Video summary

「水洗いレジンの廃液どうしてる？ 廃液は固めて捨てろ!! 高吸収性ポリマー まとまるこ」 jkumoのVLOG Vol.1333

Main summary

Key takeaways

Technology

Technological concept / product focus

  • Water-washable 3D printing resin cleanup: Instead of cleaning resin with IPA/alcohol, the creator uses a water-washable resin that can be washed using water.
  • Main problem: After washing, there is waste liquid (water containing dissolved resin). Rather than pouring it down the drain, they look for a safer disposal method.
  • Proposed solution: Use an absorbent high-grade polymer (example product: “Matomakoru” / まとまるこ) that:
    • Absorbs water
    • Expands
    • Solidifies into a jelly/crumble-like solid, making disposal easier.

Experimental procedure / “how-to” details

  • Waste collection: Collect the washed resin water in beakers.
  • Solidification approach:
    • Add an appropriate amount of the polymer to the waste liquid.
    • Stir / add to the container (tool notes: used chopsticks due to no spatula; silicone spatula suggested).
  • UV curing step:
    • The creator also mentions hardening/exposing the resin (or “hardening liquid”) via UV light using an ultraviolet machine to further manage hardened resin content.
    • They also mention wearing gloves while handling, because direct contact is not recommended.

Key usage parameters claimed

  • Dose: 1 scoop ≈ 5 g
  • Capacity: 5 g can solidify ~350 mL of water (stated as an approximate guideline; varies with impurities/oils).
  • Observed trial:
    • Used roughly ~500 mL of waste liquid.
    • Added around ~50 g (noted as a quantity worth discussion; the creator mentions typical quantities in the 200–500 mL range and that polymer amount/time varies).
    • Result: solidified quickly into a hard solid that later crumbles, making it easier to bag and discard.

Disposal / benefits

  • The solidified material can be put in a bag and disposed of on garbage day.
  • The creator frames this as:
    • More convenient than soaking with paper towels/newspapers.
    • Environmentally safer than dumping waste liquid directly into drains.
  • Storage life of the polymer: container tightly closed, usable for ~10 years (per their claim).
  • Disaster preparedness angle:
    • In disasters, toilets may fail; the polymer could help solidify liquids so they’re easier to manage without flushing systems.

Review / cost / practicality claims

  • The creator says the product is likely not the only option:
    • Similar absorbent polymers may exist and could be cheaper.
    • They encourage alternatives.
  • Cost efficiency claim:
    • They mention a 1000 g Amazon link and that they bought a 500 g pack.
    • They estimate the 5 g amount solidifies enough for about ~100 uses, implying good value (they estimate about ~1717 per use).

Safety / handling notes

  • Wear gloves when handling the resin/waste and during polymer use.
  • UV exposure is used to harden resin, but direct handling of uncured material is discouraged.

Main speakers / sources

  • Speaker: “Jako” (also referenced as jkumo’s VLOG Vol.1333)
  • Product source mentioned: Matomakoru / まとまるこ (absorbent high-grade polymer; Amazon link referenced)

Original video