Unsaturated polyester resin is commonly used to prepare synthetic fibres, adhesives, coatings, plastics and insulation materials. With the advantages of heat resistance, chemical resistance, good mechanical properties, electrical separation and excellent manufacturing process, unsaturated polyester resin is often used as a matrix material in mixed materials with its multiple characteristics. It is widely used in various fields, such as transportation, infrastructure engineering and shipping.

1. unsaturated polyester resin production capacity is rising.

Throughout the unsaturated polyester resin industry chain, up and down for the upstream raw material suppliers, raw materials are:

Mainly styrene, ethylene glycol, propylene glycol, diethylene glycol, etc.

Midstream unsaturated polyester resin production enterprises.

Downstream applications mainly concentrated in glass fibre-reinforced plastic composites, artificial stone, handicrafts and coatings and other industries.

Data show that global styrene production capacity was about 34.62 million tons in 2019, and this value is expected to reach 42.57 million tons by 2023, with a capacity growth rate of 8% in 2021. Domestic self-sufficiency will be the trend in styrene shortly. The main competition in the styrene industry in the future is cost. Its costs include raw material costs as well as logistics costs. Refined ethylene costs and styrene integrated companies undoubtedly have a relative competitive advantage, but non-integrated companies will also minimize raw material procurement costs.

2. unsaturated polyester resin downstream applications are widespread and in full demand.

Unsaturated polyester resin downstream of the main demand areas includes glass fibre-reinforced plastic materials, artificial stone and coatings and other industries. In the composition of demand, the highest percentage of demand for FRP composites, accounting for more than half of the market demand, 55%, followed by the field of artificial stone, accounting for 30%, in addition to coatings accounting for 15%.

Due to the characteristics of FRP perfectly fitting the requirements of light trains and fire and noise reduction, such as low density, high specific strength, high specific stiffness, good flame retardancy and sound insulation, FRP is gradually gaining popularity in the field of rail transportation. The density of FRP material is about 23 steel and 66% aluminium alloy, and its high strength can be comparable to ordinary carbon, which is usually used for interior decoration materials, bodywork, bogies and other areas.

In the field of architectural decoration, artificial stone, because of its excellent wear resistance and hardness, has become a new popular green building decoration material and is beginning to replace natural stone. In the field of home decoration, high-grade kitchen and bathroom brands, such as Oupai cabinets and other well-known kitchen and bathroom brands, have begun to use artificial stone as home decoration materials. In shopping centres, office buildings, hospitals and other public buildings have been widely used artificial stone. In addition, architectural cylinders, door and window coverings, handrails, indoor and outdoor carved models, handicraft decoration, garden bonsai, etc., began to use artificial stone. Especially in the international market, there is a strong demand for artificial stone.

3. Here are some tips for storing and using unsaturated polyester resin.

(1) Store the resin in a cool, dry place and avoid direct sunlight. High temperature and humidity will deteriorate the resin gradually.

(2) Keep the resin in the original container with a tight lid to prevent contamination.

(3) Ensure the resin is at room temperature before using it. The cold resin may not flow properly and may not cure properly.

(4) Mix the resin using clean containers and utensils according to the manufacturer's instructions.

(5) Use the resin within the recommended expiration date, the time available before the resin starts curing.

(6) Wear protective equipment such as gloves and goggles when using the resin to avoid irritation to the skin and eyes.

(7) Clean up any spilt or excess resin immediately to prevent it from hardening.

Following these guidelines ensures that your unsaturated polyester resin is stored and used properly, resulting in a successful project.

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