Skip to content
Free shipping on orders over 2000 yen! (First-time free shipping coupon available here)
Free shipping on orders over 2000 yen!
(First-time-only free shipping coupon is distributed here.)

Inpay Black (10kg) (BLK-L1201)

Original price ¥42,812 - Original price ¥42,812
Original price
¥42,812 - ¥42,812
Current price ¥42,812
(Prices include tax)

For blindfolding component names and patterns on assembled boards

Prices have been revised effective July 1, 2023.

The black liquid containing silica sand hardens so hard that it is difficult to peel off or cut. It is a two-component epoxy potting agent, and curing begins when the hardener is mixed with the base agent. It is available in four variations with different contents.See variations with different content amounts

Main specifications

Model No.
RoHS Directive (10 substances)
1 set
10kg (4.3L)
Product size (including packaging, approx.)
260 x 400 x 300 mm (main agent and hardener included)
Weight (including packaging, approx.)
JAN code
Country of origin
Volume resistivity
1.0×1014Ω-cm (1MHz, 500V applied)
Dielectric constant
4.3 (1MHz), 3.8 (100MHz)
Dielectric breakdown strength
50 kV/cm min.
Pencil hardness
Operating temperature range
-30 to 250°C (however, physical strength may decrease at temperatures above 80°C)
Hazardous materials and content under the Fire Service Law
Main agent: 10 kg of designated combustibles (combustible solids) for 3 tons or more, hardener: 835 ml of Class 4 Petroleums No. 3 (non-water soluble)
Tack-free time
40-50 minutes (cube with 1 side 10cm/20℃)
Curing time
1 - 1 hour and 20 minutes (10 cm cube per side / 20°C)
Heat resistance
Physical strength may decrease at temperatures above 80°C


Customer reviews are where users post their opinions about our products. Please use it as a reference when selecting a product. Please note that the content of these reviews is not necessarily endorsed or recommended by Sanhayato.

Please note the following when submitting a review. Reviews with significantly deviant content will not be published.

  • Submission of content other than that of the product
  • Submissions that include slanderous or defamatory expressions about other people (individuals, products, or companies)
  • Submissions containing personal information or personally identifiable information
  • Postings that promote profit, advertising, or inducement