Summer 2017, desert climate
Abu Dhabi, United Arab Emirates
−39.5% air conditioning
Two identical cabins, same A/C unit, electric meters read over 252 hours.
Technical data
The proof, not just the claims.
Independent JIS/ISO tests, a field trial in a hot climate, full data and downloadable documents. Everything to qualify ThermBlock rigorously.
Real-world field trial
≈ 39.5%
less air-conditioning electricity
−20 à −30 °Con the roof surface−6 à −7 °Cinside the building
Coated
ControlTwo identical security cabins 50 m apart (same exposure). One coated with ThermBlock, one bare. Identical A/C (1.5 ton, 23 °C set point). Electric meters read over 252 hours (10.5 days), in two runs.
Result of both runs: 39.4% then 39.6% savings.
Tested in every climate
From the desert to the Himalayas.
ThermBlock doesn't only push heat away: applied indoors, it also limits losses. Four trials, three continents, summer and winter.
August 2014, UNHCR camp trial
Zaatari and Azraq camps, Jordan
−3.5 °C at indoor peak
Corrugated metal shelters (−3 °C on containers). No night-time penalty: the gap returns to 0 °C.
Winter 2015, applied on an inner wall
Kathmandu, Nepal
+5 °C in the room
Consulting room at Kathmandu Neuro Center: the wall gains 1 °C, the room 5 °C.
Winter 2016, applied on an inner wall
Saitama, Japan
+3 °C in the room
Gain measured while the outdoor temperature was 4 °C lower than the previous day.
Independent laboratory tests
Measured to JIS and ISO standards
Results from the Japan Paint Testing Association (Fujisawa, Kanagawa). Each test cites its standard, verifiable in specifications.
| Test | Result | Standard |
|---|---|---|
| Solar reflectance | 84.9% across the full spectrum, 86.2% in the infrared, 83.9% in UV and visible light | JIS K 5602 : 2008 |
| Accelerated weathering | 3,000 h (xenon lamp, 63 °C): no cracking, blistering, peeling or discoloration | JIS K 5600-7-7 : 2008 |
| Adhesion (pull-off) | 4.6 MPa on blasted steel, 1.2 MPa on mortar | JIS K 5600-5-7 : 2014 |
| Fire reaction | Non-combustible (20 min), heat release 3.5–5.2 MJ/m² (< 8) | ISO 5660-1 |
| Flexibility & impact | No cracking or detachment | JIS K 5600-5-1 / 5-3 |
| Salt spray | No corrosion, blistering or detachment | JIS K 5600-7-1 : 1999 |
| Acid / alkali / water resistance | No alteration | JIS K 5600-6-1 / 7-2 |
| Water-vapor permeability | 45 g/m²·24 h, the substrate stays breathable | JIS Z 0208 : 1976 |
| Limiting oxygen index | 29.1 | JIS K 7201-2 : 2007 |
| Drying | Touch-dry in 2.5 h, fully dry in 24 h (at 23 °C) | JIS K 5600-1-1 : 1999 |
ThermBlock specifications
- Type
- Water-based acrylic emulsion, hollow micro-spheres + TiO₂
- Hollow micro-spheres
- ≈ 50% by volume
- Density
- 0.76 kg/L
- Elasticity (elongation)
- > 200%
- Thermal conductivity λ
- 0.7 W/m·K (2 coats)
- Service range
- −30 °C to +140 °C
- Waterproofing
- 100%, seamless continuous film
- Sound insulation
- ≈ −10 dB
- Dew prevention
- Very effective
- Durability
- 15 to 20 years (3,000 h weathering test)
- VOC / formaldehyde
- Class E1 (< 0.04 mg/L)
- Coverage
- ≈ 30 m² / 15 L pail (2 coats, DFT > 0.3 mm)
Tested against the rest
Where other coatings crack
| Criterion | ThermBlock | GAINA | CoolTherm | AdGreenCoat | Mira Cool |
|---|---|---|---|---|---|
| Hollow micro-spheres | 50 % | 50% (film not flexible) | none | n.d. | almost none |
| Elasticity | > 200 % | 117 % | 125 % | 105 % | N/A |
| Folding test | no cracking | slow fold | 90° OK | slow fold | cracks |
| Durability (test) | 15–20 yrs (3,000 h) | 15–20 yrs (2,000 h) | 10 yrs (1,000 h) | n.d. | 10 yrs (3,000 h) |
| Roof temp. drop | −20 à −30 °C | n.d. | −20 à −30 °C | −15 à −20 °C | −20 °C |
| Overall score / 66 | 66 | 48 | 44 | 35 | 33 |
Comparison from the manufacturer's technical documentation (ThermBlock Japan Co., Ltd), competing reflective coatings assessed on the same criteria.
Application & safety
- Application
- Brush, roller or airless spray (tip 0.019–0.031 / 2,000–2,500 P.S.I)
- Coats
- 2 to 3, dry film thickness (DFT) > 0.3 mm
- Drying
- Touch-dry in 2.5 h, recoat after 1 to 4 h depending on temperature
- Application temperature
- Surface between 5 °C and 35 °C
- Humidity
- < 85% during application and drying
- Primer
- Not required on metal; ThermBase on smooth surfaces and tarps
- Cleaning
- Warm soapy water, right after use
Certifications & standards
Verifiable credentials
ISO 9001 : 2015
Quality management, since 7 Nov 2016
JISQ 9001 : 2015
Certificate no. QA165292
NETIS KT-160047-A
New-technology register (public works, Japan)
ISO 5660-1
Fire reaction: non-combustible
COV classe E1
Formaldehyde < 0.04 mg/L
Certificat Abu Dhabi
Recognition in the United Arab Emirates
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