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Hayacoat Mark2 (Spray type/yellow) (AY-302Y)

Original price ¥1,672 - Original price ¥1,672
Original price
¥1,672 - ¥1,672
Current price ¥1,672
(Prices include tax)


Insulating coating spray for substrates with excellent resistance to moisture and corrosive gases

Prices have been revised effective July 1, 2023.

Moisture and corrosion resistant coating agent with excellent gas barrier properties, effective against moisture and corrosive gases. It has excellent insulation properties and improves the insulation reliability of narrow patterns on printed circuit boards, etc. Protects PCBs from salt damage in corrosive gas atmospheres such as hot spring areas and coastal areas. Not regulated by the Ordinance on Prevention of Organic Solvent Poisoning. Four color variations are available.See color variations

Main specifications

Model No.
RoHS directive (10 substances)
1 piece
222g (290ml)
Product size (including packaging, approx.)
Weight (including packaging, approx.)
JAN code
Country of origin
Main ingredients
Polyvinyl resin
Yellow liquid
Volume resistivity
Dielectric Constant
3.4 (1MHz)
Dissipation Factor
Dielectric breakdown strength
Pencil hardness
Copper plate corrosion test
No discoloration (room temperature, 500h)
100/100 (Cross-cut method on copper foil plate)
Transmission humidity
<0.25 (g/m)2D, 100 μm)
Sulfurous acid gas resistance test
No corrosion on copper foil surface (30±2ppm, 48h)
Hydrogen sulfide gas resistance test
No corrosion on copper foil surface (30±6ppm, 48h)
Heat and humidity resistance test
No corrosion on copper foil surface (80°C, 90%, 168h)
Thermal shock test
No peeling or cracking (-40°C to 125°C, 100 cycles)
High temperature test
No change in insulation resistance (120°C, 500h)
Specific gravity
Continuous operating temperature range
Injection gas
Hazardous material and content under the Fire Service Act
Class 4 Petroleum No. 1 (non-water soluble) 185ml
Alcohol odor
Approximate area that can be applied
1.6m2(2 coats/10μm)

★Products are sold one at a time. Please refer to the following if you would like to consider per case.

Number of cases (boxes)
Small box 10 pcs / Large box 40 pcs
Small box size (approx.)
320 x 130 x 200 mm
Weight of small box (approx.)
Large box size (approx.)
280 x 340 x 420mm
Box weight (approx.)


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