Single-component polyurethane foam, as a multifunctional material, is widely used in various fields. Its main functions are filling, sealing and bonding, and many problems may occur during use. The following is a brief introduction to the application and precautions of the product

Polyurethane foam (PU foam), the full name of which is single-component polyurethane foam sealant, is a moisture-curing, multi-purpose elastic sealing material, commonly known as foaming agent, foaming glue or PU sealant. It is made by combining aerosol technology with polyurethane foam technology by filling components such as polyurethane prepolymer, foaming agent, and catalyst into a pressure-resistant aerosol can. When the material is sprayed out of the can, it expands rapidly and reacts with the moisture in the air or matrix to solidify, forming a foam structure with functions such as caulking, bonding, sealing, heat insulation, and sound absorption. It is an environmentally friendly, energy-saving, and convenient building material.

As a high-performance elastic sealing material, polyurethane foam has become an indispensable and important material in modern building decoration and industrial manufacturing due to its excellent filling, sealing and bonding properties. It is mainly used for filling and sealing of building door and window seams, component expansion joints and various holes, and plays a key role in thermal insulation, waterproofing and moisture-proofing, sound insulation and noise reduction. This material relies on moisture in the environment for curing reaction. According to the use method, it is mainly divided into two types: gun type and tube type: the gun type needs to be used with a special polyurethane foaming gun, which is suitable for professional construction and large-area operations; the tube type comes with a disposable hose, which is easy to operate and more suitable for small-scale repairs and home DIY use.

Many people have insufficient understanding of the performance of silicone sealants and often confuse the use of neutral silicone sealants with Acetic silicone sealants, which is a common issue in their application. So, what exactly are the differences between Acetic silicone sealants and neutral silicone sealants? This article will provide a detailed analysis of the characteristics and application scenarios of these two types of silicone sealants.

Silicone sealant is a widely used building material. Its advantages are environmental protection, non-toxicity, good weather resistance, high and low temperature resistance, strong bonding, etc. So how to use silicone sealant?