---
product_id: 6398907
title: "CircuitWriter Conductive Ink, silver-based, 4g"
brand: "caig laboratories"
price: "766 kr"
currency: NOK
in_stock: true
reviews_count: 13
url: https://www.desertcart.no/products/6398907-circuitwriter-conductive-ink-silver-based-4g
store_origin: NO
region: Norway
---

# Fast drying & durable Instant conductive traces Repairs delicate circuit paths CircuitWriter Conductive Ink, silver-based, 4g

**Brand:** caig laboratories
**Price:** 766 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Fix circuits like a pro—no soldering, no stress, just silver precision!

## Quick Answers

- **What is this?** CircuitWriter Conductive Ink, silver-based, 4g by caig laboratories
- **How much does it cost?** 766 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/6398907-circuitwriter-conductive-ink-silver-based-4g)

## Best For

- caig laboratories enthusiasts

## Why This Product

- Trusted caig laboratories brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Solder-Free Circuit Repair:** Perfect for delicate electronics where traditional soldering risks damage—restore broken traces instantly and safely.
- • **Precision Silver Conductivity:** Draw ultra-fine, highly conductive traces with a silver-rich formula that rivals soldering without the heat.
- • **Versatile Surface Compatibility:** Applies smoothly on plastics, membranes, and flexible circuits—ideal for keyboards, phones, and more.
- • **Rapid Drying with Optional Heat Boost:** Dries in as little as 20 minutes under a desk lamp, minimizing downtime and maximizing productivity.
- • **Reusable Pen Design with Generous Ink Supply:** Large 4g capacity and fine tip ensure you’re equipped for multiple repairs without constant reordering.

## Overview

CircuitWriter Conductive Ink is a silver-based, 4g pen designed for instant, solder-free repair of delicate circuit traces on a variety of surfaces. Its fine applicator delivers a dense, highly conductive silver compound that dries quickly and withstands everyday use, making it the go-to tool for professionals and hobbyists tackling electronics repairs where traditional soldering is impractical or risky.

## Description

CircuitWriter Conductive Ink, silver-based, 4g

Review: Good for repairing keyboard membrane - I used this to fix a broken trace on a membrane for a keyboard on a Gateway 2000 handbook. At first it seemed like it didn't work but here's some things you should know that should be on the directions but aren't: 1) There will be no conductivity until it is fully dry. 2) (in my case) it took hours to dry not "10 minutes" as the directions indicate. I let it dry over night and half way through the next day. 3) When applying you have to *BOTH* press in on the tip AND squeeze the shaft of the pen. The directions say to squeeze the pen and if you do it hard enough some will come out but really you also have to push in on the tip. The tip is essentially a valve which only opens up when you press in. It's also pretty easy to clean up if you make mistakes. In my case I accidentally bridged two traces that run parallel but aren't supposed to be connected. A tiny bit of isopro. alcohol and gentle scraping with a small Flathead screwdriver and the excess paint came right off.
Review: Good for when soldering isn't possible - First, let me recommend buying from Micro Tools. I ordered this Friday and Monday, I've got my order, rapid shipping and it arrived with a cool sample of Hand e Glove that I'll try next time I pop the hood of my car. Also, the product looked as if I'd picked it up at the store, complete with packaging. Now to my review thus far and why I'm rating this before the trace dries. Recently, an Evo 3D I bought as a hobby phone from a friend has been down for months because the lcd back light failed when I touched the screen while it was plugged into a rapid car charger. I cracked open the phone with my trusty torx screwdriver, and noticed what appears to be a burn spot on the circuits trace for the lcd to mother board. My options were as follows, buy a new lcd and muck with melting the working digitizer off and hoping that, when glued together, the new lcd fits with the digitizer (the front screen that allows your touch to make stuff happen), otherwise I'd have to muck with it all some more and melt/reapply the assembly. Orrrrr, I could first try that which I'm doing right now. It appears that a portion of the flex cable has an arc burn on it, the fact that the lcd is showing things but not lighting up indicates to me that the lcd is functional, given that the portion of the flex cable that's burnt marred a few traces, seemingly, in the middle of the cable, the way I figure it, one just has to get connectivity again. However, conventional soldering is not possible for a few reasons. 1. The heat involved and the size of the gun. This is a thin plastic circuit that's delicate, saying it was possible to get the gun optimally positioned, it'd still run the risk of doing further damage on both the solder side and also the guns side. 2. The precision required. No matter how fine the tip of the gun, or how fine the solder, the equipment is far too bulky to draw a mm thick line. So, those being the main concerns, I did research, given that I'm fond of silver solder due to its conductivity values, I wanted something that allows me to take full advantage of its marvelous properties. While surfing the www's I saw what I felt was a good heatless solution, silver filled pens. I searched high and low but only found solutions good for heat syncing but not concentrated enough for circuit tracing, that's where Circuit Writer comes in, it has a high ratio of silver particles: solution, and according to the more knowledgeable reviews is just what the doctor ordered as a perfect substitute for the wonderful benefits of heated soldering. Initially, I was pensive about ordering it because of the price and also the idea that the applicator might be clumsy (I was thinking of the ball applicator of silver paint pens used for decorating, also, seeing some of these reviews that thought was reinforce) just got the pen today and was surprised that, indeed, the tip is very fine, and the pen is a lot bigger than I'd anticipated in a good way (lots of solution). I just applied the compound and, per directions, am letting it cure for 24 hours. I'm crossing my fingers that this resolves the issue, if it doesn't, at least I've got a useful tool for the future. I'd recommend this to anyone in a heartbeat for situations involving tight spaces and where soldering just isn't feasible. What I'd NOT recommend buying this for is soldering joints or components, definitely seems to be more for writing circuits, and not for strength and conductivity. I'll edit this part if I try it and it's acceptable, but would not want someone to purchase it thinking they'll get the same strength benefits as solid core silver, or good old rosin core lead as it is a compound and not a solid state.

