The secret to formaldehyde-free boards – MDI eco-friendly adhesive

2025-11-04

With the continuous upgrading of environmental protection concepts, discussions about formaldehyde-free and environmentally friendly products are becoming increasingly intense in the home furnishing and building materials industry. How to achieve formaldehyde-free home furnishings? How to ensure an environmentally friendly and healthy home environment has become a question that many home furnishing companies are constantly exploring.

In recent years, the formaldehyde-free OSB boards launched by Luli Home Furnishings have been increasingly favored by consumers. Relying on the formaldehyde-free manufacturing process, formaldehyde emission levels far below the national standard, and high-quality boards, they have stood out and become a dark horse in the home building materials industry.

Formaldehyde-free OSB boards

The most important reason why OSB boards are so environmentally friendly is the use of MDI eco-friendly adhesive.

MDI eco-friendly adhesive

MDI is a general term for diphenylmethane diisocyanate, mixtures containing a certain proportion of pure MDI and polyphenylmethylene polyisocyanate, and modified products of pure MDI and polymeric MDI. MDI adhesive, also known as MDI eco-adhesive, is chemically called isocyanate, and its various properties play an important role in the board manufacturing process.

Excellent stability and security

MDI can be used to make artificial blood vessels, heart valves, refrigerator liners, etc., and is very safe for the human body. When MDI eco-adhesive is used as an adhesive for boards, it reacts into a polyurea polymer. This polymer structure has no volatility, so MDI does not contain any formaldehyde.

Using MDI eco-friendly adhesives to manufacture boards can achieve zero formaldehyde addition, making it a truly healthy and environmentally friendly base material. It is more suitable for the customization of indoor furniture products and can bring consumers a healthier and more environmentally friendly home environment.

Far below national standards

Extremely strong polarity and reactivity

MDI eco-friendly adhesives have inherent polarity and reactivity, allowing them to react with wood. Therefore, boards made with MDI eco-friendly adhesives have higher bonding strength, require less adhesive dosage, and need shorter hot-pressing time.

This characteristic gives OSB boards stronger physical properties during use, with higher strength and hardness, and they are less prone to cracking and deformation.

Insoluble in water

MDI eco-friendly adhesive is insoluble in water, which makes OSB boards exceptionally waterproof and moisture-proof, as well as highly corrosion-resistant. Even when used in humid environments, they can maintain good performance and quality.


The use of MDI eco-friendly adhesives in customization provides favorable conditions for achieving formaldehyde-free home furnishings. By seizing this characteristic and conducting careful research, we have developed a formaldehyde-free OSB board with higher performance and more environmentally friendly features, opening up a new chapter for the home building materials industry to transform towards green home furnishings.

In future development, we will continue to explore the path of formaldehyde-free home furnishings, bringing you products with the greatest market development potential and industrialization prospects.