# Conductive Rubber Sheet / Stretch Sensor- 200mm x 200mm x 0.5mm

**Type:** Product page · **SKU:** ADA5464 · **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-05mm.html ([markdown](https://core-electronics.com.au/conductive-rubber-sheet-stretch-sensor-200mm-x-200mm-x-05mm.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:** $12.85 (inc GST) — $11.68 AUD, exc GST
- **Quantity discounts:** 10+ $11.33 (exc GST) · 50+ $11.10 (exc GST)

## Availability & dispatch

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

## 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 50 ohm\*mm. 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 it's 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 they consider it a way to measure stretching motion but isn't really precise.This stuff is fun, so they give you a 200mm by 200mm square with 0.5mm 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 0.5mm / 7.9" x 7.9" x 0.0"

Product Weight: 22.6g / 0.8oz

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5464-1.jpg)