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PU Prepolymer for Casting polyurethane elastomer parts
Charateristics
SMPU is a kind of multialkoxysilane terminated polyurethane materials. It has the silane-curing mechanism and the polyurethane backbone (the aliphatic urethane backbone), which combine the advantages of silicone sealant and PU sealant and overcome some drawbacks of them. The SMPU sealant can be used to replace the silicon, MS and PU sealants and adhesives in construction, automobile, train, shipping and container for sealing and adhesion.
Structure
Applications
Construction, buildings joint sealing need a low module sealant
Automobile assembly
Airport Road and Highway Construction,Bullet Train
Container
Boat, shipper
Properties
- Viscosity adjustable (from 30000 to 150000cps)
- Rheology and thixotropy control of liquid systems, binders,polymers,etc.
- Used as anti-setteling, thickening, anti-sagging agent
- Improvement of free flow and anti-caking charateristics of powders
- High transprancy
Products Lists
Properties | SMPU224 | SMPU225 | SMPU301 | SMPU401 |
Viscosity @25℃ (cP) | 40000±10000 | 50000±10000 | 30000±10000 | 15000±10000 |
Shore A hardness | ~35 | ~30 | ~25 | ~20 |
Stress (MPa) | ≥0.8 | ≥0.8 | ≥0.5 | ≥0.5 |
Elongation (%) | ≥180 | ≥200 | ≥150 | ≥100 |
Appearance | Yellowish to clear, colorless viscous liquid | |||
Anti-yellowing | Commonly | excellent | ||
We have the equivalent types of Cabot ,Evonik products.
Special packing is available on request.
Packaged in 200kg, 50kg and 20kg container.
Brief Introduction
- GBS, the leading enterprise of fumed silica industry in China
- Certificated by ISO9001:2008 /ISO 14001:2004
- Key drafter of China standard of fumed silica (GB/T 20020-2013)
- Building "Guangzhou Ultra Fine Powder Manufacturing and Application Center"
- Equipped with 29 sets of inspection machines for R&D
- Participating in more than 20 science & technology projects and applying for 36 patents and granted with 28
- Four manufacturing bases over Guangdong, Jiangsu, Hubei, Sichuan, with the capacity of 10,000 tons per year
- Rewarded as "Intellectual Property demonstration enterprise" in Guangdong China
Patents
- Method and device for on-line continuous surface treatment of hydrophilic nano silicon dioxide
- Continuous preparation process of high purity nano meter alumina
- Method for preparing hydrophobic type nano silicon dioxide through continuous surface treatment
- Preparation method of high-dispersion nano silicon dioxide
- Continuous preparation technology of high-purity low-viscosity dimethicone
- ...
- 36 patents in total
Honors
- IPR advantageous enterprises
- Association executive director of fluorine-silicon organic materials
- Practice base for graduates of South China University of Technology
- Nano-materials R & D Center
- Drafter of China standard of fumed silica
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