Casting polyurethane prepolymers involves a process where a liquid mixture of polyols and isocyanates is poured into a mold or container and allowed to cure or solidify. This process is commonly used in various industries such as automotive, construction, and manufacturing. Polyether Polyurethane Prepolymer,Cpu For Elastomers,Polyseter Prepolymer For Ring,Prepolymer For Pu Plate XUCHUAN CHEMICAL(SUZHOU) CO., LTD , https://www.xuchuanpu.com
Aohai Marine specialize in manufacturing marine airbags and pneumatic rubber fenders for 15 years.We have established long-term cooperation relationship with many shipyards and ship owners, trading companies in China mainland.
We also export to Malaysia, Singapore, India, Indonesia and many other countries in the world .Including :Mearsk , MSC, COSCO, CMACGM, OOCL, APL, NYK , NEW YORK port, KOBE port, YOKOHAMA port, Singapore port, ANTWERP port, LONDON port, HAMBURG port, DUBAI port, QINGDAO port, SHANGHAI port etc.
2.Product description
Product Name:3.3*6.5m 3300X6500mm High Quality Cylindrical Rubber Fender With Galvanized Chain
3.Production line of Pneumatic rubber fender
♦ Aohai marine specializes in the production of pneumatic fender and other type fenders since 2002.
♦ Pneumatic rubber fenders use the best materials (Thailand natural rubber RSS3) and can reuse 6-8years without misuse.
♦ Our factory paied attention on product quality for over 20years to make sure our customers use well.
♦ Low counterforce and high energy-absorbing fenders with CCS,BV certificate.
♦ We support customers worldwide, such as Bangladesh Navy, France Navy, Italy Navy,etc.
4.Application of Pneumatic rubber fender
1. Ship to ship berthing
Accompanied by a large ship, the risk of two ship berthing at sea is also increased, especially when the weather changes, accompanied by wind and waves.Adopt pneumatic fender as side of the buffer, not only make heavy berthing becomes easy, and improve the efficiency of the transportation operations. Pneumatic fender is mainly used for: Ice in the Antarctic ocean fishing ships, large oil tanker berthing.
2.Used for terminal dock protection
Of the ship is very large, the cause of berthing impact energy have multiplied.Inflatable rubber fender because of its high energy absorption and low reaction force features are widely used.
5.Package and Delivery
6.FAQ
Q:What's the material of your products for 3.3*6.5m 3300X6500mm High Quality Cylindrical Rubber Fender With Galvanized Chain?
A:Our raw material is natural rubber,RSS3 which is imported from Thailand,Rubber-dipped nulon cord fabric.
Q:How long is the guarantee period for 3.3*6.5m 3300X6500mm High Quality Cylindrical Rubber Fender With Galvanized Chain?
All of our aribags have 3 years guaratee period.
We will responsible for the repairment or replace the new ones for you if it proved to be our quality problem.
Q:What's your delivery time and payment terms for 3.3*6.5m 3300X6500mm High Quality Cylindrical Rubber Fender With Galvanized Chain?
A:Delivery time is according to customers'Â size and order qty.T/T 30% in advance ,the balance before shipment is our usual payment terms.Also customer could choose western union or others.
Q:How about the lifespan of your pneumatic rubber fender?
A:Desighne lifespan of your pneumatic rubber fender is 8-10 years.
Q:What kind certificate you can provide?
A:CCS,BV etc. Certificate is available.
Q:How can i get samples from you?
A:1)We are honored to provide you samples for check quality.Customers just confirm freight collect and then we could send out the sample.As to samples charges,we could deduct from total amount of formal orders.
 
8.Payment Terms
Here is a step-by-step guide on how to cast polyurethane prepolymers:
1. Prepare the mold: Clean the mold thoroughly and ensure it is free from any debris or contaminants. Apply a mold release agent to facilitate the easy removal of the cured polyurethane.
2. Measure and mix the components: Measure the desired amount of polyol and isocyanate components. The specific ratio will depend on the desired properties of the final product, which can be found in the product's technical data sheet. Pour the measured components into a clean mixing container.
3. Mix the components: Use a mechanical mixer or a high-speed drill with a mixing attachment to thoroughly mix the polyol and isocyanate components together. Make sure to mix for the recommended amount of time specified by the manufacturer to ensure complete homogeneity.
4. Degassing: After mixing, it is important to degas the mixture to remove any trapped air bubbles. This can be done by placing the mixture in a vacuum chamber and applying vacuum pressure for a specified period of time. Alternatively, a vacuum degassing unit can be used.
5. Pouring the mixture: Once the mixture is properly degassed, pour it into the prepared mold or container. Take care to avoid introducing any additional air bubbles during the pouring process.
6. Curing: Allow the poured mixture to cure at room temperature or, if necessary, in a temperature-controlled environment. The curing time will vary depending on the specific polyurethane prepolymer used and the desired hardness or flexibility of the final product. Follow the manufacturer's recommendations for curing time and temperature.
7. Demolding: After the polyurethane has fully cured, carefully remove it from the mold or container. Use caution to prevent any damage to the cured part.
8. Post-curing (optional): Depending on the specific polyurethane prepolymer used, post-curing may be required to optimize the material's properties. This can be done by subjecting the cured part to elevated temperatures for a specific period of time.
It is important to note that casting polyurethane prepolymers requires proper safety precautions, such as wearing appropriate personal protective equipment (PPE) and working in a well-ventilated area. Always follow the manufacturer's instructions and guidelines for handling and working with polyurethane prepolymers.
3.3*6.5m 3300X6500mm High Quality Cylindrical Rubber Fender with Galvanized Chain
Model NO.: AH-FD13
Part: Fender, Bumper
Service Life: 10-20years
Certification: BV, ISO9001, CCS, ISO17357, ABS, Dn
Engine Type: Outboard
Capability: Water Rubber Hose
Load Capacity: >8000teu
Usage: Trade, Ship Launching, Protection, Ship Doc
Trademark: AOHAI
Transport Package: Nude Packing
Specification: 0.5m*1.0m-4.5*12m
Origin: Jiangsu, China
HS Code: 40169400
1.Our company
 2)Our location is convenient for any internation express company to pick up packages.Such as Feded,DHL,UPS.
7.Contact us for more