Product Details
BAIYUN ® SMP321 MS Sealant for bonding windshield of automotive
trains
SMP321 locomotive silane modified polyether adhesive is a
one-component, high performance, neutral curing adhesive. The
product is environmentally friendly, does not contain toxic and
hazardous substances, and has good bonding ability to most
substrates such as metal, glass, ceramics, wood, polyvinyl chloride
(PVC), polycarbonate (PC), etc., and the surface can be finished
after curing. It can be widely used for bonding and sealing of
windshield and side window glass such as various trains/buses/cars.
1. Product Features
- Environmentally friendly products: fast curing, low VOC, non-toxic
and tasteless, no pollution to the substrate, no corrosion.
- The surface can be painted: the surface of the surface can be
painted with paint.
- Good operability: single component, easy to operate, good
extrudability in the temperature range of 4 ° C ~ 40 ° C, can be
directly applied by glue gun extrusion.
- Excellent adhesion: Excellent adhesion to metals, glass, ceramics,
wood and PVC, PC, PA and other materials.
- Excellent weathering, aging, dielectric and mechanical properties.
2. Applications
- Bonding and sealing of windshields and side windows such as
trains/buses/cars/trucks.
3. Typical Technical Data
Inspection Items | Test Results | Test Standards |
Color | Black/White/Grey | |
Curing way | Curing by moisture | |
Working Temperature (℃) | -40~100 ℃ | |
Tack-free time(min) | 20~30 | GB/T 13477-2002 |
Curing Speed(mm/24h) | 4~5 | |
Density(g/cm3) | 1.4 | GB/T 13477-2002 |
Hardness (Shore A) | 50 | GB/T 531-2009 |
Tensile Strength(MPa) | 3.5 | GB/T 528-2009 |
Break Elongation (%) | 400 | GB/T 528-2009 |
Shear strength (MPa) | 2.5 | GB/T 7124-2008 |
Tear strength(N/mm) | 20 | GB/T 529-2008 |
Shelf life(month) | 9 | |
4. Standards
- The product meets or exceeds the requirements of the corporate
standard Q/BYHG 3.
5. Package
- Packed in plastic barrel with net capacity of 300ml or 590ml
sausage
6. Technical Service
◆ Provide complete technical data of products;
◆ Debug products formulation as required by users, meet
requirements of users to certain special performances of products;
◆ Provide adhesive test for users, appraise adhesive performance of
rubber products for industry of the company and material selected
by users, and offer the contents such as in experimental results,
recommended surface washing method of products and whether priming
or not in writing to users;
◆ Welcome users to cooperate and communicate with our engineers to
discuss and find out resolving plans together.
7. Notices
- The product is nonpoisonous after curing completely, but it should
be avoided connecting with eyes and children before curing. It
should be noticed to ventilate for work environment.
8. Storage Period
- Kept in shade and dry place under the temperature 27℃, useful life
of neutral sealant is 9 months (since production time).
9. Safety Instructions
- This product is not toxic after it is fully cured, but should avoid
contact with eyes before curing. If it is in contact with eyes,
please rinse with plenty of water and consult a doctor; uncured
products should be kept out of contact with children.
10. Guarantee
- The company has passed ISO9001/ISO14001/OHSAS18001 management
system certification, and strictly produces and controls product
quality according to ISO9001 quality system requirements;
11. Purchase Methods
- Users can go directly to Guangzhou Baiyun Chemical Industry Co.,
Ltd. or regional agents designated by the company to ensure the
quality and authenticity of the products.
Notice for users: The contents issued by the paper are reliable
data. As the actual cases differ, we cannot grasp all conditions.
Therefore, we cannot guarantee accuracy and adaptability of our
products on certain usage and application. Users should understand
products in detail before using them, and then determine the best
usage relying on their own minds.
Company Profile

Humanity's desire for a better life has never changed. Wonderful
life will become more and more vivid due to professionalism and
foresight. With a pure heart and long-lasting faith, Baiyun
Technology, founded in 1985, adheres to the heart of a craftsman
and is committed to providing sealing and bonding system solutions
for building curtain walls, insulating glass, doors and windows
,civil buildings, prefabricated buildings, home decoration and
lighting, electrical appliances, home furnishings, energy,
transportation, electronics and other industrial fields, leading
the industry in safety, health, green sustainable development.
Baiyun is your perfect choice.
Baiyun Technology promises: "Better future, excellent life".
Baiyun is the one of the first production and sales enterprises for
silicone structural sealant which was approved by the State
Economic and Trade Commission. Our company was the only one of the
industry which was rated as “demonstration base for the
industrialization of the new technology of building sealant” by the
Ministry of Construction, and Baiyun has been rated as the
“International Cooperation Base” as awarded by the Ministry of
Science and Technology of the State, and the “one of the first
prefabricated building industrial bases of the State” as awarded by
the Ministry of Housing and Urban-Rural Development. Moreover,
Baiyun is the key high-tech enterprise of the national torch
program and is the enterprise with Chinese famous trademark as
approved by the Trademark Office under the State Administration of
Industry and Commerce.
Our company has established China’s first automatic continuous
production line which boasts the world’s advanced level and
proprietary intellectual property right. We also have over 430
patents (The patent for invention accounts for over 60%) and the
first CNAS laboratory of the industry whose testing ability covers
five standards. Baiyun has involved in the drafting and revision of
220 international and industrial standards and in the revision of
six international standards. Baiyun has also established a
provincial technical center, an engineering technological research
and development center, a post-doctoral research center, and an
enterprise workstation for expert academician. Baiyun works in a
professional, devoted and concentrated way and strives to play a
leading role in the chemical new materials realm and to allow users
to have wonderful experience for using our product.
Confident and passionate Baiyun staff who are full of
self-improvement and sunshine adhere to the core values of “sense
of responsibilities, create value and share fruit” and learn their
responsibilities by heart whist never forgetting their original
intention. All our staff shall work hard to realize the corporate
vision of “leading sealant brand of the world” and to become your
most loyal alliance of responsibility.
Baiyun promises to work with you to beautify the city and march
toward a brilliant future and an outstanding life.