3D Systems ProX 950 Facility Requirements Manual - page 17
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3D Systems, Inc.
RESIN STORAGE AND SAFETY
You are responsible for ensuring that the facility where your SLA
®
system and stereolithography (SLA) materials are housed is
properly configured for safe operation of the SLA system and of the materials used in that system. Personnel who operate the
equipment or use the materials must comply with all relevant safety codes and applicable regulatory requirements and laws,
particularly those that relate to usage of hazardous chemicals, laser radiation, and to disposal of regulated material. The system
conforms to Federal Laser Product Performance Standards 21CFR1040.10 Class I laser in normal operation and/or bypass
mode. During field service, emission levels correspond to a Class IV laser product. The ProX 950 complies with CE requirements.
Note: You are responsible for determining whether additional supplies and equipment are necessary according
to local, state, federal or other regulatory laws that govern your location.
STEREOLITHOGRAPHY (SLA) MATERIAL USAGE
SLA resins in the liquid state require use of approved surgical- type 100% nitrile gloves and other equipment to protect the user
from direct contact with the uncured, or liquid, material. In general, resin is fully cured only after adequate exposure in the
ProCure™ UV chamber; only after being fully cured, do the parts no longer require protective gloves to handle.
SLA MATERIAL STORAGE
Prior to actual use of the SLA material, read the Material Safety Data Sheet (MSDS) for the material(s) that you have selected;
follow the instructions and guidelines that those documents provide. You may also refer to the resin manufacturers’ material
safety and handling guides for more information about resin handling.
RESIN DISPOSAL
Because stereolithography materials are regulated, they are subject to special disposal requirements by your local, federal,
or other regulatory agencies. Follow applicable disposal guidelines. Contact a local waste management company for
recommendations on disposal requirements that affect your facility.
Do not leave uncured, or liquid, resins in an area where persons who are not knowledgeable about their handling or use may
have access to them. If your area requires a regulated waste disposal, consult with and retain a waste management company to
periodically pick up regulated waste. Your local waste management company may recommend that you set up a drum, or other
approved container, to dispose of liquid resin and of any materials (such as paper towels or gloves) that may have come into
contact with the uncured liquid resin.
After part building in the SLA system, the parts are not yet fully cured, and must be post-cured using the ProCure UV Chamber.
After an adequate period of UV light exposure in the ProCure chamber, the parts should be fully solidified and then may be
handled without the precaution of gloves.
Note: Inspect your parts after curing in the ProCure UV chamber to ensure they are fully solidified. Part surface
tackiness, visible or discernable areas of liquid resin indicate the part is not fully cured.
STORAGE AND USAGE GUIDELINES
• Always wear appropriate safety equipmen
t, such as 100% nitrile gloves when handling uncured liquid resin.
Protect your body from any direct contact with uncured liquid SLA resin.
• Always read the Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) prior to use of any SLA resin
material.
• Always use the oldest SLA material first. All SLA materials have a shelf life, usually one year from the date of
manufacture. Using the oldest material first helps you to use all your purchased materials within that period of
time.
• During storage, shield the SLA material from sunlight or other sources of actinic radiation, such as fluorescent or
mercury vapor lights. Exposing the resin to UV radiation increases product viscosity and polymerization, making
the SLA material unsuitable for part building. Storing resin above the maximum recommended temperature can
make the resin unsuitable for part building.
• Store containers of SLA materials indoors at temperatures between 16°C (60 °F) and 27°C (80 °F). Storing at
temperatures above this maximum could render the material unusable for part building.
• We recommend storing your SLA materials in a fire-resistant storage cabinet.
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