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Week 12. Group / Molding and Casting

This is group assignment page for West harima student:

Student

group assignment

  • review the safety data sheets for each of your molding and casting materials,then make and compare test casts with each of them
  • compare mold making processes

Materials

Modeling Wax

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Ferris File-A-Wax datasheet

According to safety data sheets (SDS), important to be careful below.

  • Molten product can cause serious burns. Avoid contact with molten material.
  • Wear appropriate personal protective equipment. Avoid contact with skin and eyes.
    • Eye/Face: Wear safety goggles.
    • Hands: Wear thermally resistant gloves and long sleeves if handling molten product.
    • Skin/Body: Prevent skin contact, wear long sleeves and/or coveralls.
  • Do not walk through spilled material. Do not breath dust or fumes.
  • Avoid release to the environment.
  • Avoid dust formation. Use clean non-sparking tools to collect material into suitable container for disposal.
  • Wash thoroughly with soap and water after handling.
  • Use only in a well-ventilated area and avoid breathing fumes and dust (dust is unlikely).

Resing Cast

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More hazadous and toxic compared with other materials. Take care to avoid eye contact or contact with skin. Avoid using in a place with poor ventilation or possibiity of inhaling vapors.

  • Safety precautions
    • Keep away from sources of ignition such as heat/sparks/open flames/hot objects.
    • Ground/earth the container.
    • Use explosion-proof electrical equipment.
    • Avoid inhalation of dust, fumes, gases, mists, vapors, and sprays
    • Use only outdoors or in a well-ventilated area
    • Wear protective gloves/protective clothing/eye protection/face protection, etc.
    • Avoid release to the environment

Test Cast by Wave Resin Cast EX

After ensuring adequate ventilation, put on goggles and a protective mask and begin the test.

nts of Wave Resin Cast EX Liquid A and Liquid B were measured on a scale and poured into a paper cup. We mixed them thoroughly and poured them into the test vessel.

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It got very hot during and after solidification.

Silicon

  • I used a product by Shinetsu Silicone a Japanese chemical company.
  • KE-17 is over 30 years long selling item.

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  • Especially CAT-RM is more hazardous, so we need to prepare safety measure for CAT-RM and it meets KE-17 as well.
  • I must avoid touch, breath-in. Wear gloves, masks, clothing for this work. Even if the clothe touched this liquid, it must be well washed.

  • I put on gloves and masks while working on this. And also the room should be well ventilated.

  • datasheet

Release agent

I used Mr. Silicone Barrier.

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  • This prevents silicone from sticking to each other and improves resin casts.
  • Below caution is written on the box.
  • Keep out of reach of children, avoid swallowing or eating accidentally.
  • Contains organic solvents, ensuring ventilation while painting or drying.
  • Be careful not to see people or objects when spraying paint.
  • Wear a mask or gloves to avoid touching the skin as much as possible during handling.
  • When it gets on the skin, wash it with soapy water.
  • When it gets in your eyes, rinse with water.
  • When you feel sick, keep calm in the clean air place.
  • Consult a doctor immediately when there is pain or appearance change.

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Impressions

  • The gas mask was very painful.
  • I don’t want to wear it anymore because after I took the mask off it had a mold on my face!