This picture shows a perfect square but the dimensions are 100mm x 70 mm [ For 'murica boys thats... 4 x 2 3/4 inches ] approx

the PC material was 100mm x 70mm as stated. As I recall, they offered several different sizes and I suppose the photo was of PC board of the type they sold.

what type of substrate was used in the production of these boards?

The description now indicates that these are FR-4 boards.

Is this what i need to replace pad where i used braided copper to remove solder and it removed all of it?

This item is a blank circuit board - it's solid copper on one side and nothing on the other. It wouldn't be a suitable replacement for one pad on a circuit board, but it could be used to make a new one.

Has anyone used this to create etchings for intaglio printing?

SORRY CAN'T ANSWER THAT..... I ONLY USE COPPER CLAD BOARDS TO MACHINE THE TRACES AND COMPONET HOLE SIZES ON MY CNC MILL FOR THE PROJECTS I DESIGN ON MY CAD SYSTEM........ THIS METHOD WORKS GREAT FOR ME IN THE EVENT I NEED TO CHANGE SOMETHING......

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⚡️ Power your prototypes with precision and durability!

DURABLE SAFE - FR4 fiberglass backing ensures flame resistance and long-lasting durability
BULK PACK ADVANTAGE - 10 high-quality boards per pack to fuel multiple projects or rapid iteration
PRECISION DIY READY - Single-sided copper surface perfect for custom etching projects
COMPACT CONVENIENT - Ideal 4 x 2.7 inch size fits any prototyping workspace
RUST PROOF PACKAGING - Moisture-sealed bags keep copper pristine and ready to use

The MCIGICMFR-4 is a pack of 10 single-sided copper clad PCB laminate boards, each measuring 4 x 2.7 inches with a 1.6mm thick FR4 fiberglass base. Designed for etching and DIY electronics projects, these flame-resistant boards come moisture-sealed to prevent copper oxidation, making them an essential, reliable choice for millennial makers and professional prototypers alike.

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阿里·H.

发货快，包装精良。Leatherman 工具手感非常高档和坚固。

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产品质量出色。正是我的工作所需要的。

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Product Dimensions	10 x 1 x 12 cm; 210 g
Manufacturer recommended age	18 months and up
Item model number	43188-169417
Batteries Required?	No
Batteries Included?	No
Material Type(s)	Copper,Glass
ASIN	B01MCVLDDZ

MCIGICM FR-4 Copper Clad PCB Laminate Circuit Board, Single Side, 4 x 2.7 inch (10Pcs)

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