Hot Melt Adhesive is now the most environmentally friendly, and suitable for high-speed automated assembly line operation of a class of adhesive. Today's rapid development of the automotive industry, especially in China, with the automotive production of automatic level of improvement, the automotive industry needs a large number of fast bonding, but also to adapt to high-speed automated production and environmental protection adhesive, hot melt adhesive just to meet all of the above requirements, so the hot melt adhesive is more and more widely used in the automotive industry, the use of the amount of increase year by year, the automotive industry has become irreplaceable type of adhesive. The reason why there is such a trend, is by the characteristics of the hot melt adhesive itself decided to go.

Hot melt adhesive characteristics:

1, fast curing speed, suitable for modern high-speed assembly line operation.

2, bonding materials, automobiles are mainly composed of a large number of metal and non-metallic parts, hot melt adhesive is suitable for such products bonding. Such as automobiles used in a large number of ABS, PP, PE, felt and so on.

3、Construction convenience, hot melt adhesive can have a variety of ways of gluing, you can spray, roll coating, scraping and so on.

4, hot melt adhesive is 100% solid content, easy to store, and energy saving, environmental protection, non-toxic, will not produce secondary pollution of the environment.

5, today's world resource constraints, many automobile companies in the production of automobiles have been considered in the car after the end of the resource recycling, hot melt adhesive has the characteristics of heating that is melted, in the car recycling and dismantling more advantageous.

Types of hot melt adhesives for automobiles:

Most of the hot melt adhesives have examples of use in automobiles, just different parts and uses will choose different types of hot melt adhesives. According to its function can be divided into bonding type and sealing type two categories, sealing type mainly use butyl type of adhesive, will not be discussed here. According to the use and construction temperature, it can be divided into general and heat-resistant type, the car is mainly driven in the outdoor, generally require hot melt adhesive has a certain heat-resistant properties. If classified by material, there are EVA, rubber, APAO, and PUR, PA, PES, etc., the shape of the block, film, rod, granule and powder.

Hot melt adhesives are used in automobiles:

A car consists of thousands of parts and components, involving the use of hot melt adhesive parts are also many, here mainly cite some of the use of a relatively large and common parts: 

1, headlights, the traditional method is to use rubber sealing strip with holes, through the screw pressure sealing, change to hot melt adhesive, can be quickly bonded at the same time play a role in sealing, not only reduce the cost and is conducive to automated production. The type of hot melt adhesive mainly rubber type and APAO type and PUR type, the requirements of good temperature resistance, high strength of adhesive glass, vibration resistance. Currently there is also a two-component adhesive. Licence plate light is also useful for temperature-resistant hot melt adhesive stick fixed harness and electronic components.

2, the driver's side of the instrument panel, ventilation ducts, interior fixed buckle, etc., in the past are mechanical methods of fixed connections, not only time-consuming and labour-intensive, but also inefficient, sealing performance is not good. The use of hot melt adhesive, greatly improving production efficiency and product quality. The main use of temperature-resistant hot melt adhesive stick, the substrate has EVA and polyolefin type.

3, car roof, car roof is a composite between the plastic sheet, hot melt adhesive type is mainly film and powder, base material is PE and EVA.

4, car door panel, car door panel assembly need to use hot melt adhesive bonding. There are PP parts bonding, audio and wire harness fixing. Mainly use APAO and temperature-resistant glue stick.

5, car carpet and floor insulation mats, luggage compartment buckle, etc., which is the car using the most hot melt adhesive place. Types of hot melt adhesive are adhesive block, adhesive particles and glue sticks. Types of pressure-sensitive adhesive, EVA adhesive granules, glue sticks and APAO. requires a long open time, easy to assemble and fit large pieces, good heat resistance, less odour.

6, automotive wiring harness fixed, the car has a large number of internal wires, so many wiring harnesses can not be fixed with a wire tube like our home improvement, fixed with hot melt adhesive is a time-saving and efficient method, and hot melt adhesive has a certain degree of elasticity, will not drive bumps in the fall, the need for maintenance is easy to dismantle. We mainly use glue sticks and APAO type hot melt adhesive.