Although there are a lot of bubble fillers in the market, but the real price of the foam caulking agent needs to shine our eye gold eye to see one by one. Today, I'll show you how to identify a bubble filler:
First A, the adhesive force good B, the foaming hole should be fine, cannot have big hole C, can not shrink, so also can pull bad door. D, foaming amount of large E, polyurethane foam filler will be elastic after curing, generally poor quality of polyurethane foam filler is inelastic, as long as the force one press will fall down.
2. What is foam filler and foaming principle, use range, function:
One-component foam filled seam an agent is a product of the aerosol technology and the integration technology of polyurethane foam. It is a kind of polyurethane prepolymer, foaming agent, catalyst loading in pressure aerosol cans of special polyurethane products. When the material is ejected from the aerosol tank, the foaming polyurethane material rapidly expands and solidifies with the moisture in the air or contact with the substrate to form a foam. After curing polyurethane foam gap filling agent has the caulking, bonding, sealing, heat insulation, sound-absorbing effect, is a kind of environmental protection and energy saving, easy to use, building materials, is suitable for sealing leak, fills up the seams, fixed bonding, heat preservation and sound insulation, especially suitable for plastic or aluminum alloy doors and Windows and wall body between the seal and waterproof.
3. How to use and classify foam filler:
Foam gap filling agent points gun type and tube type (commonly referred to as a one-off) two kinds, tube is mainly used in retail design, that is to say, leakproof tube type is suitable for family blocking dosage is not big, easy to store and carry. And general tubular product quality is not very good, most of 750 ml packing and good quality products of the company is not using tubular, because tube type polyurethane foam gap filling agent of low pressure gun, sometimes can't clean to a certain extent, wasteful, prone to bet on the valve play not to come out wait for a phenomenon, in addition, tube type of polyurethane foam gap filling agent of polyurethane foam gap filling agent hole without gun type foam, relatively large expansion force. The gun is actually cheaper than the tube.
4. Methods and steps for the application of gun type foam filler:
Take a polyurethane foaming gun and use polyurethane cleaner to clean it. Take a bottle of foaming agent, hold the middle of the tank with the hand, and shake at least 20 times along the transverse direction of the tank. Make sure that the prepolymer is fully mixed in the tank. Remove the protective cover of the valve on the screw thread of the foaming agent, remove the cleaning agent from the foaming gun, and put the foaming agent on the interface of the foaming gun. Make sure the tank is placed on top of the tank, and the foam gun is below the tank, and the flow control valve at the rear of the foaming gun is opened. The gun is pointed at the bottom or the inside of the area to be filled, gently pull the trigger and start construction. The flow mediating valve behind the foaming gun can be adjusted to the appropriate flow. When the tank is finished, if you want to fill it, you can immediately remove the empty can and re-install the foaming agent according to the method of the first point, and continue the construction. After the completion of the construction, a special cleaning agent is changed to clean the foaming gun, so as to avoid the residual material solidification blockage to destroy the foaming gun.
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