ARONWALL

Features

Eco-friendly product that extends building lifespans

ARONWALL protects buildings in four ways.

Protects buildings

Prevents water leaks and rebar corrosion

ARONWALL utilizes the superior flexibility of acrylic rubber to stop rainwater penetration and make the coating film harder to crack even when exterior concrete walls crack due to drying shrinkage. This also prevents rebar corrosion and alkali-aggregate reactions that cause expansion cracks in concrete.

Shonan Takahamadai Heights in Kanagawa Prefecture

Prevents concrete degradation

A one-millimeter thick coating of ARONWALL is equivalent to an approximately five-meter thick layer of concrete. ARONWALL's superior air tightness shuts out carbon dioxide gas, preventing concrete neutralization. When used in improvement work, ARONWALL can also effectively restore alkaline conditions.

Kyushu Electric Power's Sendai nuclear power plant in Kagoshima Prefecture

Prevents ALC degradation

ARONWALL prevents ALC degradation on exterior walls due to carbonation as well as salt and freeze damage by stopping penetration of carbon dioxide gas, moisture, and chloride ions. It protects joint sealants and improves water-resistance and durability by forming a continuous coating that covers not only ALC but masonry joints as well.

Mombetsu Exposure Testing Site in Mombetsu City

Prevents salt and freeze damage

ARONWALL also prevents early degradation of RC structures caused by salt damage by stopping the penetration of salt, oxygen and moisture. Additionally, ARONWALL offers water resistance and breathability that expels moisture from inside concrete, helping to maintain membrane dryness and stop freeze damage.

Salt Damage Exposure Testing Center in Okinawa Prefecture

Prevents detachment of finishing mortar on exterior walls

ARONWALL prevents the detachment and peeling of finishing mortar on exterior walls because of its prolonged flexibility and ability to maintain membrane integrity, thus minimizing damages even during earthquakes or other natural disasters.

Verified to have reduced damages during the Great Hanshin-Awaji Earthquake

ARONWALL minimizes damage to finishing materials including stopping detachment of materials, even base materials, during a major earthquake thanks to its long-term flexibility and ability to maintain membrane integrity.

Exterior wall coated in ARONWALL after the Great Hanshin-Awaji Earthquake

Untreated wall after the Great Hanshin-Awaji Earthquake

Maintains design aesthetic

Repairs cracks so that they are no longer noticeable

Using a coat of ARONWALL on top of a coat of ARONWALL SH, a base shock-absorbing material, applied to cracks, prevents cracking from recurring for an extended period of time and reduces the visibility of cracks.
Conventional U-cuts and sealant filling cause noise and dust and leaves a visible area where the crack was repaired, which becomes even more visible as time passes.

Conventional repair method using U-cut and sealant filling

Several years after

Repair using ARONWALL SH

Before

Around 15 years after repair
with ARONWALL

Low contamination specifications possible

ARONWALL's top coat contains a hydrophilicity technology that uses special high-durability hydroceramic ingredients that enables rain to wash away dirt and grime that accumulate on the coated film. ARONWALL offers excellent flexibility and low contamination specifications that make it harder for dirt and grime to accumulate, successfully maintaining a building's exterior aesthetic design for an extended period of time.

Tokushima Bunri University's Shido Campus in Kagawa Prefecture

Broad product lineup of low contamination finishing top coats

• ARON SUISEI SUPER COLOR SI (Water-soluble)
• ARON HS COLOR SI-1000(Water-soluble)
• ARON SUISEI SUPER COLOR F(Water-soluble)
• ARON MD COLOR U (Weak solvent-based)
• ARON MD COLOR SI (Weak solvent-based)
• ARON HS COLOR SI-3000(Weak solvent-based)

Comparison of low contamination finishing top coats

Contamination (outdoor exposure for one year in Tokyo)

ARONWALL/FC(DX)A COLOR/Elastic acrylic urethane

ARON SUISEI SUPER COLOR SI /Elastic acrylic silicon

ARON MD COLOR U/Elastic acrylic urethane

ARON MD COLOR SI/Elastic acrylic silicon

Friendly to the environment

Complete water-soluble specification

Toagosei offers complete water based specification as part of its environmental efforts, including compliance with regulations on volatile organic compounds (VOCs).
A complete water-soluble specification means that a product is comprised entirely of water based materials and zero organic solvents for the primer, waterproofing and finishing top coat layers.
These truly eco-friendly designs are not harmful to workers, nearby residents, or the surrounding community.

ARONWALL complete water-soluble specification process chart [PDF:52.3KB]

*The primer amount and drying time will vary depending on the type and conditions of the base material and work environment.

