Stop buildings from deteriorating.Apply it, and it becomes glass.
AQ SHIELD is a liquid glass coating: apply it at room temperature, and as it dries it turns into glass.
Its inorganic film — made without petroleum-based raw materials — protects materials from ultraviolet rays, water, and salt,
extending the service life of buildings and structures while keeping them beautiful.
Complies with Food Sanitation Act standardsThe cured film can even be used to coat tableware
CONCEPT
From "repair after it deteriorates" to "prevent deterioration in the first place"
Building deterioration has long been considered unavoidable. But its causes — ultraviolet rays, water, carbon dioxide, and salt —
enter from outside. Stop them at the surface of the material, and a building stays beautiful for far longer. AQ SHIELD is the coating made for exactly that.
01
Glass barely degrades
Glass is an inorganic material, like stone and sand, and resists physical change. That is fundamentally different from petroleum-based resin coatings, whose molecules are broken down by ultraviolet rays.
02
Far longer intervals between repainting
When the film lasts, the number of major scaffolded renovations itself goes down. Lowering a building's life-cycle cost is the single biggest benefit of extending its service life.
03
No harmful substances released
With silica as its main component, nothing harmful leaches into water and no toxic gases are produced if it burns. A coating designed with people and the environment in mind.
TECHNOLOGY
At the core of the technology: the composite glass binder
Conventional coatings build performance by mixing additives such as urethane or silicone into a resin binder (the component that acts as the adhesive).
AQ SHIELD reverses the idea: silica-based materials are encapsulated inside a glass binder.
Because no additives are exposed at the surface, performance lasts far longer.
Turns to glass with no heat treatment. Glass is normally made by melting at high temperatures, but AQ SHIELD forms a glass film simply by being applied at room temperature and drying — and it is a glass that flexes with the substrate instead of cracking.
One coat is all it takes. No primer is needed, and it can be applied to a wide range of materials — metal, stone, wood, concrete, tile, and more (a dedicated primer may be used depending on the application and material).
Think of it this way: a glass cup vs. a plastic cup
A glass cup is still clear after ten years of use; a plastic cup turns cloudy and worn. The difference between a resin coating and a glass film starts at the material itself.
A film dirt cannot penetrate
The glass binder film is so dense that dirt cannot work its way inside. Dirt that lands on the surface washes off easily, so good looks last.
Blocks the causes of deterioration at the surface
It suppresses the ingress of ultraviolet rays, water, carbon dioxide, and salt, preventing concrete carbonation and the progression of rust on metal.
A thin yet strong film
The thin film preserves the texture of the material — and for tile color changes, it can change only the color while keeping the joints and texture intact.
UV degrades the resin and performance gradually declines
Weather resistance
25 years of weather resistance (manufacturer's published guideline)
Typically around 10–15 years before repainting, depending on type
Primer
In principle no primer; one coat (a dedicated primer may be used for some applications)
Primer + intermediate coat + topcoat is the norm
Safety
The cured film complies with Food Sanitation Act standards; no harmful substances leach out
Varies by product
* Durability and weather-resistance figures are manufacturer-published guidelines, not guaranteed values. Actual durability depends on the condition of the material and the environment.
APPLICATIONS
Browse by application
The same glass binder technology, developed into products for each application. Specialist fields are covered in detail on their dedicated sites.
Photo is illustrative
Tile Exterior Walls & Large-Scale Renovation
Renovation proposals specialized in the tile exterior walls of office buildings and condominiums. A clear coat can bring back color and gloss; a color coat can change only the color while preserving texture and joints.
AQ Co., Ltd. is your single point of contact, and direct construction keeps intermediary margins down.
Concrete Barrier suppresses the ingress of water, carbon dioxide, and salt to prevent carbonation — for the preventive maintenance and longer service life of bridges, tunnels, dams, and other infrastructure.
Suppresses the attachment of barnacles and other marine organisms without leaching antifouling agents into the sea. A service life of over 10 years cuts the effort and cost of repainting. Japanese Patent No. 7936642.
Nano-level particles reach into the finest surface irregularities and suppress mold, bacteria, and algae. Bathrooms, kitchens, and toilets resist staining and become easier to clean.
The cured film complies with Food Sanitation Act standards and can be used on tableware. It has been adopted to coat 250,000 wooden plates for a major restaurant chain.
Real results, not advertising copy. Here are two representative large-scale tile exterior renovations by AQ Co., Ltd. — every photograph is an actual construction photo, not a stock image.
Before / duringAfter
Funabashi, ChibaTile-clad buildingApprox. 35 years oldColor change
A 35-year-old tile building, renewed with a color change"It was only repainted — but it looks re-tiled."
