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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MCIGICM 10 Pcs FR-4 Copper Clad PCB Laminate Circuit Board, Single Side | 4 x 2.7 Inch Pcb Board for DIY Prototyping PCB Board, Name Board

Product ID: 36608630

Details

Brand
MCIGICM
Material
Glass Copper
Number Of Circuits
1
Phase Type
Single Phase
Product Dimensions
4"L x 2.7"W x

📏Compact 4 x 2.7 inch size

🛠️1.6mm thick FR-4 flame resistant

🛡️Moisture-sealed anti-rust packaging

₨6690

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡️ Elevate your prototyping game with precision copper clad boards that mean business!

RUST FREE GUARANTEE - Each board arrives sealed in moisture-proof packaging, preserving pristine copper for immediate use.
COMPACT VERSATILE SIZE - At just 4 x 2.7 inches, these boards fit perfectly into any DIY or IoT project without bulk or waste.
SINGLE SIDED COPPER CLAD - Optimized for etching projects, providing a clean, reliable copper surface for flawless circuit design.
PACK OF 10 FOR MAXIMUM CREATIVITY - Get 10 high-quality boards in one moisture-protected pack—never run out mid-project again.
PRECISION ENGINEERED FR 4 LAMINATE - Durable, flame-resistant fiberglass backing ensures your prototypes stand the test of time and safety standards.

The MCIGICM FR-4 Copper Clad PCB Laminate is a pack of 10 single-sided, 4 x 2.7 inch circuit boards featuring 1.6mm thick flame-resistant fiberglass backing and a pristine copper surface. Designed for etching and DIY electronics projects, each board is sealed in moisture-proof packaging to prevent rust, making it an essential, reliable choice for professional-grade prototyping and IoT development.

Specifications

ASIN	B01MCVLDDZ
Best Sellers Rank	#20,947 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #36 in Prototyping Boards & Accessories
Date First Available	July 17, 2017
Item Weight	7.4 ounces
Item model number	43188-169417
Manufacturer	McIgIcM
Product Dimensions	3.94 x 0.39 x 4.72 inches

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