● INTRODUCTION
·4120Q, which is a condensed 2-part silicone sealant and can cure at room temperature, is suitable for molding intricate electronic parts as its low viscosity.
·Otherwise ,it is non-corrosive and suitable for adhering many substrates.

● FEATURES
·Suitable for molding intricate electronic parts because of its low viscosity.
·Excellent impact resistance because it forms an elastic silicone rubber after curing.
·Excellent heat resistance, damp resistance and freezing resistance.
·Non- corrosion to the substrate as it is dialcohol curing type.
·Excellent adhesion to many substrates without primer ,especially to PC and Epoxy.

● APPLICATIONS
·The fixation and the insulation of the electronic parts.
·Damp-resistance and water resistance for electronic parts and PCB boards.
·Potting of LED displays.
·Other general insulation molding.

● HOW TO USE
·Before mixing, part A should be stirred adequately in container ,and part B should be shaken well in container.
·Before application, you should confirm that its adhesion to
the substrate is well.
·Generally, the mixing ratio of part A and part B is 10 : 1.
If you want to change the curing conditions, a simple test is necessary before used .The curing time and pot life will be decreased while the amount of part B increasing.
·The extra bubble removal is not necessary when molding depth is less than 5 mm. Otherwise , it should be vacuumized at 10mmHg for at least 5 minutes to remove the bubbles. Otherwise, it will influence the surface appearance.

●TYPICAL PROPERTIES
As Supplied(25℃,65％RH)
Part
4120Q A
4120Q B
Color
Black
Translucent
Viscosity(cp)
1600
15
Specific Gravity
1.15
0.95
Properties after mixing(25℃,65％RH)
Mixing Ratio(weightratio) A:B = 10:1
Color Black
Mixture viscosity (cp) 1200
Pot life (min) 30
Curing time (h) 24
Cured 7 d,25℃,65％RH
Durometer Hardness, Shore A 0-5
Tear strength( Kgf/cm2 ) 0.7-0.8
Elongation at break( % ) 160-180

● PACKAGING
·Packing: A:20kg B:2kg
● USEABLE LIFE AND STORAGE
·When stored at 8-28℃ in the original unopened containers, this product has a usable life of 12 months from the date of production.
·Special precautions must be taken to prevent moisture from contacting Part B. Containers should be kept tighly close.

Huitian New Material (stock code: 300041) is the oldest enterprise in China's adhesive & new material industry, with 46 years of development history, focusing on research and development, constantly breaking through the innovative technology of adhesive new material, taking the lead in solving the problem of necklace. With over 2,000 products spanning six disciplines, our offerings find extensive application in new energy, transportation, 5G communication, consumer electronics, aerospace, and beyond. We are committed to delivering new material one-stop solutions for high-end manufacturing industry head customers.

Huitian New Material has 6 R&D bases in Shanghai, Guangzhou, Xiangyang, Yicheng, and Changzhou, as well as industrial bases in Vietnam, providing customers with a stable supply of multi-series, high-quality products, and possessing a large-scale manufacturing capacity; the existing core R&D team consists of more than 300 people with PhDs and master's degrees, and it is the first "National Enterprise Technology Centre" in the domestic adhesive new material industry. Huitian New Material has been continuously investing in R&D for a long time, a joint development with customers, and forward-looking product reserve, constantly refining sustainable R&D capability; Huitian people's high-efficiency organizational force quickly responds to customers' needs and empowers and adds value to customers' products.

Huitian New Material was founded in 1977. Its predecessor was the earliest domestic research unit engaged in the research and development of adhesives. It is also a private high-tech enterprise transformed by a batch of research institutes in the country according to market-oriented operation. The company has a deep professional and technical accumulation and has been identified as a provincial-level post-doctoral industrial base and a national-level post-doctoral scientific research workstation.

In 2012, Huitian and the Chinese Academy of Sciences jointly set up the "High-Performance Adhesive Material Engineering Technology Center".

In 2013, Huitian Group inaugurated a new base and R&D center at its Shanghai headquarters to create a world-class adhesives R&D center.

In 2015, Huitian was awarded the National Enterprise Technology Centre jointly recognized by the National Development and Reform Commission, Ministry of Science and Technology, Ministry of Finance, General Administration of Customs, and General Administration of Taxation.

In 2017, Huitian Vietnam Yueyou Co., Ltd was established to start the road of overseas expansion.

In 2019, the Huitian Group set up overseas offices in Europe, America, and Southeast Asia to accelerate its overseas business development.

In 2022, Huitian New Material Japan Co., Ltd was founded and Huitian Vietnam Yueyou Co., Ltd opened a new office in the north part.

In 2023, Vina Evergreen Advanced Material Company Limited was established to invest in the overseas market, localization starts at the same time as internationalization.

In 2024, the Vietnamese factory of Huitien New Material starts production in BW Industrial Zone, Hai Duong, Vietnam, taking the first step toward overseas production.

Huitian New Materials has successively won the key high-tech enterprises of the National Torch Plan, China's well-known trademarks, China's Top 10 Most Valuable Investment Values, China's Adhesive Products Customer Satisfaction Brand, China's Top Ten Innovative Materials Enterprises, Patent Pilot Enterprises, and A series of precious honors such as honest taxpayer unit. The company has donated more than 20 million yuan to society and won the "Outstanding Contribution Award for Chinese Charity" twice.

Vision

Become the preferred expert for customers in adhesives and new materials

Bent on catching up with the world's advanced-level

Mission

Industry Serves the Country, Repays the Society

Values

Customer-centric, striver-oriented

Long-term hard work and continuous self-criticism

Culture

Competition, Reward, Innovation, Gratitude