After scaffolding, high-pressure washing, tile repair, and sealant replacement, the tiles were recolored with AQ SHIELD Color. The beige tile exterior with its green band was reborn as a clean, contemporary gray facade.
Ordinary paint forms a thick film that buries the texture of the tile and fills the joints. AQ SHIELD's film is thin and its inorganic pigments bond directly to the tile, so only the color changes — texture and joints stay exactly as they were, as the close-up below shows.
Close-up after color change — joints and texture intact
Occupancy 75% → 100%Vacancies were conspicuous before the renovation; once work was complete, the building filled up completely.
Featured in a landlords' magazineThis project was covered by a magazine for property owners.
BeforeAfter
Ichikawa, Chiba8-story condominiumApprox. 15 years oldClear coating
Clear coating that protects color and texture as they are"No color was applied — yet the color came back."
After tile repair, high-pressure washing, and sealant replacement, the work was finished with an AQ SHIELD clear coat — no color change, just a glass film protecting the tile's original color and texture.
After about 15 years, UV and rain had faded and dulled the tile. The rooftop penthouse, exposed to strong sunlight and — being near the sea — salt-laden winds, had deteriorated considerably. Yet once the clear coat was applied, the faded tile regained its color and gloss without any color being added, coming back to life with a like-new look.
Penthouse tile — beforePenthouse tile — after
Won against two competing quotesCompetitors quoted about ¥26 million; AQ Co., Ltd. quoted about ¥23 million (a difference of roughly ¥3 million) — and was chosen on the scope of work, not price alone.
* Figures are from the competitive quotes for this property (an 8-story condominium). Costs vary with the condition of the building and the work specifications.
The official site also shows examples such as tile (left: untreated / right: coated), granite exterior walls, and concrete fences. See the case studies PDF above for details.
PRICE LIST
Price List — Featured Products and the Full List
All prices are tax excluded (Revision 21, revised August 10, 2026). First, a selection of the products we are asked about most; below it, the full price list in 11 groups by application. A PDF version is also available for printing.
Product
Size
Price (tax excluded)
Coverage
Design price per m²
Nano Glass Clear
15kg set
¥269,000
300m²
¥3,300
Nano Glass Color — Light Tint
15kg set
¥308,000
225m²
¥4,300
Tile Barrier Clear
15kg set
¥480,000
300m²
¥8,000
Tile Barrier Color
15kg set
¥580,000
200m²
¥12,000
Concrete Barrier Clear
15kg set
¥480,000
300m²
¥8,000
High Barrier ION Color — Light Tint
4kg set
¥178,000
60m²
¥5,800
AQ SHIELD MARINE
4kg
¥200,000
40m²
―
AQ SHIELD MARINEα
4kg
¥280,000
32m²
―
* MARINE and MARINEα are covered by Japanese Patent No. 7936642, "Antifouling coating that suppresses marine organism attachment" (patent holder: Fect Co., Ltd.). Design unit prices are guidelines based on work of 300 m² or more; coverage areas are calculated for flat surfaces with no absorption or unevenness. All products are made to order, with lead times of about 9–11 days. See the price list PDF for shipping and options (UV specification, special colors, etc.).
Full Price List — 11 Groups by Application (142 items)
Not just the featured products: every product's price (tax excluded), size, material cost per m², design unit price, and coverage area is listed on this page. Tap a group name to open its table. You can also search by product name.
No matching products found. Please try different search terms.
NANO GLASSThe core series for exterior walls and general use; metal types also available18 items
Product
Size
Price (tax excluded)
Material cost / m²
Design unit price
Coverage area
Nano Glass Clear
15kg set
¥269,000
¥897
¥3,300
300m²
Nano Glass Clear
4kg set
¥89,000
¥1,113
¥3,300
80m²
Nano Glass Clear
1kg set
¥37,600
¥1,880
¥3,300
20m²
Nano Glass Color — Light Tint
15kg set
¥308,000
¥1,369
¥4,300
225m²
Nano Glass Color — Light Tint
4kg set
¥112,000
¥1,867
¥4,300
60m²
Nano Glass Color — Light Tint
1kg set
¥43,000
¥2,867
¥4,300
15m²
Nano Glass Color — Custom Color
15kg set
¥438,000
¥1,947
¥4,800
225m²
Nano Glass Color — Custom Color
4kg set
¥140,000
¥2,333
¥4,800
60m²
Nano Glass Color — Custom Color
1kg set
¥53,000
¥3,533
¥4,800
15m²
Nano Glass Clear for Metal
15kg set
¥320,000
¥1,066
¥3,800
300m²
Nano Glass Clear for Metal
4kg set
¥111,000
¥1,388
¥3,800
80m²
Nano Glass Clear for Metal
1kg set
¥46,000
¥2,300
¥3,800
20m²
Nano Glass Color for Metal — Light Tint
15kg set
¥340,000
¥1,511
¥4,800
225m²
Nano Glass Color for Metal — Light Tint
4kg set
¥135,000
¥2,250
¥4,800
60m²
Nano Glass Color for Metal — Light Tint
1kg set
¥49,000
¥3,266
¥4,800
15m²
Nano Glass Color for Metal — Custom Color
15kg set
¥469,000
¥2,084
¥5,300
225m²
Nano Glass Color for Metal — Custom Color
4kg set
¥168,000
¥2,800
¥5,300
60m²
Nano Glass Color for Metal — Custom Color
1kg set
¥60,000
¥4,000
¥5,300
15m²
HIGH BARRIERHigh-barrier performance series, including ION types18 items
Product
Size
Price (tax excluded)
Material cost / m²
Design unit price
Coverage area
High Barrier Clear UV
15kg set
¥463,000
¥1,543
¥5,300
300m²
High Barrier Clear UV
4kg set
¥154,000
¥1,925
¥5,300
80m²
High Barrier Clear UV
1kg set
¥66,000
¥3,300
¥5,300
20m²
High Barrier Color — Light Tint
15kg set
¥480,000
¥2,133
¥5,600
225m²
High Barrier Color — Light Tint
4kg set
¥168,000
¥2,800
¥5,600
60m²
High Barrier Color — Light Tint
1kg set
¥68,000
¥4,533
¥5,600
15m²
High Barrier Color — Custom Color
15kg set
¥598,000
¥2,657
¥5,800
225m²
High Barrier Color — Custom Color
4kg set
¥198,000
¥3,300
¥5,800
60m²
High Barrier Color — Custom Color
1kg set
¥69,800
¥4,653
¥5,800
15m²
High Barrier ION Clear
15kg set
¥480,000
¥1,600
¥5,500
300m²
High Barrier ION Clear
4kg set
¥163,000
¥2,037
¥5,500
80m²
High Barrier ION Clear
1kg set
¥68,000
¥3,400
¥5,500
20m²
High Barrier ION Color — Light Tint
15kg set
¥490,000
¥2,177
¥5,800
225m²
High Barrier ION Color — Light Tint
4kg set
¥178,000
¥2,966
¥5,800
60m²
High Barrier ION Color — Light Tint
1kg set
¥69,800
¥4,653
¥5,800
15m²
High Barrier ION Color — Custom Color
15kg set
¥620,000
¥2,755
¥6,000
225m²
High Barrier ION Color — Custom Color
4kg set
¥210,000
¥3,500
¥6,000
60m²
High Barrier ION Color — Custom Color
1kg set
¥73,000
¥4,866
¥6,000
15m²
DEVIL STARThe Devil Star series9 items
Product
Size
Price (tax excluded)
Material cost / m²
Design unit price
Coverage area
Devil Star Clear
15kg set
¥403,000
¥1,343
¥4,300
300m²
Devil Star Clear
4kg set
¥123,000
¥1,538
¥4,300
80m²
Devil Star Clear
1kg set
¥55,000
¥2,750
¥4,300
20m²
Devil Star Color — Light Tint
15kg set
¥466,000
¥2,071
¥5,300
225m²
Devil Star Color — Light Tint
4kg set
¥159,000
¥2,650
¥5,300
60m²
Devil Star Color — Light Tint
1kg set
¥61,000
¥4,067
¥5,300
15m²
Devil Star Color — Custom Color
15kg set
¥586,000
¥2,604
¥5,800
225m²
Devil Star Color — Custom Color
4kg set
¥193,000
¥3,217
¥5,800
60m²
Devil Star Color — Custom Color
1kg set
¥69,800
¥4,653
¥5,800
15m²
WOOD BARRIERCoatings for wood9 items
Product
Size
Price (tax excluded)
Material cost / m²
Design unit price
Coverage area
Wood Barrier Clear (for wood)
15kg set
¥420,000
¥1,400
¥4,300
300m²
Wood Barrier Clear (for wood)
4kg set
¥130,000
¥1,625
¥4,300
80m²
Wood Barrier Clear (for wood)
1kg set
¥56,000
