Thermal insulation & water-proof coating Metashield
A. INTRODUCTION
MetaShield Insulation and Water-proof Paint is produced under American technology from vacuum microspheres which has very low thermal conductivity. MetaShield enables you to deal with water-proofing and thermal insulation at the same time with the durability under all weather conditions.
B. APPLICATION AREAS
MetaShield can be used for thermal insulation and water-proof purpose on:
- Metal or brick roof, concrete wall, terrace,… of: dwelling house, factory, school, hospital, department store, warehouse, hotel, gymnasium, iron sheet house, container house and wooden house…
- Water storage tank, oil storage tank, oil field, animal industry, cold storage house, oil pipe and insulating pipe…
- Bus, small bus, water-craft, vending machine…
- Heating, Ventilation and Air Conditioning (HVAC) systems.
C. METASHIELD BENEFITS
- Very low thermal conductivity which provides efficient thermal insulation capacity.
- Excellent water-proof which protects roof and wall under all weather.
- Play role as a good sealant to the rooftops.
- Protect rooftops out of damage thanks to chemical resistance.
- Dry coating film with high hardness feature and dirt pick up resistance.
- Good washability.
- Sound damping when raining.
- Good bonding to almost surfaces: concrete, metal, wood…
- Lightweight coating, not affect to the load of structure.
- Water based, environmental friendly.
- No heavy metals and hazardous substances.
- Durability under all climates, including coastals.
- All applying methods can be used: brush, roller or spray.
- Coating application does not affect activities inside.
D. HEAT INSULATING EFFICIENCE
Comparison between with and without MetaShield coated metal roof exposed to sunlight at noon:
| Comparison | Bare roof | With MetaShield | Temperature difference |
| Underneath roof | 68oC | 40oC | 28oC |
| Indoor | 37oC | 30oC | 7oC |
Note:
- The temperature is measured in common industrial workshop conditions
- Dry film thickness = 0.3mm
E. TYPICAL PHYSICAL PROPERTIES OF METASHIELD
| Base | Water-based acrylic | pH | 7.0 – 8.0 | |
| Volume solid content | 70% (v/v) | Color | White Custom tinting upon request | |
| Wet weight | 0.65 (kg/l) | Coating per 1 liter * DFT:Dry Film Thickness | 2.33 m2, DFT(*) = 0.3 mm 1.40 m2, DFT(*) = 0.5 mm |
Test results of MetaShield (American standards (ASTM) and Japanese standards (JIS))
| Thermal conductivity (k) | ASTM C518-15 | 0.0545 (W/m.K) |
| Drying time | JIS K 5960:1993 | 0.2h (12 minutes) |
| Adhesion | ASTM 3359-97 | 100% adhesion |
| Pencil hardness | ASTM 3363-00 | 3.5N |
| Resistance to the effect of rapid deformation | ASTM 2794-93 | Dry film stands without destruction when load of 1 kg falls from height of 94 cm. |
| Bending strength | ASTM 522-93a | Stand without destruction at min cone diameter of 3.2mm |
| Heat resistance of paint (at 110 oC for 24 hrs) | ASTM D2485-91 | No blistering, no cracking and no loss of adhesion. No cracking when blending. |
| Film- formability at low temperature (5oC) | JIS K 5960: 1993 | No unsualness in film formation. |
| Washability | JIS K 5960: 1993 | Durable for 500 times washing. |
| Water resistance | JIS K 5960: 1993 | The sample is free from abnormality even when immersed in water for 96 hours. |
| Alkali resistance | JIS K 5960: 1993 | The sample is free from abnormality even when immersed in saturated solution Ca(OH)2 for 48 hours. |
| Salt resistance | JIS K 5400 : 1990 JIS K5600-6-2:1999 | The coating film is free from abnormality even when immersed in salt solution 3% for 96 hours |
| Acid resistance | JIS K5400:1990 | No blistering after immersing in sulfuric acid solution 5% for 24 hours |
| Lead (Pb) content, mg/kg | ASTM F963 | Not detected |
| Mercury (Hg) content, mg/kg | ASTM F963 | Not detected |
| Arsenic (As) content, mg/kg | ASTM F963 | Not detected |
| Cadmium(Cd) content, mg/kg | ASTM F963 | Not detected |
| Formaldehyde content, mg/kg | ISO 17226-1:2008 | Less than 5,0 |
F. COATING INSTRUCTION
Surface preparation
| Metal roof þ Remove any loose matter. þ Clean dirt, dust, oil and mould with water. þ Fix hole or crack with compatible paste, sealant. þ If surface is heavy rust, apply anti-rust Primer RS before apply InsuMax coating. þ If surface is new, use a light vinagar with water to washout oil and protective compound from the surface. | Concrete wall § Old wall þ Remove loose matter. þ Fix hole or crack with compatible mastic. § New wall þ Let the concrete wall completely cured and dried. (Normally concrete curing time 20 days) þ Applying suitable mastic when needed. Sanding by sand paper. |
MetaShield preparation
- Stir the paint thoroughly.
- Dilute with water if needed but not exceed 5%.
Coating
- Brush, roller or air spray.
- First layer: thin (less than 150 micron).
- Second layer: thick, followed the first dried layer, (normally 1 hour in sunny day).
- 2.33m2 coated per one liter, equivalent to dry film thickness of 300 microns.
- Notice: area of corrugated is always larger than plan (flat), so actual coating area = corrugated iron profile x extended coefficient.
Tool cleaning
- Empty hose and nozzle, fill with water and spray until clean.
- Use up remaining paint on roller or brush, wash completely. For the next use, soak roller or brush in water to prevent from drying.
G. STORAGE
- First in – first out basis (FIFO).
- Keep container closed while not in use.
- Store in dry and well ventilated condition, avoid direct sunlight.
- Keep out of reach of children.
- Shelf-life: 36 months.
H. PACKING
- 17 liter pail
- 5 liter pail
I. ENVIRONMENT & HEALTH SAFETY
- Non-hazardous components to the environment and health.
- Product is non-flammable and non-explosive.