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What is the Pu Foam filling machine?
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What is the Pu Foam filling machine?

Views:186     Author:Site Editor     Publish Time: 2021-09-13      Origin:Site

Pu Foam filling machines are special polyurethane products filled in pressure-resistant aerosol tanks. When the material is ejected from the aerosol tank, the foam-like polyurethane material expands rapidly and reacts with the moisture in the air or contact substrate to form a foam. Cured foam has fill, bond, seal, insulation, sound absorption, and other effects, is an environmental protection and energy-saving, easy to use building materials, the scope of application is more extensive. Now, let's take a closer look at Pu Foam filling machine.

 

Here is the content list:

Performance instructions for polyurethane foam fillers

Typical applications of polyurethane foam fillers

How to use polyurethane foam fillers

Precautions for polyurethane foam fillers

 

Performance instructions for urethane foam fillers

The usual table dry time is about 10 minutes, the dry time varies according to ambient temperature and humidity, in general, the summer dry time is about 4-6 hours, and the winter zero degrees or so takes 24 hours or more to dry out. Under normal conditions of use, it is estimated that the service life of urethane foam fillers is not less than ten years. In addition, its flame-retardant polyurethane foam filler flame retardant level can reach B and C grades.  

 

A typical application of urethane foam fillers

First, it can be used for door and window installation: the gap between the door and window and the wall seal, fixed bonding.  The second can be used for advertising models: model, sand tray production, display board repair.  The third can be used for sound insulation silence: voice room, broadcast room, and other decoration gaps to fill can play a soundproof silence role.

 

How to use urethane foam fillers

Shake the Pu Foam filling machine tank for at least 60 seconds before using the urethane foam filler to ensure that the material in the tank is uniform.  When filling vertical gaps should be down,  filling such as gaps in the ceiling, due to gravity, the uncured foam may fall, it is recommended to just fill the urethane foam filler after appropriate support until the foam curing and bonding with the seam wall before withdrawing the support.  After 10 minutes or so, the foam is de-adhesive and can be cut after 60 minutes. Cut off excess foam with a knife and apply cement mortar, paint or silicone to the surface.

 

Precautions for urethane foam fillers

Pu Foam filling machines are wet curing foams that should be sprayed on wet surfaces when used, and the higher the humidity, the faster the curing. Uncured foam can be cleaned with a cleaning agent, while the cured foam is removed mechanically by mechanical method.  The cured foam will turn yellow when exposed to ultraviolet light, and it is recommended to apply other materials to the surface of the cured foam.  

 

Since the 2000 products in the domestic promotion and application, polyurethane foam filler market demand rapidly expanded, the annual use of the national construction market in 2009 has exceeded 80 million cans, with the improvement of building quality requirements and the promotion of energy-saving and consumption-reducing buildings, Pu Foam filling machine will continue to grow steadily in the future.


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