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Novel Silicone Hardener for Eco-friendly Heat Resistant Coatings

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For many years coatings based on methyl/phenyl silicone resins have proven to be one of the most effective and reliable products within the high heat and protective coatings segments. Their inorganic characters along with the methyl/phenyl modification provide outstanding long term thermal stability, attractive corrosion protection, weather resistance and good mechanical properties. In general, silicone resins for high heat applications can be categorized into two sub-groups: i) oven curing and ii) ambient temperature curing systems.
In the case of typical oven cured silicone

Product Number: 51323-18951-SG
Author: Francisco Cortes Baledon, Markus Hallack, Peter Carter, Bin Cao
Publication Date: 2023
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$20.00
$20.00

Heat resistance and corrosion protection have been key drivers for the development of methyl/phenyl silicone resins, but current products are limited for high solids, low VOC formulation and longer life cycles. Oven curing silicone binders either use HAP’s solvents or provide limited durability and ambient curing resins require complex combinations of catalyst.
This paper presents a new HAP’s free silicone resin and a novel high solids NISO hardener as solutions for the high heat resistant coatings market where ambient curing and excellent corrosion protection are required. This new hardener is shown to be heat stable and offer improved weatherability and anti-corrosive properties when used together with the latest HAP’s free methyl/phenyl silicone binder and other high solids silicone resins, compared against traditional oven curing systems. The combined performance properties along with the ease of handling and low VOC’s offer the possibility to fulfill the evolving global regulations regarding environment.

Heat resistance and corrosion protection have been key drivers for the development of methyl/phenyl silicone resins, but current products are limited for high solids, low VOC formulation and longer life cycles. Oven curing silicone binders either use HAP’s solvents or provide limited durability and ambient curing resins require complex combinations of catalyst.
This paper presents a new HAP’s free silicone resin and a novel high solids NISO hardener as solutions for the high heat resistant coatings market where ambient curing and excellent corrosion protection are required. This new hardener is shown to be heat stable and offer improved weatherability and anti-corrosive properties when used together with the latest HAP’s free methyl/phenyl silicone binder and other high solids silicone resins, compared against traditional oven curing systems. The combined performance properties along with the ease of handling and low VOC’s offer the possibility to fulfill the evolving global regulations regarding environment.

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