What is AD-COAT, Chemicals for protection against Osmosis?

AD-COAT is a chemical for protection against water permeation for stone materials, concrete, and tiles. Stone materials and concrete absorb water, leading to deterioration, neutralization, and efflorescence from dirt accumulation and acid rain.Salt water and wind cause damage in beach areas, and frost damage occurs in cold districts.Always when there is water or moisture in a place, mold and algae problems occur damaging materials; also fungus might cause serious health problems. Chemical for protection against water permeation form protection layers inside a base material, so as with film protection materials, such as coating or wax, it is possible to protect the base material without changing its appearance. In addition, it is not strongly affected by ultra violet rays, so it lasts for a very long time. However, there are many kinds of chemicals for protection from water permeation on the market, but some of them act only as water repellents, so it is important to choose the right product. Complete prevention of problems might sound pretty tough, but the reduction of problems without altering the quality of natural stone can be achieved by selecting the most suitable protection chemical for each kind of stone. Thanks to cooperation from the owners, designers, and general construction companies, we were able to protect more than 300,000㎡ at our company using AD-COAT.We will further develop new products to suit customers' needs to protect cultural assets and meet the needs of new construction or restorations for existing homes.

Menu for AD-COAT coating materials

AD-COAT was developed as a result of our company's long experience. It greatly reduces water absorption by forming rigid osmotic gauges inside stone material and concrete.

The percentage of water absorption is decreased helping to prevent water damage..



 

Select the proper AD-COAT according to usage
AD-SUPER		Chemicals for protection against water permeation for marbles･Permeation type.
AD-SUPER		Deterioration Protection for stone material and concrete・Permeation type.
AD-WHITE		Chemicals for protection against water permeation for granite・Permeation type.
AD-CERASIN		Smudge repellent for stone material・Permeation type.
AD-SK MORTAR		Weather resistant coating・Wet finishing type・Coating type. Water absorption prevention・Preventing mortar efflorescence.

Actual Results of using AD-COAT

Records until April 2003

January 2003
Shinagawa Tower
Tokyo 156 rooms Interior floors New Limestone
Obayashi Gumi "Sekigahara" stone material AD Super

January 2003
Celestine Shibamitui Building
Tokyo 935㎡・Interior floors Repaired Water polished Marble
Daiichi Seibi Co., Ltd. AD Super

January 2003
Cannon Shimomaruko Headquarters Building
Kanagawa 346㎡・Exterior shrubbery Product applied Burned Granite
"Sekigahara" stone material AD White

　 January 2003
Roppongi 6 chome D block Office B-Building outdoor facility
Tokyo 510㎡・Exterior floor Product applied Burned Granite
Kumagaya Gumi Kobayashi Sekizai Kogyo AD White

February to March 2003
Roppongi 6 chome C block outdoor facility, floors, and more
Tokyo 3500㎡・Exterior floor New Burned Granite
Toda Fujita JV, Shimizu Seibu JV Ibiden Greentec / Eiken Sangyo AD White

February to March 2003
Roppongi 6 chome C block outdoor facility, floors, and more
Tokyo 2400㎡・Exterior floor New Sandstone
Toda Fujita JV, Shimizu Seibu JV Ibiden Greentec / Eiken Sangyo AD Super

February to March 2003
Roppongi 6 chome C block outdoor facility, floors, and more
Tokyo 820㎡・Exterior floor New Quartz
Toda Fujita JV, Eiken Sangyo AD Super

February to March 2003
Roppongi 6 chome C block outdoor facility, floors, and more
Tokyo 250㎡・Exterior floor New "Isahaya" stone
Toda Fujita JV, Eiken Sangyo AD Super

February to March 2003
Roppongi 6 chome 　Outdoor deck
Tokyo 150㎡・Exterior floor Product/New Sandstone
Obayashi Doro Kobayashi Sekizai Kogyo AD Super

February to March 2003
Roppongi 6 chome C block Resident's D-building
Tokyo 400㎡・Interior walls and floors New Burned Granite
Shimizu・Seibu JV, "Sekigahara" stone material AD Serarezin

February 2003
Shonan Crystal Hotel
Kanagawa 130㎡・Interior floors Repair Polished Marble
N･K･G･S AD Aqua

February to April 2003
Roppongi 6 chome Exterior of theater building
Tokyo 1600㎡・Exterior floors Product applied Burned Granite
Fujita Kobayashi Sekizai Kogyo AD White

