# Thermal Gap Filler

**Type:** Product page · **SKU:** TOL-14283 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/thermal-gap-filler.html ([markdown](https://core-electronics.com.au/thermal-gap-filler.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

This Thermal Gap Filler provides 1.1W/mK of thermal conductivity that can conform to most surfaces. It’s perfect for high-value products that you need to keep cool, as it is a poor conductor of electricity while remaining a great conductor of heat! No additional adhesive is required when applying the Thermal Gap Filler, as it is naturally tacky and sticks to whatever you need it to — just be sure that’s where you need it!

This gap filler is what we use on our Stepoko motion controller as well as what we recommend to use with our [ESP32 Thing Power Control Shield](https://core-electronics.com.au/search/?q=14155), as it is both electrically insulating and stable from -40°C to 160°C while meeting a [UL 94 VO rating](https://en.wikipedia.org/wiki/UL_94).

**Features:**

- Soft and compressible for low-stress applications
- Naturally tacky, needing no further adhesive coating
- 1.1 W/mK thermal conductivity
- Comes in 9"x9" sheets
 
**Documents:**

- [Datasheet](https://cdn.sparkfun.com/datasheets/Tools/THR-DS-Tflex%20200%20V0%200710.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/4/14283-01.jpg)