Tannin Wood – Solutions to Overcome and Minimize Oil Spillage on Wood

Wood tannin leakage is a challenging issue that wood manufacturers and architects often encounter. This not only affects the aesthetics but also reduces the commercial value of wooden products. To help you understand better and find effective solutions, this article will provide a detailed analysis of tannin and methods to address oil spillage on wood.

Tannin gỗ là gì và biện pháp khắc phục

What Is Tannin Wood ?

Tannin is a natural compound that has a brown color. It is commonly found in woods such as Oak, Cedar, Redwood, and Chestnut. Tannin not only helps protect the tree from bacteria and pests but also plays an important role in providing color and durability to the wood. In its natural state, tannin is hidden beneath the wood’s surface. Tannin is often used in the tea and wine industries. When wood is exposed to air and chemicals, tannin oxidize and seeps to the surface, causing the phenomenon known as ‘Tannin Bleed’.

Phenomenon of Tannin Bleed

Tannin Bleed is the oxidation process that causes tannin to seep to the surface of the wood, creating unwanted yellow stains. This phenomenon is particularly troublesome when it appears on newly painted interior and exterior wood products. The yellow stains not only reduce the aesthetic appeal but also affect the commercial value of the product.

tannin bleed trên gỗ

Tannin Effect Wood Industry:

1. Reduced Aesthetic Value:

Yellow stains on the wood surface detract from its natural beauty, diminishing the commercial value of the wood product. Imagine you have just finished painting a pristine white kitchen cabinet. A few hours later, yellow stains appear on the surface. This is a typical example.

2. Increased Production Costs:

To address tannin bleed, manufacturers must employ additional surface treatment measures, which increases production costs. Moreover, there are also additional expenses involved.

3. Challenges in Construction:

This phenomenon increases the time and effort required to complete the product, complicating the construction process. Each occurrence of yellow staining necessitates reworking and treating the wood again. This prolongs the timeline and reduces efficiency.

If you are facing this issue, don’t worry. Biochem introduces several effective solutions to tackle tannin bleed, helping you protect and enhance the value of your wood products.
Tràn tannin trên gỗ vừa sơn
Tràn tannin trên gỗ vừa sơn

Solution Of Tannin Bleeds 

1.Surface Treatment:

Before painting, the wood surface should be thoroughly cleaned with specialized solutions. Solutions like Acetone, Isopropanol, and Xylene are effective. Sanding the wood in combination with these solutions helps remove stains and prepares the surface better for the next coat of paint. This process not only cleans the wood surface but also increases the paint’s adhesion, thereby reducing the risk of tannin bleed after painting.

2. Moisture Control:

Keeping the wood’s moisture content low (8-12%) helps prevent oil seepage from the inside out. Using dehumidifiers or kilns are effective measures to control the wood’s moisture content, thus maintaining the quality and durability of the product. Low moisture levels help prevent the oxidation of tannin, minimizing the occurrence of oil seepage on the wood surface.

3. Using Low-Tannin Wood:

Wood types like Maple, Ash, Red Pine, and Birch have low tannin content and are less prone to yellow staining. Maple and Ash are particularly favored for their light color and minimal staining. They are suitable for various interior and exterior applications. Using low-tannin wood not only reduces the risk of oil seepage but also helps the product retain its natural beauty for a longer time.

Xử lý gỗ bị tràn tannin
Solving tannin bleed on the wood

Tannin Block – BIOCHEM Water-Based Wood Paint

Using Tannin Block is the optimal solution for the issue of tannin bleed. Tannin Block is a wood surface sealer that prevents oil seepage. This product is typically based on Acrylic, Polyurethane, or Epoxy components. Biochem proudly introduces effective anti-yellowing primers such as W7015ATM, W7035ATM, and W7433ATM. These products are not only easy to apply and low-odor but also safe for health, ensuring the highest customer satisfaction.

Advantages of BIOCHEM Water-Based Wood Paint

– Easy Application: Biochem water-based wood paint is easy to use, saving time and effort during the application process.
– Health Safety: The product does not contain harmful chemicals, making it safe for users and environmentally friendly.
– Economic Efficiency: Using water-based wood paint helps reduce maintenance costs and extends the lifespan of wood products.
Biện pháp chống tràn tannin hiệu quả - sơn gỗ gốc nước Biochem
Effective solution for tannin-proof – Water-Based Wood Coatings Biochem

Consumption

Tannin bleed is a significant issue in the wood manufacturing and construction industries that cannot be underestimated. By implementing surface treatment solutions, moisture control measures, and using Biochem water-based wood paint, you can ensure the highest quality and aesthetic appeal for your products.

Biochem – For A Green Future

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Tel: (+84-28) 3620 4207 | 3620 4208

Fax: (+84-28) 3620 4206

Website Biochem:www.biochem.vn

Website Biomass:www.biomasscoating.com

Email: contacts@biomasscoating.com

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