1. PolyurethaneFoam caulk Product Introduction and its main uses.

The full name of polyurethane foam caulking agent is one-component polyurethane foam caulking agent(OCF), commonly known as foam glue or foaming agent. It is aerosol technology and The product of cross-combination of polyurethane foam technology. It is a special polyurethane product filled with polyurethane prepolymer, foaming agent, catalyst and other ingredients in a pressure-resistant aerosol tank. When the material is sprayed from the aerosol can, the foamed polyurethane material will expand rapidly and react with moisture in the air or moisture in the substrate it comes in contact with to form foam. The cured foam has many functions such as caulking, bonding, sealing, heat insulation, and waterproofing. It is an environmentally friendly, energy-saving and easy-to-use building material. It can be used for sealing, filling and repairing, fixing and bonding, thermal insulation and sound insulation of doors, windows and curtain walls. It is especially suitable for sealing and plugging between plastic steel or aluminum alloy doors, windows and walls. water proof.

二, Why are there foam caulks on the marketwill leak?

The reason why foam caulking is waterproof is because This is because its cells have a closed-cell structure, and the closed-cell ratio of its internal structure should reach 80% to achieve effective waterproofing and heat preservation. However, driven by profit, some manufacturers deliberately reduce costs and increase the amount of white ingredients by adding fillers (adding powder, adding sand, adding oil). The products produced in this way not only have low foaming volume, but also have a large shrinkage rate.ThereforeSomeoneI thought of adding a pore-opening agent to open the foam, thus solving the shrinkage problem, but It’s such a bubbleInelastic and leaky, withstanding capacityInsufficient will cause safety hazards in the future.

Different weights (g) and different sizes (ml) foam caulking, and differentQuality, shouldHow to choose products that can meet your own requirements at a relatively low priceWhat? currently on the marketFoam caulkIt is roughly divided into two capacities<span style=";font-��After spraying80% has foamed, The degree of foaming at the back is very small, so that workers can control the strength of their hands well when using the foaming gun. It is simple and convenient without wasting glue, which greatly saves costs. Post-foaming means that after the glue is sprayed out, it gradually becomes thicker than when it was punched out. This makes it difficult for workers to control the strength of their hands to pull the trigger, and it is easy to waste glue.at leastWaste1/3. In addition, the post-expanded glue can easily crush doors and windows after curing. Anotheroutside：

1, why is there a small section that looks like water at the beginning of glue application?

Answer: Because of front foaming and rear foaming The reasons for this situation depending on the system are: ①The number of shakes before gluing is not enough. If unevenness occurs, the glue needs to be shaken up and down8-15 times;②Failure to apply glue in time after installing the gun will cause the pressure in the tank to rush into the barrel of the foaming gun, causing it to become as thin as water.

2What is the best way to apply glue to fill door gaps less than 1cm?

Answer: The methods for making door gaps smaller than 1cm are:①The glue speed is slower than usual;②You can also install a gun and shoot.

3, what is the reason why the product cannot be printed?

Answer: All products cannot be placed upside down at any time. Experiments have proven that if the product is placed upside down for about 15 days under normal circumstances, the valve will clogged. I hope everyone will pay more attention to the product‘sUse withstoreQuestion.