March 2003
Roppongi 6 chome Exterior of Broadcasting Center
Tokyo 807㎡・Exterior floors New Burned Granite
Takenaka Komuten Yahashi Dairiseki AD White

April 2003
Roppongi 6 chome D block Office B-Building outdoor facility
Tokyo 205㎡・Exterior floor Product applied Burned Granite
Kumagaya Gumi Yahashi Dairiseki AD White

April 2003
Roppongi 6 chome Exterior of theater building
Tokyo 2130㎡・Exterior floors Product applied Quartz
Fujita Fujita AD Super

April 2003
Roppongi 6 chome Exterior of theater building
Tokyo 21300㎡・Exterior floors Product applied Burned Granite
Fujita Fujita AD White

January 2003
Kajiwara Ophthalmology
Sasebo 800㎡ Exterior floors・walls Product applied Burned Granite・polished
AD White

Answers to frequently asked questions

What is different from European and American products, which already have shown satisfactory results? When compared to foreign products, you will note that these other products have indeed shown satisfactory results. This is because European and American architecture has used more stone materials than Japanese architecture. Also, Japanese don't have the cultural habit of putting stone tiles on the floor and walking into a building without removing footwear. However, when you compare the quality of stone materials made in Japan, it becomes clear that "thickness" is a big difference. More thickness stone materials are, the more difficult it is for water to permeate the material. This leads to improved durability. That is to say, the conditions for using stone materials in Japan are quite severe, and weather conditions are different compared to other countries. We are working on products that have durability and last longer under severe conditions. (I think made in Japan products suit Japan best) Does stone material really degrade? Yes, stone materials do degrade naturally. Most of the cause is from organic substances and acid rain permeating into the material, but when moisture increases, algae and other fungus grow, causing further degradation. We use our company made stone temperament reinforcement (AD-HDST 2) to repair the rigidity of degraded stone materials. This is a picture of how sandstone peels. When water invades, the layer starts to peel off just like Baumkuchen. Can AD-COAT work on concrete? Yes, of course you can use it on concrete. AD-COAT is optimally used where you don't want the fluorine or urethane coating to come off, but want to prevent the stone from getting discolored or neutralized. AD-COAT doesn't form a film, so it doesn't change the concrete's appearance, only protects it. I want to apply it after cleaning exterior walls. Is it possible to use it on tiles? We receive a lot of questions asking, "Can't be used after cleaning exterior walls?" If the exterior walls and tiles are made of water absorptive materials, you can expect great results.In addition, by permeating into tile seams, it prevents them from discoloring or degrading. After cleaning exterior walls, please consider applying AD-COAT. We used water repellent, but it never worked! We've often heard this type of complaint from people who have used other company's products. There are a lot of stone materials in the market and to try to cover all of them with one repellent is not advisable. It is very important to choose the right coating for the right stone material. If you say you've been using many products but none of them have worked, try AD-COAT, it really works. You'll see the difference. How long does it last? There is no official time period for Protection against water permeation. We've experimented with the efficiency and have confirmed that it lasts more than 10years, however, because of differing construction conditions, weather conditions, and other points, such as exterior or interior surfaces, walls, floors, the contents of the water supply, etc. We can't lump things together and say how long it will last. Additionally, the evaluations differ according to their respective purposes. For example, if you used AD-COAT to reduce the base material degradation, when you look at it over the long term, the difference between non-coated and coated is obvious. If you used it to prevent discoloring, you can expect a big difference between applied surfaces and not applied surfaces. However, it should be noted that even when the water-absorption prevention layer still remains inside some material, it doesn't mean that discoloration will not attach to the surface. Therefore, some people consider "efficiency to be over" when they see discoloration on the surface. There is more information under "Menu for Special features of AD-COAT" and "AD-COAT experiment data" The picture on the left shows the concrete part, it's been three years since applying AD Super. What is the chemical used for protection against water permeation? Chemicals for protection against water permeation is a product that permeates inside materials, such as stone materials and concrete, and forms a layer within those materials that has the ability to absorb water As a result, it greatly reduces water permeation and discoloration of materials, but applying AD-COAT does not alter the surface of the base material and the quality of finishing surface. (Pictures are attached in "Menu for Special features of AD-COAT") (Disclosing test result) Left is sandstone without applying the product. Applied Super on the right.