撥水(はっすい)

はっすい
noun
water repellency; water-repellent
technology
1. water repellency; water-repellent treatment
The property or treatment of repelling water, causing it to bead up and roll off a surface rather than soaking in. Commonly used to describe fabric treatments and coatings.
撥水(はっすい)加工(かこう)のジャケット。
A jacket with water-repellent treatment.
この生地(きじ)は撥水(はっすい)性(せい)に優(すぐ)れている。
This fabric has excellent water repellency.
撥水(はっすい)スプレーを靴(くつ)に吹(ふ)きかけておけば、雨(あめ)の日(ひ)でも安心(あんしん)だ。
If you spray water-repellent on your shoes, you can feel at ease even on rainy days.

Compound noun: 撥(はつ) (to repel) + 水(すい) (water). Often used as a modifier in compound forms.

Common collocations

  • 撥水(はっすい)加工(かこう) (water-repellent treatment/finish)
  • 撥水(はっすい)スプレー (water-repellent spray)
  • 撥水(はっすい)性(せい) (water repellency)
  • 撥水(はっすい)効果(こうか) (water-repellent effect)

Similar words

  • 防水(ぼうすい): waterproof — completely prevents water penetration
  • 撥水(はっすい): water-repellent — causes water to bead and roll off, but not fully waterproof

Related Words

Compare: 防水(ぼうすい) (waterproof (full protection))
Compare: 耐水(たいすい) (water resistance)
Compare: 耐水性(たいすいせい) (water resistance)
Compare: 吸水性(きゅうすいせい) (absorbency)
general
Added 2026.3.13 8:50 · Revised 2026.10.12 4:27
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