Special Coatings & Glue

Products for very special applications

Cera Glue AA

Cera Glue AA is a fiber-free, ready-to-use, water-based, high-temperature-use (up to nearly 1500 C [2732 F]) bonding glue for Alumina-to-Alumina or for bonding high-Alumina content ceramics to one another.  Cera Glue bonds parts together dramatically, creating a strong adhesive connection of the pieces.  Also this glue can be used with dense or porous surfaces: just apply two coats to both faces to be bonded, drying between each coating at room temperature or at 60 C, followed by heating up to at least 1500 C in any atmosphere for around ½-2 hours.  NOTE that this product DOES NOT contain Boron Nitride.

Key Attributes
  • Specifically designed for Alumina-to-Alumina or for high-Alumina parts
  • Usable to nearly 1500 C, higher than other bonding agents
  • Glue is highly stable/unreactive with many materials – even molten ones
  • Provides very strong joining of parts
  • YAG (YAG, 3Y2O3*5Al2O3) based, phosphate-refractory bonded
  • Contains no RCF (Refractory Ceramic Fiber)
  • Water-based – easy cleaning and diluting if needed
Ideal Use
  • Bonding parts
  • Glue-repair of broken or chipped ceramic/refractory parts
  • Hermetically sealing tubes and bonded parts
  • Creating large complex parts from separately sintered components

Link to PDF datasheet: Cera Glue AA

Cera Glue Sealcoat

Cera Glue – Sealcoat is a water-based coating that can glue ceramic pieces as well as forming a vitreous impervious seal on most ceramics that withstands thermal cycling.  This product requires a one-time bake-on at 800-850 C for ½ to 1 hour for use up to nearly 800 C (1472 F).

Key Attributes
  • Bonds ceramics
  • Vitreous layer of non-silica ‘glaze’
  • Applied like house paint
  • Safe, water-based
Ideal Use
  • Gluing ceramic pieces and boards
  • Sealing ceramic surfaces from gaseous

Link to PDF datasheet:  Cera Glue Sealcoat

Type T

Type T is a relatively-soft, washcoat-type of  Titanium Carbide coating that provides a high-purity (>99% ) layer which is usable in vacuum and inert atmospheres to >2000 C (>3632 F).  This coating should NOT be used in air atmospheres.

Key Attributes
  • Very stable coating on Graphite substrates
  • Stops Graphite diffusion into parts or topcoatings
  • Applies like housepaint – brush, dip, or spray
  • Safe, Water-Based
Ideal Use
  • Coating Graphite crucibles, molds, and trays
  • Barrier coating to carbothermic reduction of oxide coatings in vacuum (typically extends use-temperatures of oxide topcoatings by 100-200 C)

Link to PDF datasheet: Traycoat-A-Aerosol-Brushable

Type G

Type G is a Gadolinium Oxide coating which uses very high purity (99.99%) Gd2O3 with a minimal amount of cellulosic binder to allow easy paintability and adherence with typical use-temperatures being near room temperature. However, the coating can be used also as a washcoat (low adherence) coating in the same fashion as our Type Y (Y2O3) coating, only in vacuum/inert atmospheres when
use-temperatures exceed 200 C (392 F). Type G is considered a “neutron absorber coating” and, as such, can be milled with Aluminium Oxide cylinders/balls to give smaller particles, if desired for such application.

Key Attributes
  • High thermodynamic stability
  • Applies like house paint – brush, dip, or spray
  • Gadolinium has the highest thermal neutron absorption cross section of any naturally occurring element
Ideal Use
  • Neutron capture
  • Nuclear applications
  • Barrier coating to interactions during heat treating

Link to PDF datasheet: Type G

Type E

Type E is a relatively-soft, washcoat-type of  Erbium Oxide (Y2O3) coating which provides a very-high-purity (99.99%) Er2O3 layer that is usable in vacuum and inert atmospheres to 2000 C (3632 F).  This coating can be used instead of Type Y (Y2O3) whenever Yttrium is not desired, yet the properties of Y2O3  are needed.  Type E should NOT be used in air atmospheres.

Key Attributes
  • Maintains Consistent Carbon Contents of Sintered Parts
  • Prevents Warping
  • Extends Tray Lifetime
  • Reaction-barrier Layer
  • Easy-to-Use, Fast-Drying, Solvent Based
Ideal Use
  • Graphite Trays/Boats for Cobalt-bonded WC, TiC, TaC Parts
  • Carbon Barrier/Separator Layer
  • Rare Earth Magnets
  • Reactive Refractory Metal Sintering

Link to PDF datasheet:Type E