Kinan Office of River and National Highway for the MLIT Kinki Regional Development Bureau in Wakayama Prefecture

Extending longevity to help reduce waste

Our mission is to reduce the resources we use and curb the amount of waste we produce. This will safeguard the global environment and conserve limited resources for future generations.
As a product designed to protect buildings over an extended period of time, ARONWALL is helping to safeguard the environment by reducing waste.

*Reduce: Limit the output of waste products.

Nichirei Logistics Shikoku Inc. in Tokushima Prefecture

Delivers cost performance

Reduces base material treatment costs for exterior wall improvements

ARONWALL forms a continuous, flexible and seamless membrane that even covers masonry joints during RC and ALC exterior wall improvement work. This reduces base material treatment costs as well as effectively improves durability and prevents degradation of exterior ALC panels or sealants.

Takara Standard Shiga Factory in Shiga Prefecture

Reduces cost of crack repairs

Applying a coat of ARONWALL SH, a base shock-absorbing material, to cracks when applying ARONWALL can reduce the number of work days and level of expertise required compared to conventional methods*. In turn, this reduces the cost of base material treatment work.

*U-cut + sealant filling ≠ polymer cement mortar filling

Detailed look at ARONWALLSH

Cross-section during application of ARONWALL SH

Cross-section after application of ARONWALL SH (at time of crack)

The application of ARONWALL SH improves the crack coverage of ARONWALL.

Base displacement		ARONWALL (standard) [Without ARONWALL SH application]	Application of ARONWALL and ARONWALL SH (0.6-0.8kg/m2 30-50mm wide coat)	Remarks
Simple zero span tension		5mm	28mm	Shows the crack coverage width at the time of failure (pinhole) of Aron Coat ST coated film
Top-bottom displacement		12mm	36mm
Front-back displacement		15mm	29mm

Usage

Cosmetic improvements and waterproofing of building exterior walls

Specifications

Example of specification: ARONWALL STM method (low contamination water-based Si specification) standard and process

Catalog

Examples of Use

Improvement of general exterior wall finish coating using ARONWALL

There are many cases where rainwater penetrates not only a building's roof, but also through cracks on the exterior wall. For this reason, Toagosei developed and released ARONWALL, which is a modified version of Aron Coat, an acrylic rubber waterproofing coating for roofing, specifically for exterior wall applications. Exterior wall finishing with an acrylic rubber waterproofing coating such as ARONWALL has been the standard for waterproofing coating work since JASS8 was revised in the year 2000. ARONWALL is effective against neutralization, salt damage, and alkali-aggregate reactions because its coating shuts out causes of concrete degradation. The coating is flexible as well as covers and follows the base material (up to -40℃), providing sufficient performance even in cold environments subject to cracking.

Let's take a look at a real life example of application. Bankoku Shinryokan served as the venue for the Kyushu-Okinawa summit (26th G8 summit) held in the year 2000. The resort is located at Cape Busena on Okinawa's main island, providing panoramic views of Okinawa's beautiful ocean below. The contractor chose ARONWALL to protect this building over its lifespan because of its extensive track record in effectively preventing salt damage. Even today, 13 years after is completion and without any maintenance whatsoever, the resort retains its original beauty and character.

The Keiai Building used ARONWALL to waterproof the exterior walls and prevent the detachment of exterior wall tiles. To keep the exterior wall tiles from detaching, the building used a base material treatment using Aron ACC PIN-NET METHOD, which uses both Aron Vinylon Net and Aron Chemical Pin. Although CLEARWALL is ideal for simple exterior wall waterproofing work, ARONWALL MS, which provides a textured finish, was used because of the renewed exterior design plan as the look was changed from a ceramic tile finish to a rock style finish. In this manner, ARONWALL is a breakthrough product that accommodates a broad range of needs by simultaneously balancing function and design required of exterior wall waterproofing work. This is why ARONWALL has been used to coat more than 100 million m2 of exterior walls across a variety of building types, including schools, hospitals, condominiums, commercial facilities, factories, and warehouses.

Examples of ARONWALL application

Keiai Building

Before

After

Location	Minato Ward, Tokyo
Completed	2009
Existing design	Ceramic tiled exterior wall finish on RC structure
Reason for use	The contractor used the Aron ACC PIN-NET METHOD and ARONWALL MS for exterior wall waterproofing, to prevent exterior wall tiles from detaching, and because of a design change.

Bankoku Shinryokan

Location	Nago City, Okinawa
Completed	2000
Age-related degradation survey	13 years after completion
Reason for use	The contractor used ARONWALL at the time of construction to maintain the design and protect the framework from salt damage.

Mitsui-Soko Ibaraki Records Center

Location	Ibaraki City, Osaka
Completed	2009
Reason for use	The contractor used ARONWALL to ensure quality and the job was completed responsibly because the product has been verified to cover and follow cracks for an extended period of time in exterior wall waterproofing improvement work.

Inquiries