| Customization: | Available |
|---|---|
| CAS No.: | 37955-36-5 |
| Formula: | CH4n2o |
|
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Polyurea protective material is the third-generation polyurea elastomer formed through on-site spraying of such raw materials as quasi-prepolymer, amine-terminated polyether and amine chain extender. As the revolutionary leap of the traditional construction technique, that technique organically combines the new materials, equipment and technologies, which is one of the most advanced construction techniques.
Features:
100% solid content, no VOC, no pollution, green, environmentally protective and environmentally friendly.
Fast curing speed, and no sagging under continuous spraying.
Not sensitive to moisture or temperature, with good thermal stability.
Good water resistance and protection performance.
Excellent physical performance and good adhesive force to substrate.
Excellent shock protection performance.
Application:
Polyurea protective material is mainly used for the EPS and PUF foam protection, voice box, body, sport field, etc. which has excellent shock protection performance.
Main performance indexes:
|
Solid content |
100% |
|
Gel time |
20 seconds |
|
Tensile strength |
20Mpa |
|
Elongation at break |
400% |
|
Tear strength |
81KN/m |
|
Hardness (Shao A) |
55~65 |
|
Shock resistance |
1.5Kg.m |
|
Abrasion resistance |
25mg |
|
Artificial climate aging (2,000h) |
Good |
|
Water resistance (30d) |
No rust |
|
Color |
It can be adjusted in accordance with user requirement. |
|
Density |
1.01g/cm3 |
All the parameters mentioned above are the physical properties tested after 7-day curing after spraying by professional equipment under laboratory conditions.
Drying time (25ºC) The surface will be dry within 2 minutes and can be off line within 10 minutes.
Thickness: 1-2mm (depending on user requirements)
Painting interval Minimum: no time limit; Maximum: not more than 3 hours.
Substrate treatment: EPS and PUF substrate don't need any treatment. Before spraying, the substrate surface shall be clean without oil stain or impurities.
Coating method:
The high-temperature and high-pressure impact mixing equipment specified by our company must be used during construction. The loss caused by using the equipment not verified to be feasible by our company for the construction is at your own risk.
Packaging specifications:
Material A: 220kg/barrel; Material R: 210kg/barrel. The packaging can be changed in accordance with user requirement.
Storage and transportation:
This product shall be stored in the shady and cool, ventilated and dry warehouse, and rain, sun and fire source shall be strictly prohibited, while it shall be far away from the heat source, and the storage temperature shall be 15-40ºC.
Under the condition of not opening the original packaging, the storage period of the product is 6 months since the production date, and if it exceeds the storage period, conduct inspection for the items specified by the product standard, and the product can still be used if it meets the technical requirements.
The product doesn't contain organic solvent, so it can be transported as non-dangerous goods. The transportation shall be strictly prevented from rain and sun, and shall conform to the relevant regulations of the transport department.
Labor protection measures:
When using the product, it is required to wear labor protection appliances like work clothes, goggles, gloves and gas mask.
Precautions:
During the construction, the substrate temperature shall be at least 3ºC higher than the dew point.
Fully stir component R until it is completely even before the construction.
The unfinished coating material of component A shall be sealed after filling nitrogen.
That system is 100% solid content, and the addition of any diluent is forbidden.
Good ventilation shall be guaranteed during the construction in a confined space.
Application of polyurea coating on speakers:
With the development of science and technology, multimedia technology is increasingly updated and improved, traditional speakers have been far from meeting the needs of the public. This also makes speakers enter millions of households, the market prospects are optimistic. The rapid development of loudspeakers and the rapid development of sprayed polyurea, so the cooperation between the two strong industries has become logical.
The use of coatings in speakers has a long history, and the speakers have put forward their own requirements for the role that coatings can play. First of all, waterproof and moisture-proof, especially the speaker with wooden substrate, is particularly important. Second, anti-scratch and anti-bump. Again, abrasion resistance. Of course, there is also its unique texture state, which greatly enhances the aesthetics of the product after molding and is unmatched by other coatings.
Traditional coatings are mostly solvent-based coatings, and they are mainly two-component. Although they can play a certain protection role, solvent-based coatings are highly toxic, dry slowly, have a single form, and are tedious in construction. The appearance of lightweight coating structures has become a hot trend.
The use of sprayed polyurea for speakers is also a major innovation for the speaker industry. Through repeated experiments and comparisons, different types of polyurea coatings have been developed based on different substrates, gradually replacing traditional coatings. On the friendly interface, fast and easy construction and diversification are also the best choice for environmental protection.
Use spray polyurea equipment to spray the surface of the box, which can be cured and formed instantly without affecting the transportation, greatly reducing the waiting time of the next process, and reducing the product accumulation rate of the spraying process. ° C environment, can be installed and used in two hours. Safe storage, completely eliminate hidden dangers of fire. The sprayed polyurea coating has good scratch resistance, impact resistance and abrasion resistance, good chemical resistance, low VOC, non-toxic and odorless. It can also be granulated on the surface and made into various textures. It is no longer a single rigid image and can meet the needs of different occasions. This quick and simple construction can further reduce labor intensity and greatly save labor costs.
1. Who are we?
Shandong Deshang Chemical Co., Ltd., affiliated to Zhishang Group, is a professional new chemical enterprise integrating R&D, production and sales. The company's dominant products are pharmaceutical raw materials and intermediates (standard pharmaceutical impurities), probiotics, organic intermediates, daily chemicals, inorganic chemicals, additives and catalysts, chemical reagents, and other industrial chemicals.
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