Door and window foaming glue, sealant, glass glue

[China Glass Network] Polyurethane foam (OCF) is a product of the cross-combination of aerosol technology and polyurethane foam technology. It is a special polyurethane product which is filled with a polyurethane prepolymer, a foaming agent, a catalyst and the like into a pressure resistant aerosol can. When the material is ejected from the aerosol can, the foamed polyurethane material rapidly expands and solidifies to react with the air or the moisture in the contacted matrix to form a foam. The cured OCF foam has various effects such as caulking, bonding, sealing, heat insulation and sound absorption. It is an environmentally-friendly and energy-saving building material that can be used for sealing and sealing, filling and filling, fixing and bonding. Thermal insulation and sound insulation, especially suitable for sealing and waterproofing between plastic steel or aluminum alloy doors and windows and walls.

It is used for sealing, insulation and filling of wide interfaces, gaps and cracks. It can be used for heat preservation, cold resistance, dry resistance, sound insulation and moisture resistance. Like gaps between partitions and ceilings, sashes, door frames, holes between walls, gaps between roofs and chimneys, walls, ceilings, seals around roof ducts, and holes and damage in walls. Can be used for bonding a variety of materials, such as metal, wood, stone, concrete and a variety of synthetic materials, such as polyester, polystyrene foam, PVC plastic, rigid polyurethane foam. Bison's styrofoam is not suitable for polyethylene, silicone and Teflon.

Sealant

A sealing material that deforms according to the shape of the sealing surface, is not easy to flow, and has a certain adhesiveness. It is an adhesive used to fill the gap of the configuration to seal.

It has the functions of anti-leakage, waterproof, anti-vibration, sound insulation and heat insulation.

Usually based on dry or non-dry viscous materials such as asphalt, natural or synthetic resin, natural rubber or synthetic rubber, combined with inert fillers such as talc, clay, carbon black, titanium dioxide and asbestos. It is made of a plasticizer, a solvent, a curing agent, an accelerator, and the like.

Can be divided into three types of elastic sealant, liquid sealant and seal putty.

Widely used in the sealing of construction, transportation, electronic instruments and parts.

Building sealant is used for the sealing of various joints or holes in buildings to prevent the penetration of gases, liquids and solids, and to prevent the structural materials from being damaged when the structure is displaced, thus maintaining insulation, sound insulation, waterproof and dustproof. , gas, fire, corrosion, shock absorption and the function of preventing seams from accumulating foreign matter.

Building sealants can be classified according to their composition. Nowadays, there are many kinds of polysulfide rubber, neoprene, acrylic, polyurethane, butyl rubber, silicone rubber, rubber-plastic composite, thermoplastic elastomer, etc. Hot-coating type, cold-coating type, curing reaction type, solvent evaporation type, etc.; can also be divided into doors and windows, caulking, waterproof and shockproof, prefabricated wall and so on. The basic types of building sealants are listed in the table. Glass glue is a commonly used adhesive in households. Its main component is sodium silicate (Na2O?mSiO2), which is easily soluble in water and sticky. It is also called water glass in the south and soda alkaloid in the north.

Sodium silicate is a colorless, slightly colored transparent or translucent viscous liquid in a system in which water is used as a dispersing agent.

Solid sodium silicate is a colorless, slightly colored transparent or translucent glass block.

The form is divided into liquid, solid and water quenching. In theory, these substances are called "colloids."

Ordinary sodium silicate is a slightly light blue block or granular solid, which is a slightly colored transparent or translucent viscous liquid after high temperature and high pressure dissolution.

1. Whether the glass glue is good or bad can be investigated from the aspects of viscosity, tension, whether it is mildewproof, easy to clean, whether it will change color, etc. From the color point of view, glass glue has various colors, white, black, color, etc., and transparent colour.

2, acid silicone glass glue: a wide range of bonding, for most building materials such as glass, aluminum, oil-free wood and other excellent adhesion. However, it cannot be used to bond ceramics, marble, etc.

3, neutral silicone glass glue: can be used to bond ceramic sanitary ware, marble and so on.

4. There are many varieties of glass glue on the market, such as acid glass glue, neutral weathering glue, silicic neutral structural glue, silicone stone glue, neutral mold glue, hollow glass glue, aluminum plastic plate special glue, aquarium Special glue, large glass special glue, bathroom anti-mold special glue, acid structural glue and so on.

Read the instruction manual carefully before purchasing glass glue.

Although glass glue is very inconspicuous, it is an auxiliary material that is frequently used in the home decoration process, such as the countertop and kitchen wall, the fixed basin and the toilet. Some consumers often don't know the performance of glass glue, they often "come two bottles", no matter what material is glued, the same glass glue is used. In fact, different conditions apply to different properties of glass glue. If the wrong glass glue is used, it will cause the rubber strip to break, mold, and even the window leaks, the table surface leaks and other troubles. Therefore, consumers should choose the glass glue according to the specific use.

Different performances are different

Glass glue for home decoration is mostly silicone material, which is divided into three types according to their properties: neutral glass glue, acid glass glue and water glass glue. Acidic glass glue has strong bonding force and is corrosive to some materials. It is suitable for materials with limited irritating taste. Neutral glass glue is suitable for marble, metal, glass and other materials. The irritating taste is smaller, but the bonding force is small. Relatively weak; water-based glass glue, weak bonding force, slow curing process, but can be painted on dry after drying, less used in the home decoration process.

Many people do not understand the performance of glass glue, it is easy to use neutral glass glue and acid glass glue, causing unnecessary trouble, such as the use of acid glass glue to install the mirror will cause the mercury on the back side to be corroded.

Most of the glass glues currently on the market also have functions such as mildew resistance, weather resistance (high temperature resistance, low temperature), and consumers should choose according to actual needs. In general, bathroom basins and toilets, kitchen countertops should choose glass glue with anti-mildew properties, acidic or neutral; metal ceiling, shower room, mirror should choose mildew-resistant neutral glass glue , but not acidic; smoke machine stoves, windows should choose weather-resistant glass glue. The fish tank has high requirements on the waterproof and bonding properties of the glass glue. The acid structure type sealant should be used, and the new type glass glue of polyurethane type can also be used.

Most glass adhesives are marked with the material to be bonded, and some are marked with different bonding strengths. Consumers should be able to read the instructions carefully when purchasing glass glue.