Datasheet
DOW CORNING® 340
Heat sink compound
Product Information
TYPICAL PROPERTIES
Specification writers: These values are not intended for use in preparing specifications.
Please contact your local Dow Corning sales representative prior to writing specifications
on this product.
CTM* Property
Non-curing silicone compound
ASTM* Unit Value
APPLICATIONS
• Designed to provide a long term thermal bridge between power components
and heat sinks.
• Typical applications include: thermally connecting transistors and thyristors to
heat sinks.
As supplied
Colour White0176
Consistency - penetration, worked (60)
and measured within 1 minute after
working
260mm/100191 D217
Bleed, 24 hours at 200°C Nil%0033
Evaporation, 24 hours at 200°C 0.35%0033
Specific gravity 2.20097 D1475
Thermal conductivity 0.55W/m.K0069
* CTM: Corporate Test Method, copies of CTMs are available on request.
ASTM: American Society for Testing and Materials.
FEATURES
High thermal conductivity•
Low bleed•
Non-sag•
HANDLING PRECAUTIONS
PRODUCT SAFETY
INFORMATION REQUIRED FOR
SAFE USE IS NOT INCLUDED.
BEFORE HANDLING, READ
PRODUCT AND SAFETY DATA
SHEETS AND CONTAINER
LABELS FOR SAFE USE,
PHYSICAL AND HEALTH
HAZARD INFORMATION. THE
SAFETY DATA SHEET IS
AVAILABLE FROM YOUR LOCAL
DOW CORNING SALES
REPRESENTATIVE.
USABLE LIFE AND
STORAGE
When stored at or below 38°C in the
original unopened containers, this
product has a usable life of 60 months
from the date of production.
PACKAGING
This product is available in standard
industrial container sizes. For details
please refer to your Dow Corning
sales office.
LIMITATIONS
This product is neither tested nor
represented as suitable for medical or
pharmaceutical uses.
HEALTH AND
ENVIRONMENTAL
INFORMATION
To support customers in their product
safety needs, Dow Corning has an
extensive Product Stewardship


