PUSHEN Pencil Hardness Tester BY Pencil hardness test Wolff-Wilborn coating hardness evaluation

Name: PUSHEN Pencil Hardness Tester BY Pencil hardness test Wolff-Wilborn coating hardness evaluation
Brand: Pushen
SKU: NB005877

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The cylindrical pencil lead is used to maintain a 45 ° angle and fixed pressure, and the coating grade is determined by the minimum scratch hardness value. The load can be 500g, 750g or 1000g, which meets many international standards.

Model

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Category : Pencil Hardness Tester

Brand : Pushen

SKU : NB005877

Service :The delivery and service By NBCLab.Com

Overview

The PUSHEN Pencil hardness tester is used to perform pencil hardness experiments (also known as "Wolff-Wilborn" experiments), by using graphite pencils with different hardness values to evaluate coating hardness. Its precision design ensures that the cylindrical pencil lead always maintains a 45 ° angle and a fixed pressure. The hardness grade of the coating is determined by the minimum hardness value pencil that can leave a mark on the coating.

Features

1. Precision design ensures that the pencil lead maintains a constant 45 ° angle and fixed pressure. 2. The coating hardness grade can be determined through experiments.

Principle

Pencil hardness tester by different hardness values of graphite pencils at a fixed angle of 45 ° and pressure across the surface of the coating, according to the minimum hardness value can leave marks on the coating pencil to determine the hardness grade of the coating.

Applications

Coating hardness assessment

Standards

GB/T 6739、ISO 15184、ASTM D 3363

Steps

1. Load the pencil into the hardness gauge. 2. Place the hardness gauge on the surface of the coating to be tested at an angle of 45 °. 3. Apply a fixed pressure to push the hardness gauge so that the pencil is scratched on the coating. 4. Check whether the coating surface leaves traces. 5. Replace pencils of different hardness and test the repeability until the smallest hardness value pencil that can leave traces is found. 6. Determine the coating hardness grade according to the pencil hardness value.

Notice

Please read the instruction manual carefully before use. • Make sure the pencil lead is sharp and meets specifications. • Keep the hardness gauge and coating surface angle constant during testing. • The pressure applied must meet the instrument setting value (e.g. 500g, 750g or 1000g). • The test surface should be flat and clean. • Choose the appropriate pencil hardness range according to different test criteria. • Keep equilibrate cushions and other accessories properly.

load
500g
applicable standard
GB/T 6739；ISO 15184；ASTM D 3363
Standard pencil
6B-HB-6B, 13 pcs

[Q] Is the price listed on the website the final cost for overseas purchases?

[A] No, it isn't. This is the ex-factory price of the product in the Chinese Mainland. In addition to this price, buyers from different countries need to account for additional costs such as shipping fees, tariffs, and others. For specific regional quotes, please consult our customer service or fill out a quotation form.

[Q] What is the specific process for purchasing the product?

[A] First, please click on the quotation form on the website and fill in detailed information. Our customer service personnel will then send you a quotation based on your specific country and region, confirming payment and delivery methods. Following this, we proceed with contract signing, payment, and shipment. You can then await delivery.

[Q] What should I do if the instrument I purchase needs repair?

[A] After-sales repair for overseas instruments is an unavoidable issue. Our repair terms stipulate that the sender is responsible for the shipping and insurance costs incurred for the repair. Repairs within the warranty period are free, while repair costs beyond the warranty period are determined based on the actual situation.

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