Silicone HT 300

Adhesive Bonding Technology

High temperature resistant sealant | acetatecross-linking properties.

WEICON HT 300 adhesive and sealant is red, high-temperature resistant (+300°C/+572°F), free of solvents, strong, and has acetatecross-linking properties. It is resistant to weathering, ageing and chemicals and is extremely elastic (breaking elongation of approx. 300%).

HT 300 is particularly suitable for heat-exposed bonds and seals and adheres very well to steel, aluminium, glass, ceramics and many additional materials.

HT 300 can be used in industrial furnaces, flue gas systems, heating installations, exhaust gas routing, heating cabinets and in many additional areas.

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Adhesive Bonding Technology

WEICON products are available worldwide. We run nine international branches and are represented by over 1,200 distribution partners in more than 120 countries.

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Sector expertise
Manufacuting industry
Adhesive and sealant systems
1-part systems
silicone (RTV-1)
1-part systems
Size of application area
mm²-/mm³range - precision parts
cm²-/cm³ range - component
Curing mechanisms
moisture curing
(Mixed) viscosity
Packaging unit
small packaging unit (can, tube, etc.)
cartridge (1- or 2-part)
temperature resistance <0°C (approx.)
from -40°C
temperature resistance >0°C (approx.)
+260°C to +350°C
max temperature exposure short-term
to +300°C
colour and colour fastness
colour spectrum dark
Sh-A 21 to 40
gap filling properties
≤ 5mm
deformation capability
≤ 300%
Ecological requirements
Application Types
dot application
line, bead application
Mobility - Land Transportation / engine and drive technology
surface sealings
flange sealings
magnet bondings
Mobility - Land Transportation / vehicle exteriors
body side moldings
pillar appliqués
wheel arches
cladding components
decorative trims
rocker panels
type plates
car mirrors
functional components
windscreen bondings
trunk lid
sound insulations
high termperature isolation panels
Machine & Production Engineering / engine & drive technology
surface sealings
flange sealings
magnet bondings
Construction Components & Elements / heating, ventilation & air conditioning technology
several bondings - hvac
Defense Technology
several bondings - defense
Industrial Plants & Heavy Industry
several bondings - heavy industry
Renewable Energy / wind power
energy storage systems
Renewable Energy / solar technology
photovoltaic elements
hot water collectors
Construction & Finishing Craft / windows & doors
door frames
Sanitary & Supply Technology / HVAC
pipe connections
Sanitary & Supply Technology / sanitary technology
pipe connections
Maintenance - Industrial Facilities / oil & gas
surface sealings
Maintenance - Industrial Facilities / mining
pipe connections
Maintenance - Industrial Facilities / energy supply
several bondings - energy

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