Why choose PUR edge banding: the advantages of PUR edge banding process

PUR is a kind of adjustable rigidity and toughness (elasticity), which has excellent bonding strength, heat resistance, moisture resistance, chemical corrosion resistance, aging resistance, and does not contain toxic and harmful volatile chemicals such as formaldehyde and benzene. environmentally friendly hot melt adhesives.

At present, there are three mainstream edge banding processes: EVA edge banding, PUR edge banding, and laser edge banding. The most traditional EVA edge banding is also the most widely used edge banding process. Its cost is lower than that of PUR, and it has lower requirements on equipment and site. PUR adhesive application equipment and scenes must be cleaned on the same day, and regular comprehensive cleaning is also required. High manpower, cost and technology. However, compared with laser edge banding, PUR edge banding is relatively more cost-effective.

Performance comparison of three edge banding processes

That is to say, the PUR adhesive has good initial bonding strength, which can ensure one-time bonding in place; excellent final bonding strength, the tensile strength is above 150N, which is more than twice that of ordinary EVA adhesive under the same conditions; the glue line Very small (less than 0.1MM, more than 40% smaller than the EVA adhesive process), less pollution, less after-sales problems on the board surface, suitable for high-end customized production needs; good heat resistance, good product stability at 150 ° C; excellent Moisture resistance, super water resistance, not affected by humid air, better moisture resistance and mildew resistance. Long service life, improve work efficiency and save time.

Look at the cost:

When the edge banding uses the same plate (common specifications length*width*height), the approximate cost comparison of the three edge banding processes.

Purking®	EVA hot melt adhesive edge banding	PUR hot melt adhesive edge banding	Laser edge banding
Equipment price (edge banding machine)	180000.00-500000.00$\set	250000.00-700000.00$\set	3000000.00-5000000.00$\set
Adhesive amount	250/m²	150/m²	200/m²coating
Adhesive price	12-30$\KG	50-70$\KG	200$\KG
Side strip (material)	PVC\ABS\Acrylic	PVC\ABS\Acrylic	ABS
Edge banding price	0.5-1.5$\Per meter	0.5-1.5$\Per meter	3-5$\Per meter
Edge banding cost per mete r (adhesive plus edge banding)	0.6-1.6$\Per meter	0.75-1.75$\Per meter	3-5$\Per meter
Equipment cost (repair and demolition of edge banding machine)	3.2-8.5$\Year	4.5-11.9$\Year	55-84$\Year
Approximate cost accounting (summary of the above)	1	3	30

Remarks: If the approximate cost calculation is based on the cost of EVA edge banding at 1$, then the cost of PUR edge banding is 3$, and the cost of laser edge banding is 30$ (including equipment loss).

Disadvantages: short shelf life, high technical requirements, high cost

At present, although PUR has many advantages, there are also shortcomings to be overcome.

1. The requirements for the production environment are relatively high, and a certain temperature and humidity are required to achieve post-curing.

2. The storage requirements of the product are relatively strict and cannot be exposed to moisture, and the shelf life is generally not more than 1 year.

3. Professional equipment needs to be configured, regular maintenance and cleaning of equipment is required, and the cost is high.

4. The product line of PUR edge banding adhesive is single, and product diversification is limited.

 

David. Hsu, managing director of PurKing, said that with the continuous development and upgrading of the woodworking industry and the improvement of the quality of life, the consumer-led home furnishing consumer group pursues appearance, performance, and a more environmentally friendly and healthy lifestyle. The development of the mixture is bound to be unstoppable. At the same time, in recent years, consumers have paid more and more attention to environmental protection technology, which will also promote the continuous upgrading of PUR adhesive technology and boost the development of high-end green home furnishing industry.