## Features

- Applies instant traces on most surfaces
- Repairs defective traces
- Durable and convenient
- CAIG LABORATORIES CW100P Circular Conductive Ink Pen

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00B88B9KI |
| Additional Features | Conductive Ink |
| Age Range Description | Adult |
| Best Sellers Rank | #530,479 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #52 in Stencil Ink |
| Body Shape | Round |
| Brand | CAIG LABORATORIES |
| Brand Name | CAIG LABORATORIES |
| Closure Type | Snap |
| Color | Silver |
| Customer Reviews | 3.9 out of 5 stars 541 Reviews |
| Global Trade Identification Number | 00351801332389, 00697429014000 |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Included Components | Conductive ink pen |
| Ink Color | Silver |
| Is Waterproof | False |
| Item Dimensions | 0.62 x 3.5 x 6.5 inches |
| Item Dimensions D x W x H | 0.62"D x 3.5"W x 6.5"H |
| Item Type Name | Conductive Ink Pen |
| Item Weight | 0.27 g |
| Line Size | 0_5mm |
| Manufacturer | CAIG LABORATORIES |
| Manufacturer Part Number | CW100P |
| Marker Type | Fabric Marker, Permanent Marker |
| Material Type | Metal, Plastic |
| Model Name | CW100P |
| Model Number | CW100P |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Pattern | Solid |
| Point Type | Fine |
| Recommended Uses For Product | Drawing, Writing |
| Style | Simple |
| Surface Recommendation | Plastic, Paper |
| Target Audience | Adult |
| Theme | electronics |
| UPC | 793187746242 351801332389 697429014000 |
| Unit Count | 1 Count |
| Warranty Description | As labelled |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | Conductive Ink Application |

## Product Details

- **Brand:** CAIG LABORATORIES
- **Ink Color:** Silver
- **Number of Items:** 1
- **Point Type:** Fine
- **Recommended Uses For Product:** Drawing, Writing

## Images

![CircuitWriter Conductive Ink, silver-based, 4g - Image 1](https://m.media-amazon.com/images/I/41sb93+OJEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good for repairing keyboard membrane
*by T***S on July 8, 2021*

I used this to fix a broken trace on a membrane for a keyboard on a Gateway 2000 handbook. At first it seemed like it didn't work but here's some things you should know that should be on the directions but aren't: 1) There will be no conductivity until it is fully dry. 2) (in my case) it took hours to dry not "10 minutes" as the directions indicate. I let it dry over night and half way through the next day. 3) When applying you have to *BOTH* press in on the tip AND squeeze the shaft of the pen. The directions say to squeeze the pen and if you do it hard enough some will come out but really you also have to push in on the tip. The tip is essentially a valve which only opens up when you press in. It's also pretty easy to clean up if you make mistakes. In my case I accidentally bridged two traces that run parallel but aren't supposed to be connected. A tiny bit of isopro. alcohol and gentle scraping with a small Flathead screwdriver and the excess paint came right off.

