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Applications
The Pencil Hardness Tester is applicable to determine the hardness of coating film.
It is suitable for labs and building sites.
It also can examine the hardness of coating film on any direction.
Structure and working principle
The instrument is mechanical. Three point (Two wheels, and a lead core)
contact the tested surface
always to ensure the pencil and the tested surface
forms the angle of 45 degrees,
so as to push the movement of the instrument, to complete the testing process.
Speed: 1mm/second.
Standard Accessories
①.13pcs* pencils： 6B、5B、4B、3B、2B、B、HB、H、2H、3H、4H、5H、6H
②.1* Pencil hardness meter (500g)
③. 1* Cushion block
④. 1* Knife
⑤. 1* Small Magnifier
⑥. 1* Eraser
⑦. 1* Small brush
⑧. 1* User manual
Use Instructions
①.Preparation: Cutting the pencil with the knife to expose the column
lead core 5-6mm
(kind attention: must not be loosened or cut the lead core),
and holding the lead core
and“No.:400” sand paper to make a 90 angle, and
keeping circle on the sand paper, to grind the end face of the lead core,
until the end face is smooth and the edge is sharp
(The edge shall not be broken
or notched). The pencil should be rotated 180°or regrind
before using next time.
②.Operation: Place the instrument on the flat bench, and place the cushion
block under the instrument,
insert the pencil into the hole on the main
body of the instrument, and make the pencil edge
to contact the main body,
and then tighten the screws(As the picture shown)
③.Place the instrument on the tested surface, and scratch with force
(this force
or broking the
lead core edge or scratching the film,and forward it with the
speed of 1mm/second.
From the hardest pencil (6H),
scratch each level of pencil with five 3mm long mark,
until find out
the one which cannot hurt the film, THAT pencil hardness represents
the tested film hardness.
Product Display
Item Included
Portable Pencil Hardness Tester(220112)
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Item Number |
Description |
QTY |
Unit |
Note |
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220112 |
Portable Pencil Hardness Tester |
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