Introduction
SMP581 silane modified polyether sealant a one-component neutral-curing low-modulus sealant product with a joint movement capacity of class 20. The product has good bonding ability to most building materials and plastics such as concrete, stone, glass, aluminum, wood, polycarbonate (PC), etc. It can be widely used in prefabricated buildings, urban integrated pipe corridors, balconies and indoor and other fields of caulking and sealing of joints of internal and external walls of various buildings.

Product Features

• Environmental product: ultra-low VOC, non-toxic and tasteless, no pollution and no corrosion to the substrate;
• Good flexibility: low modulus, which can reduce the impact of internal stress caused by seam displacement changes on the durability of the sealant and reduce the risk of debonding and cracking. It has good flexibility and can maintain good bonding and sealing performance under the change of displacement of building joints.
• Excellent adhesion: excellent adhesion to most building materials and plastics such as concrete, stone, glass, aluminum, wood, polycarbonate (PC);
• The joint movement capacity is ±20%. For the normal expansion and shear deformation of building joints, this product can maintain the same performance and play an effective sealing and bonding effect;
• Excellent elasticity, weather resistance and fatigue resistance.
• Good paintability: the surface is paintable, and with Baiyun adhesion promoter, it can better solve the problem of decorative mortar, real stone paint and other finishing treatment on the glue surface.
• Good operability: One-component, easy to operate, has good extrudability in the range of 4℃~40℃, and can be applied by extruding with a sealant gun.

Main applications

• Caulking and sealing of internal and external walls of assembled buildings, urban integrated pipeline corridors and home interiors.
• Bonding of various building materials, such as concrete, stone, glass, aluminium, wood, etc.
• Other bonding and sealing applications in the construction field where this product is suitable.

Typical technical parameters

Usage restrictions

• Not suitable for use in locations where the operating temperature is permanently above 80°C.
• Not suitable for use in glass mounting applications.
• Not suitable for use in densely ventilated areas where the sealant needs to absorb moisture from the air to cure.
• Not suitable for use in areas subject to continuous water immersion or year-round humidity
• Not suitable for use on materials that will leach grease, plasticisers or solvents, such as surfaces of oil-impregnated wood.
• Not suitable for bonding polypropylene (PP), polyethylene (PE), polytetrafluoroethylene (PTFE).
• Not suitable for work when the surface temperature of the material is below 4°C or above 40°C.
• When bonding cement and concrete substrates, the substrate must be completely dry and maintained for 7 days before construction, otherwise the bonding performance will be affected.

Technical Services

• Complete product technical information is available.
• Adhesion testing, compatibility testing.

Our laboratory can provide contamination testing for our customers, who can mail (or otherwise) the substrate chosen for their project to us, and our laboratory will carry out the contamination test and issue a written test report

Storage and expiry date
Stored in a cool, dry place below 27°C. The storage period is 12 months from the date of manufacture.

Guarantee
BAIYUN has passed ISO9001/ISO14001/OHSAS18001 management system certification, and produces and controls product quality in strict accordance with the requirements of the ISO9001 quality system.

Our company will issue a sealant quality guarantee after the user has purchased the product and identified the construction unit and the project.

Repairs and maintenance
Generally, no maintenance is required, if the sealant seam is broken, replace the damaged part, simply remove the accumulated dirt with solvent and fill it with this product, Baiyun silane modified polyether sealant can be firmly bonded to the original cured Baiyun silane modified polyether sealant.

Package
Net 590ml flexible film packaging.

Color
White, Black, Grey or any other color requested by the customer.

Steps in use

Before using this product, the operator must read the product safety information carefully.

• The work surface must be clean, dry and free from dirt.
• Apply protective tape to both sides of the work surface and use a suitable lining material in the caulking.
• Cut the spikes to the required size and apply the amount of sealant to provide adequate contact with the sealant sealing surface.
• Trim and remove the protective tape within 10 minutes of application.
• Good ventilation should be maintained during the application and curing process.
• To ensure optimum bonding results, a bonding test should be carried out before the work starts and must be used in conjunction with a primer if necessary. Periodic peel and stick tests should be carried out during the construction process to ensure quality.

Safety instructions
This product is not toxic when fully cured, but contact with eyes should be avoided until cured, if contact is made, flush with plenty of water and seek medical attention; uncured product should be kept away from children.

Conformity to standards
ISO 11600 20LM
GB/T 14683 20LM
JC/T 881 20LM

Note to users: The information contained in this document is based on what we believe to be reliable information. Due to the wide variety of circumstances, it is not possible to know everything and therefore we cannot guarantee the correctness and suitability of our products for certain uses and applications. The user should understand the product in detail and carry out preliminary tests before using it and then decide for themselves the best way to use it.

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.