Update-Purpose Post of the day: Gypsum Self-Leveling Concrete! Semakin sempurna aka WARNA DOFF (100% tidak memantulkan cahaya)!!

    

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🌑 Gypsum Self-Leveling Concrete: 

Light Reflectance Explanation

✅ Is it 100% non-reflective?

• YES aka NEARLY !!
  Gypsum-based self-leveling concrete has a very matte, low-luster finish.

• It absorbs most light instead of reflecting it.

• Reflectivity is extremely low, though not literally 0% — no material is perfectly black or absorbent unless it's engineered to be (like Vantablack).

📉 Estimated Light Reflectance (LRV)

• Typical gypsum self-levelers:
  LRV = 10–30, depending on exact formulation and finish.

  • Lighter-colored ones reflect more.

  • More porous/dusty surfaces reflect less.

For comparison:

• Glossy white paint → LRV ~ 85–90

• Matte gray concrete → LRV ~ 25–40

• Flat black paint → LRV ~ 5–10

• Vantablack (ultra black material) → LRV ~ 0.036