Paints and Sprays

T E C H N I CA L DATA

General Properties
Boron nitride’s high-temperature properties make it a preferred thin coating for multiple applications. Boron nitride paints and sprays areused to coat molten metal handling systems because they limit metal adherence and extend the life of refractory linings. Applications include
coating in glass, steel and ceramic industries, high-temperature lubricant materials, release agents for the metallizing industry, protective
coating in forging, molding, heat treatment, and ceramic production. Other applications include electrical insulators in sintering and hardening
furnaces, glass-processing release agents, graphite protection in siliconizing, Al-ingot casting release agents, hot-forming release agents andlubrication, and casting table coating, coating for launderers, runners, and toughs.

Physical Properties
SolidsColor Content

BinderDensity[g/cm3]

pHvalue

BN Suspension
BNS37AGray

36–38%

Aluminaapp. 1.3

3–4

900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride coating.

BN Suspension
BNS23PWhite 22–24%

Polymerapp. 1.1

7200–500 °C — organic binder decomposes;
900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride
coating with organic binder.

BN Suspension
BNS16BO

White 15–17%BoronOxideapp. 1.1

8500°C — on hot metal surfaces;
900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride
coating with inorganic binders.

BN Suspension
BNS18BWhite 18–19% Bentonite app. 1.1

8900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride
coating with inorganic binders.

BN Suspension
BNS14B

White

8900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride
coating with inorganic binders.

BN Paste
BNP34BWhite 34–35% Bentonite——

900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Water-based boron nitride
coating with inorganic binders.

BN SprayWhite 13–17%

N/A

N/A

N/A

900 °C — in oxidizing atmosphere;
1800 °C — in inert atmosphere.

Propane/butane propellant.

Graphite Suspension
Black 20–24%
GS22—

1.11 - 1.13—

450 °C — in oxidizing atmosphere;
2000 °C — in inert atmosphere.

Water-based semi-colloidal.

Graphite Paste
GP30—

1.17 -1.19

6.5–8.5

450 °C — in oxidizing atmosphere;
2000 °C — in inert atmosphere.

Water-based semi-colloidal.

Grade

13.5–
15.5%

Black30%

Bentonite app. 1.1

Maximum Temperatures

Liquid Phase

NOTE: This data shows typical values and does not represent a specification.
Kennametal manufactures sophisticated materials in the form of castings, powders, coatings, consumables, and machined parts that resist wear, corrosion, and abrasion.
Information provided in this document is intended only for general guidance about Kennametal. Selection and purchase of Kennametal products is the sole responsibility of theproduct user. Individual applications must be fully evaluated by the user, including compliance with applicable laws, regulations, and non-infringement. Kennametal cannot knowor anticipate the many variables that affect individual product use and individual performance results may vary. For these reasons, Kennametal does not warrant or guarantee
information in this document and assumes no liability regarding the same. Kennametal makes no warranties regarding this information and disclaims all express or implied
warranties with respect to this information, including, without limitation, all implied warranties of merchantability and fitness for a particular purpose and warranties of patent
non-infringement. Kennametal will not be responsible for special, incidental, exemplary, or consequential damages that may be incurred pursuant to the use of the information
provided in this document.

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