Pre-mixed lightweight mortar "New Sand Block"

Ideal for block, foundation, and RC! Substrate leveling sand mortar.

last updated Apr 16, 2025

Premixed Undercoat "Styrene-based New Sand Mortar"

Factory pre-mixed product! Mortar for undercoating with stable quality.

last updated Apr 16, 2025

High-speed hard mortar and paving material [Speeding up fence and carport construction]

Super fast-setting mortar that hardens in 5 to 6 minutes (at 20°C), so no temporary fixing is required.

last updated Aug 21, 2025

New lightweight aggregate "H·S Sand" for undercoat mortar *for crack and peeling prevention.

Effective in preventing thermal condensation in buildings by using foam particles for labor-saving and shortening construction periods in plastering work!

last updated Jun 06, 2025

Lightweight Aggregate for Mortar "H.S. Mild Sand II for Internal and External Use"

Improved work efficiency! Lightweight aggregate for cement mixtures with excellent adhesion.

last updated Apr 16, 2025

Lime plaster "Cement-based HS tile plaster"

Strong and durable against water. A pioneer in roofing and tile mortar. *Also excellent in earthquake resistance and strong against freeze damage!

last updated Apr 16, 2025

Interior primer "Undercoat" [Prevents resin, stains, and discoloration]

Can also be used for roof plaster! An ideal premix containing high-quality seaweed.

last updated Jun 06, 2025

Interior and exterior white wall material "Yamato Shikkui"

For use in interior and exterior walls, as well as roofing! Characterized by the natural beauty of traditional Japan.

last updated Jul 29, 2025

Exterior Product Comprehensive Catalog

Guide to the Exterior Products Comprehensive Catalog

last updated Nov 18, 2025

Harmoni Turf Neo

Harmoni Turf Neo (Static Electricity Suppression Type)

last updated Aug 21, 2025

Design Mortar [KORT Sample Kit]

A genuine set you can experience. The KORT sample kit is here!

last updated Nov 04, 2025

Pat Katamaru [Understandable through Anime!]

Quickly Understand with Manga! The 'HS Pat Catamar' that Changes the Scene

last updated Feb 02, 2026

New Kiso Moru DX

"Preserving the beauty at the time of delivery, just as it is, for the future." Strong against rain and impact. The birth of "New Kiso Mol DX," which embodies the ideal of baseboards.

last updated Jul 16, 2026