October 26, 2022
NTT Advanced Technology Corporation

Developed and launched water-based super hydrophobicmaterial (HIREC® 300-W)- Super hydrophobic performance equivalent to HIREC 100, non-Dangerous Goods forshipment and storage, friendly to human and the environment
NTT Advanced Technology Co., Ltd. (NTT-AT, Headquarters: Shinjuku-ku, Tokyo, President and CEO:
Tadashi Ito) has developed a new product HIREC 300-W and will start selling it globally today. HIREC
300-W joins the HIREC series of super water-repellent materials that achieves super water-repellencywith over 150 degrees of initial contact angle.
HIREC 300-W contains almost no volatile organic compounds (VOC). Therefore, it is friendly tohuman and the environment, and has no flash point which brings benefits to its shipment and storage.
In particular, it can help us to significantly reduce shipping costs especially to foreign countries.
Besides, HIREC 300-W does not require thinner because it can be diluted with water. Furthermore, it
has a self-cleaning function equivalent to that of HIREC 100, which enables to maintain super water
repellency outdoors for approximately 3 years.
NTT-AT's HIREC super water-repellent material contributes to the maintenance of customers'
various facilities by preventing ice and snow accretion, snow and ice from falling, and unnecessary
electrical conduction caused by wetness.

■BackgroundA typical fluoropolymer coating has a water contact angle of about 100 degrees, which indicates goodwater repellency, However, HIREC, a super hydrophobic material, has over 150 degrees of excellent
initial contact angle.

■HIREC 300-W
HIREC 300-W is super hydrophobic, with over 150 degrees of initialwater contact angle, which is the hallmark of the HIREC series. Inaddition, the self-cleaning function equivalent to that of HIREC 100
ensures that the contact angle stays at 140 degrees or largerfor
approximately 3 years outdoors, an unparalleled performance. Whilemaintaining such superior water repellent performance of the HIREC
series, HIREC300-W is a water-based material that contains almost noVOC and is friendly to human and the environment, helps to protect
your equipment from water film, snow and ice.
HIREC 300 - W (in a plastic container)

Comparison with HIREC 100
HIREC 100

New product
HIREC 300-W

Initial contact angle

150 degrees or more

150 degrees or larger

Self-cleaning function

Yes (expected life: about 3 years)

Yes (expected life: about 3 years)

Dedicated thinnerTap water

Flash point (state of paint)

29°C

None

Container

Metal

Plastic

Brush, roller, air spray

Brush, roller, air spray

White OpaqueWhite Opaque

Item

Dilution solvent

Method of painting
Keynote color

Approx. no attenuation
Radio wave permeability

up to 40 GHz

Approx. no attenuation up to 40 GHz■Start offering
October 26, 2022

■Offered priceFor more information on usage, prices (estimates), etc., please refer the following contact:

Reference: Super water-repellent material "HIREC" series
Product name
HIREC 100

Main Applications

Features, etc.

Outdoor・Self-cleaning function
・Antenna (Parabola, Radome, etc.)
・White opaque (color changeable)
・Steel towers, bridges, wind turbines,
・Primer requiredetc.

HIREC 1100

・Quick and easy repair for a HIREC 100
Outdoorsurface・For repairs
・White opaque (color changing negotiable)

HIREC 450
・White opaqueIndoor
・One coat without primer
・Heat exchanger, filter, etc.
・Available only for air spray painting.

HIREC 1450NF

・Quick and easy repair for a HIREC 450
Indoorsurface
・For repairs
・White opaque*HIREC is a registered trademark of NTT Advanced Technology Corporation.
*The data shown is as of the date of publication. It is subject to change without any notice.

For further information:
Contact information for product inquiries
NTT Advanced Technology Corporation
Green & Product Innovation Division
Environmental Business Unit
In charge of HIREC
https://keytech.ntt-at.co.jp/en/environ/prd_40022.html

Press information
NTT Advanced Technology Corporation
Corporate Communications Division, Business Promotion Department
Responsible for: Kato or Masuda
E-mail: