自然石外壁劣化防止工事　'89.2　施工
横浜・馬車道　日本火災横浜ビル
設計：日建設計　建築：熊谷組他J.V.

Preventing deterioration and contamination on natural stone external wall
Treated in February 1989 with HYDROTHERM HX by Chemix Japan Ltd.
Nihon Fire Insurance Co. Yokohama Bldg.,Bashamichi, Yokohama
Designd: Nikken Sekkei Ltd. Contractor: Kumagai Gumi Co., Ltd. J.V. with some other contractors.

大型陶板給水防止工事　'89.6　施工
国会議事堂本屋尖塔部分

Water absorpution, contamination-proofing for replaced artificial granite
Treated in June 1989 with HYDROTHERM HX.
Steeple df the Diet Bldg. (House of Parliament), Tokyo

←新築御影石裏面処理　'90.12　施工
東京都庁新庁舎正面玄関

Backside treatment for stain resistance on granite external wall
Treated in December 1990 with HYDROTHERM HX.
Main entrance of New Tokyo Metropolitan Government Office Bldg., Shinjuku, Tokyo

↓新築御影石汚染防止裏面処理　'87.4　施工
大阪市・北区　クラボウ本社ビル
建築：竹中工務店　施工：関ヶ原石材・矢橋大理石　　熊取谷石材・常陸大理石

Backside treatment for stain-proofing on granite external wall
Treated in April 1987 with HYDROTHERM HX.
Head office of Kurabo Industries Ltd., Kita-ku, Osaka
Contractor: TAKENAKA COAP.