Q&A – Question and Answer

14/07/2026

FREQUENTLY ASKED QUESTIONS

1. How should I properly clean leather shoes before applying leather conditioner?

Before applying leather conditioner, clean the surface of the shoes thoroughly to remove dust, dirt, sand, and other residues. Use a soft-bristle brush or a clean cloth to gently wipe the surface. For stubborn stains, use a specialized leather cleaner.

After cleaning, allow the shoes to air dry completely before applying the conditioner. If the leather is still damp, the conditioner will not penetrate properly, reducing its effectiveness.

Cleaning your shoes before conditioning not only helps the leather absorb nutrients more effectively but also prevents dirt from becoming embedded in the surface, keeping the leather soft, polished, and extending the lifespan of your shoes.

2. How often should I apply a waterproof spray to shoes or handbags?

For new products, apply a waterproof spray before the first use to create a protective barrier against water and stains.

During regular use, it is generally recommended to reapply the spray every 3–5 weeks. If the product is frequently exposed to rain, humid environments, or has been thoroughly cleaned, reapply sooner to maintain optimal protection.

Before spraying, shake the can well, hold it approximately 20–30 cm away from the surface, and apply an even coat over the entire product. Allow it to dry naturally according to the manufacturer’s instructions before use.

3. When should I replace an OLFA blade?

You should replace the blade when you notice any of the following signs:

The blade is no longer as sharp as before.
More force is required to make a cut.
The cut edges become rough or uneven.
The blade is chipped, bent, or damaged.

Replacing the blade at the right time ensures cleaner, more accurate cuts, reduces the risk of slipping during use, and helps prevent damage to the material being cut.

After replacing the blade, dispose of the used blade properly to ensure user safety.

4. How should Pantone color guides be stored to maintain color accuracy?

Pantone color guides are standard color reference tools, so proper storage is essential to maintain their accuracy over time.

Store the color guides in a cool, dry place away from direct sunlight, high temperatures, and excessive humidity. Avoid prolonged exposure to strong light, as it may cause the printed colors to fade and affect color matching accuracy.

Additionally, avoid touching the color patches directly to prevent dust, dirt, or oils from your hands from contaminating the surface. After use, store the guides in their protective case or packaging to extend their lifespan and ensure consistent color matching results.

5. How should I choose the right sandpaper?

Sandpaper is available in various grit levels, and each type is suitable for different applications.

Coarse-grit sandpaper is used to remove old adhesive or smooth rough surfaces.
Medium-grit sandpaper helps prepare surfaces for better adhesive bonding.
Fine-grit sandpaper is ideal for finishing and smoothing material surfaces.

Selecting the appropriate grit improves processing efficiency, minimizes material damage, and enhances the overall quality of the finished product.

6. How do I choose the right shoe manufacturing supplies for each production stage?

Each stage of the shoe manufacturing process requires different materials and supplies. Choosing the right products helps improve product quality and maximize production efficiency.

For example, sandpaper is used to prepare surfaces before gluing, adhesives should be selected based on the type of leather or material, and sewing threads, tapes, and other accessories must meet the required durability and compatibility standards.

Before making a selection, identify the material being used, the production process, and the technical requirements of the finished product. If you are unsure, refer to the product specifications or contact our technical support team for assistance.

7. What is a thickness gauge used for in the footwear and leather industry?

A thickness gauge is used to measure the thickness of materials such as genuine leather, synthetic leather, rubber, EVA, PU, fabric, and various other materials used in the footwear industry.

Accurate thickness measurement helps control the quality of incoming materials and ensures that components meet technical specifications before entering production. This minimizes processing errors and improves product consistency.

For accurate results, place the material on a flat surface, follow the operating instructions carefully, and calibrate the instrument regularly.

8. Should shoe-making tools be cleaned after use?

Yes. After each use, clean off any leather dust, adhesive, polish, or other residues from the tools.

For cutting knives, wipe the blade clean and store it safely. For brushes, remove dust and store them in a dry place.

Regular cleaning helps maintain tool performance, extends service life, and ensures consistent quality for future use.

9. What is the purpose of a hardness tester in material quality inspection?

A hardness tester is used to measure the hardness or softness of materials such as rubber, shoe soles, plastics, EVA, PU, and many other materials.

The measurement results help manufacturers determine whether materials meet technical specifications and maintain consistency across production batches, ensuring the quality of the final products.

For reliable measurements, the material surface should be clean and flat, the test should be performed according to the recommended procedure, and the instrument should be calibrated regularly to maintain accuracy.

10. How should shoe care products and tools be stored for long-term use?

Shoe care products and tools should be stored in a clean, dry place away from direct sunlight and high-humidity environments.

After each use:

Close the caps of all liquids and adhesives tightly.
Clean brushes, cutting tools, and other equipment thoroughly.
Store everything neatly in a storage box or cabinet to protect them from dust and impacts.

In addition, regularly inspect your tools, including blade sharpness, sandpaper wear, and brush condition, and replace them when necessary.

Proper storage not only extends the lifespan of your products and tools but also maintains their performance and reduces replacement costs over time.

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