> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Conductive Rubber Sheet / Stretch Sensor- 200mm x 200mm x 1mm

**Type:** Product page · **SKU:** ADA5463 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/conductive-rubber-sheet-stretch-sensor-200mm-x-200mm-x-1mm.html ([markdown](https://core-electronics.com.au/conductive-rubber-sheet-stretch-sensor-200mm-x-200mm-x-1mm.html.md))

This rubber sheet is made of the same carbon-black impregnated rubber material that our conductive rubber cord uses. Traditionally it would be used for...

## Pricing

- **Price:** $18.25 (inc GST) — $16.59 AUD, exc GST
- **Quantity discounts:** 10+ $16.09 (exc GST) · 50+ $15.76 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today, and up to 500 more in 8–12 days.

## How to buy

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## Description

This rubber sheet is made of the same carbon-black impregnated rubber material that Adafruit's [conductive rubber cord uses](https://core-electronics.com.au/conductive-rubber-cord-stretch-sensor-extras.html). Traditionally it would be used for EMF shielding, or conductive gaskets - but it's very fun to play with and we think it makes for an interesting stretch sensor or maybe a conductive material that is soft and conforming.

In a 'relaxed' state, [the bulk sheet resistivity](https://en.wikipedia.org/wiki/Sheet_resistance) is about 70 ohm\*meters. As you pull on it, the resistance increases (the particles get further apart). You can stretch the rubber about 50-70% longer than the resting length, so a 6" piece shouldn't be stretched more than 10". Once the force is released, the rubber will shrink back, although its not very 'fast' and it takes a minute or two to revert to its original length. It's not a true linear sensor, and the resistance may vary from batch to batch, so we consider it a way to measure stretching motion but isn't really precise.This stuff is fun, so we give you a 200mm by 200mm square with 1mm thickness. You can easily cut this material with scissors or a die. [You can use it as a conductor or add a 100 ohm resistor as a divider](https://core-electronics.com.au/through-hole-resistors-100-ohm-5-1-4w-pack-of-25.html), then use Adafruit's handy Thermistor tutorial to measure the analog voltage and convert that back to resistance.

## Technical Details

Product Dimensions: 200.0mm x 200.0mm x 1.0mm / 7.9" x 7.9" x 0.0"

Product Weight: 44.0g / 1.6oz

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5463-1.jpg)