¥2,800
¥4,300
20m²
Wood Barrier Color — Light Tint
15kg set
¥480,000
¥2,133
¥5,300
225m²
Wood Barrier Color — Light Tint
4kg set
¥160,000
¥2,667
¥5,300
60m²
Wood Barrier Color — Light Tint
1kg set
¥60,000
¥4,000
¥5,300
15m²
Wood Barrier Color — Custom Color
15kg set
¥590,000
¥2,622
¥5,800
225m²
Wood Barrier Color — Custom Color
4kg set
¥198,000
¥3,300
¥5,800
60m²
Wood Barrier Color — Custom Color
1kg set
¥69,000
¥4,600
¥5,800
15m²
GLASS COATINGSGLASS DIAMOND / BARRIER / GOD / SUPER GLASS / COAT15 items
Product
Size
Price (tax excluded)
Material cost / m²
Design unit price
Coverage area
Glass DiamondGLASS DIAMOND
16L
¥735,000
¥2,297
¥5,000
320m²
Glass Diamond
4L
¥190,000
¥2,375
¥5,000
80m²
Glass Diamond
1L
¥58,000
¥2,900
¥5,000
20m²
Glass Barrier ClearGLASS BARRIER
15kg set
¥533,000
¥1,421
¥4,300
375m²
Glass Barrier Clear
4kg set
¥159,000
¥1,590
¥4,300
100m²
Glass Barrier Clear
1kg set
¥56,200
¥2,248
¥4,300
25m²
Glass God — solvent-free, one-component, SG 0.8GLASS GOD
Liquid Crystal — wipe-on application with microfiber cloth
16L
¥880,000
—
—
—
Liquid Crystal
4L
¥280,000
—
—
—
Liquid Crystal
1L
¥80,000
—
—
—
Electromagnetic Shield
20kg
¥185,000
—
—
—
Waterproof Coating
20kg
¥320,000
¥16,000
¥18,500
20m²
Insect-Repellent Coating — Clear / Light Tint
16kg
¥755,000
¥5,900
—
128m²
Insect-Repellent Coating — Clear / Light Tint
4kg
¥218,000
¥6,800
—
32m²
Insect-Repellent Coating — Black / Gray / Beige
1kg
¥88,000
¥11,000
—
8m²
AQ SHIELD MARINE / MARINEα — Japanese Patent No. 7936642 (Invention: antifouling coating that suppresses marine organism attachment). Patent holder: Fect Co., Ltd.
AQ SHIELD MARINE
1kg
¥80,000
—
—
10m²
AQ SHIELD MARINE
4kg
¥200,000
—
—
40m²
AQ SHIELD MARINEα
1kg
¥95,000
—
—
8m²
AQ SHIELD MARINEα
4kg
¥280,000
—
—
32m²
Anti-Marine-Fouling Thinner
1kg
¥8,300
—
—
—
Curing Retarder — addition rate 20–30%
16kg
¥80,000
—
—
—
Curing Retarder
4kg
¥23,000
—
—
—
Curing Retarder
1kg
¥7,300
—
—
—
Liquid Matting Agent — addition rate 10–20%
1kg
¥12,500
—
—
—
Liquid Matting Agent
500ml
¥7,500
—
—
—
Liquid Matting Agent
200ml
¥3,200
—
—
—
Ordering, lead times & shipping
All products are made to order. Orders are placed after payment is confirmed.
Lead time is approx. 9–11 days (the white Heavy-Duty Rust-Proof Primer takes 14 days).
Shipping weight for sets (base, hardener, thinner): 1 kg set = 2 kg / 4 kg set = 8 kg / 15 kg set = 30 kg.
Separate shipping rates apply to Okinawa, Hokkaido, and Tohoku (per 20 kg parcel). Please contact us for details.
Specifications & options
Gloss can be set in 10 grades, from full gloss to matte.
UV / matte specification: +¥2,000 per kg
Special color specification: +¥5,000 per kg
High Barrier anti-mold specification: +¥1,200 per kg
Please specify colors from the Japan Paint Manufacturers Association color sample book.
* This price list is based on Revision 21 (revised August 10, 2026). All prices are tax excluded. Specifications and prices are subject to change without notice.
TECHNICAL DOCUMENTS
Technical Documents & Downloads
Feel free to use these as-is for board meetings and internal reviews. All are PDFs; click to download. (The documents themselves are in Japanese.)
The MARINE / MARINEα hull coatings are patented as an "antifouling coating that suppresses marine organism attachment" (patent holder: Fect Co., Ltd.).
Adopted for 250,000 wooden plates
AQ SHIELD coats 250,000 wooden plates for a major restaurant chain — a case where another company's product had not worked, and switching to AQ SHIELD succeeded.
Published case studies
Actual construction photos — the Funabashi color change, the Ichikawa clear coating, and more — are published in the Case Studies section of this page. Tile, granite, and concrete fence examples are also in the case studies PDF.