Will this work to coat the non-working rubber buttons on a remote control

Yes, this worked great. First, clean the circuit board where the contacts are using Isopropyl alcohol. I also used Iso to clean off the rubber dot, which is usually a conductive carbon substance. Then apply the *carbon* version of this product to the black dot. Cover the whole surface and let it dry completely before re-assembling.

Can this be used to repair a broken strip in a car rear defogger?

I just tested a 1/2" long x1/8" wide strip on a piece of pyrex glass and got 0 resistance for that length. It seems to conduct well for a short distance and stuck to the glass very well. I hope this helps.

Does it work for making a PCB?

In my opinion, it's far from the ideal for making your own PCB. I can see it being used for prototyping of low voltage/low current circuits.This particular compound is based on nickel, which is not a as conductive as copper.This pen would work fine for the small repairs like cuts or tears in the existing PCB traces. BTW, there's a more conductive version of this pen which is based on silver.Aside from conductivity issue, there's an issue of securing parts to PCB. I,also, doubt you can solder to the trace drawn with this pen.

Is this pen good for making a jumper on a circuit board?

Yes, it's great for that but even the carbon conductive (lowest quality) pen would work for that

Mg Chemicals 841ar P Nickel Conductive Pen 7 5g

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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¥8260

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Draw the future—connect with confidence!

ULTRA LOW RESISTIVITY - Ensures lightning-fast, reliable conductivity for your circuits.
PRECISION FLOW CONTROL - Valve tip and squeezable tube let you draw perfect traces every time.
RAPID ROOM TEMP DRYING - Get your projects back in action within minutes—no heat needed.
VERSATILE SURFACE ADHESION - Bonds seamlessly to plastics, metals, ceramics, and 3D printing materials.
DURABLE CORROSION RESISTANT - Long-lasting connections that keep your devices performing like new.

The MG Chemicals 841AR-P Nickel Conductive Pen delivers ultra-low resistivity (0.0040 Ω·cm) conductive traces with a precise 1.0 mm tip. It dries quickly at room temperature, adheres to a wide range of materials including plastics and metals, and is ideal for fast repairs, prototyping, and enhancing circuit connections. Its valve tip and squeezable body provide controlled application, making it a must-have for professionals and makers seeking durable, corrosion-resistant electrical pathways.

Specifications

ASIN	B01LYAA814
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	272,013 in DIY & Tools ( See Top 100 in DIY & Tools ) 762 in Lubricants
Colour	Nickel
Customer Reviews	3.9 3.9 out of 5 stars (355)
Date First Available	16 Nov. 2016
Guaranteed software updates until	unknown
Item Package Quantity	1
Item Weight	25 g
Item model number	841AR-P
Item thickness	25 Micron
Manufacturer	MG Chemicals
Material	Acrylic Resin
Part number	841AR-P
Product Dimensions	2.56 x 19.84 x 5.12 cm; 25 g
Size	5 mL
Style	Nickel

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Excellent communication throughout the order process. Product is perfect.

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¥8260

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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MG Chemicals 841AR-P Nickel Conductive Pen, 7.5g

Description

Specifications

Common Questions