IOTA OPSZ
1800 Heat Curable Coating Resin(Organopolysilazanes OPSZ)
Description:
1. Enables
the heat-curable coatings capable of withstanding operating temperatures of
1000 °C or above.
2. Supplied
as a 100% "solids" liquid of low viscosity which rapidly solidifies
upon heating to 200°C.
3. Solidification
can be achieved at lower temperatures with the addition of a free radical
initiator such as dicumyl peroxide.
4. With
the free radical initiator employed, cure from liquid to solid can be
accomplished in times ranging from 1 to 90 minutes over a temperature range of
100°C to 180°C.
5. The
peroxides are typically dissolved in solvent free polymer at the 0.5 to 1.0wt%
level based on the weight of polymer employed.
6. Cure
without the use of a peroxide can be effected by heating to 200 – 250°C.
7. For
ultra-high temperature formulations, the coated part is then heated to at least
425°C to promote conversion of the polymer to ceramic.
8. Depending
on the exact formulation, the resulting coatings are then durable at peak use
up to temperatures of 1800°C.
Formulation and Application:
Typically
added at 10 – 60 wt. % and is compatible with a wide array of solvents
including alkanes, aromatic hydrocarbons, ethers, ketones, esters, etc.
Heating
to temperatures above 700°C converts the resin to a ceramic.
High
Temperature Ceramic Coatings.
Thermally
Stable Anticorrosive Coatings.
Non-stick
Coatings.
Typical Formulated Coating
Properties:
Color:
Variable
Finish:
Matte to Satin
Resin
Solids: 10 – 60%
Film
Thickness: 10 – 300 μm
VOC:
Depends on formulation
Pencil
Hardness: > 9H
Chemical
Resistance: Good
Thermal
Resistance: Up to 1800°C
Thermal
Shock: Fair