### ⭐⭐⭐⭐⭐ Good for when soldering isn't possible
*by A***R on November 5, 2012*

First, let me recommend buying from Micro Tools. I ordered this Friday and Monday, I've got my order, rapid shipping and it arrived with a cool sample of Hand e Glove that I'll try next time I pop the hood of my car. Also, the product looked as if I'd picked it up at the store, complete with packaging. Now to my review thus far and why I'm rating this before the trace dries. Recently, an Evo 3D I bought as a hobby phone from a friend has been down for months because the lcd back light failed when I touched the screen while it was plugged into a rapid car charger. I cracked open the phone with my trusty torx screwdriver, and noticed what appears to be a burn spot on the circuits trace for the lcd to mother board. My options were as follows, buy a new lcd and muck with melting the working digitizer off and hoping that, when glued together, the new lcd fits with the digitizer (the front screen that allows your touch to make stuff happen), otherwise I'd have to muck with it all some more and melt/reapply the assembly. Orrrrr, I could first try that which I'm doing right now. It appears that a portion of the flex cable has an arc burn on it, the fact that the lcd is showing things but not lighting up indicates to me that the lcd is functional, given that the portion of the flex cable that's burnt marred a few traces, seemingly, in the middle of the cable, the way I figure it, one just has to get connectivity again. However, conventional soldering is not possible for a few reasons. 1. The heat involved and the size of the gun. This is a thin plastic circuit that's delicate, saying it was possible to get the gun optimally positioned, it'd still run the risk of doing further damage on both the solder side and also the guns side. 2. The precision required. No matter how fine the tip of the gun, or how fine the solder, the equipment is far too bulky to draw a mm thick line. So, those being the main concerns, I did research, given that I'm fond of silver solder due to its conductivity values, I wanted something that allows me to take full advantage of its marvelous properties. While surfing the www's I saw what I felt was a good heatless solution, silver filled pens. I searched high and low but only found solutions good for heat syncing but not concentrated enough for circuit tracing, that's where Circuit Writer comes in, it has a high ratio of silver particles: solution, and according to the more knowledgeable reviews is just what the doctor ordered as a perfect substitute for the wonderful benefits of heated soldering. Initially, I was pensive about ordering it because of the price and also the idea that the applicator might be clumsy (I was thinking of the ball applicator of silver paint pens used for decorating, also, seeing some of these reviews that thought was reinforce) just got the pen today and was surprised that, indeed, the tip is very fine, and the pen is a lot bigger than I'd anticipated in a good way (lots of solution). I just applied the compound and, per directions, am letting it cure for 24 hours. I'm crossing my fingers that this resolves the issue, if it doesn't, at least I've got a useful tool for the future. I'd recommend this to anyone in a heartbeat for situations involving tight spaces and where soldering just isn't feasible. What I'd NOT recommend buying this for is soldering joints or components, definitely seems to be more for writing circuits, and not for strength and conductivity. I'll edit this part if I try it and it's acceptable, but would not want someone to purchase it thinking they'll get the same strength benefits as solid core silver, or good old rosin core lead as it is a compound and not a solid state.

### ⭐ 3 words...Does Not Work
*by B***I on August 31, 2010*

You might as well use a piece of a plastic bag to connect points. Tried every way I could to get it to be conductive. drawing a line on a circuit board and letting it dry, drawing a line and baking it as directed to "cure it" I even tried to see if it was conductive little copper circle to little copper circle on a board with the copper on it. It may work for itty-bitty breaks on a drefroster on your back window, but as for it being some way of conducting from point A to B forget it. I cannot believe I wasted my money, could have bought 3 spools of 22 gauge wire for less @ Radio Shack for the price of basically nothing. Just a bag of "magic beans" when it comes to living up to description.

## Frequently Bought Together

- CircuitWriter Conductive Ink, silver-based, 4g
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- Itw Chemtronics CW3300G Conformal Overcoat, Pen, 0.16 oz.

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-13*