be stored in material carts with the lid securely fastened.
Material for the ProJet™ 7000 is composed of reactive monomers and oligomers. If improperly stored or handled, these compositions may
undergo polymerization resulting in the emission of heat. Improperly stored resins may increase in viscosity, and eventually result in a gelled,
polymerized product in the storage container. Materials should be stored in conformance with applicable laws and regulations. 3D Systems is not
responsible for losses incurred as the result of improper storage of print material. See subject of
Light - Photocurable materials should be shielded from sunlight or other sources of actinic radiation such as fluorescent or
mercury vapor lights. Exposure to UV radiation leads to an increase in product viscosity and eventually to product
polymerization, rendering the material unusable for part building.
Temperature - Containers of print material should be kept indoors at temperatures between 16ºC (60ºF) and 27ºC (80ºF).
Temperatures above 27ºC (80ºF) may accelerate the depletion of the stabilizers contained in the product. Once the stabilizers
are exhausted, the product may undergo polymerization, rendering it unusable for part building.
Containers - VisiJet® materials for the ProJet™ 7000 are shipped in 2 liter polypropylene containers. Polyethylene bottles or
liners are acceptable for storage also, as long as they are opaque to ultraviolet light, and not used to hold solvent containing
materials. Plastic containers made from organic solvent soluble materials such as polystyrene or polyvinylchloride (PVC) should
not be used for resin storage. VisiJet® materials containing acrylates should not be allowed to come in contact with iron and
copper, or alloys containing copper to insure product stability. Container lids should be tightly sealed in order to protect the
product from contamination and/or stray light when not in use. Also, a tightly sealed container is less likely to cause spillage if
accidentally dropped during handling. You should consult the applicable literature for proper storage, use and handling of
photocurable materials.
Shelf Life - VisiJet® material for the ProJet™ 7000 are guaranteed usable for at least twelve months from their date of
manufacture if properly stored and handled. Inventory provisions should be made to insure that the material purchased first is
used first. In general, resins are usable for periods of up to 18 months or longer. However, if the product is past its recertification
date, it is advisable to check the viscosity before using it.
In-Service Life - In-Service Life of the VisiJet ProJet 7000 materials is defined as the useful life of the material after having been
poured into the ProJet 7000 print tray. The In-Service Life of the Projet 7000 material greatly varies depending on material type,
usage and environmental conditions. The more volume built, the more the material is refreshed with newer material. This blends
older material with newer material and extends the In-Service Live of the materials. If the material is exposed to temperatures
outside of the normal operating limits, is exposed to UV light, is exposed to particulates or vapors in the air such as dust or
fumes, or if contaminates are introduced such as partially cured platforms being placed back into the print tray, this will shorten
the material In-Service life. The type of patterns and builds performed also affect the in-service life of the material. With all this
taken into consideration, we would expect the in-Service life of the material to be at least two years but can be much longer with
proper care and maintenance. The material retains its usefulness until a buildup of viscosity or a change in reactivity prevents
further processing in the ProJet™ 7000.
Light and Temperature below.