Generator & Motor Products Overview
| Cure Type | Operating Class | Area of Use | Typical Generator / Motor Application | Product Number |
Potting & Encapsulation
High Voltage Connections
| Room Temp | Class B | Stator | Pourable epoxy for potting stator bar connections, typically bottom caps in hydro generators. Formulated for high mechanical strength to withstand thermal cycling. |
3060 |
| Room Temp | Class B | Stator | Very thick, non-sagging epoxy used for potting stator bar connections, typically top caps in hydro generators. Formulated for high mechanical strength to withstand thermal cycling. | 3190 |
| Room Temp | Class F | Stator | Pourable epoxy for potting stator bar connections of steam, gas, and hydro generators. Formulated for high mechanical strength to withstand thermal cycling. | 3170 6979 |
| Room Temp | Class F | Stator | Very thick, non-sagging epoxy used for potting stator bar connections, typically top caps in hydro generators. Formulated for high mechanical strength to withstand thermal cycling. | 6980 |
| Room Temp | Class F | Stator | Thixotropic, non-sagging epoxy for potting stator bar connections of steam and gas turbine generators. Formulated for high mechanical strength to withstand thermal cycling. | 3169 3375 |
| Room Temp | Class F | Stator | Thermally conductive, non-sagging, for potting stator bar connections of steam and gas turbine generators. Formulated for high mechanical strength to withstand thermal cycling. | 3475 3480 |
HV Bushings & Insulators
| Room Temp | Class B | HVB | Pourable, glass-reinforced, used in bonding porcelain to metal flange around stand-off insulators. Exhibits excellent mechanical strength and thermal cycling characteristics. | 6100 |
| Room Temp | Class F | HVB | Pourable, glass-reinforced, used in bonding porcelain to metal flange around stand-off insulators. Exhibits excellent mechanical strength and thermal cycling characteristics. | 6150 |
Gland Sealant
| Room Temp | Class F | Multiple | Flame-retardant (UL 94V-0 flammability rated) gland sealant for potting wiring conduits, glands, and explosion-proof electrical components. | 6804 |
Flooding & Bonding Resin Systems
Flooding, Taping, & Blocking
| Room Temp | Class B | Stator | Low viscosity epoxy for felt saturation, blocking, taping, and flooding of end-windings. | 3247 |
| Room Temp | Class F | Stator | Medium viscosity epoxy for felt saturation, blocking, taping, and flooding of end-windings. | 3104 |
| Room Temp | Class F | Stator | Low viscosity epoxy for felt saturation, blocking, taping, and flooding of end-windings. | 6415 / 6269L |
| Room Temp | Class F | Stator | Medium viscosity epoxy for felt saturation, blocking, taping, and flooding of end-windings. | 6269 |
Felt & Blocking Installation
| Heat / Bake | Class F | Stator | Medium viscosity epoxy for installing and securing impregnated felt and blocking between stator bars and end-winding support structures. | 6929 |
High Temperature Insulating Varnish
| Heat / Bake | Class H | Stator | Single part, solvent based epoxy insulating varnish with high temperature resistance. | 3406 |
Insulating Tapes
| - | Class F | Stator, Rotor | Dry mica paper tapes, resin-rich mica 'bake tapes' and woven glass tapes of various dimensions. Used with multiple taping and flooding resins to build up layers of electrical insulation. | Multiple |
Resin Systems for Saturating & 'Wet Tying'
Resin Systems for Saturating & ‘Wet Tying’
Wicking Resing & Consolidation
| Room Temp | Class B | Stator | "Red Eye" weeping epoxy for coating and saturating stator end-windings, filling small voids to bond/consolidate insulation. Ideal for bonding stator core laminations. | 6250 / 3093 |
| Room Temp | Class F | Stator | "Red Eye" weeping epoxy for coating and saturating stator end-windings, filling small voids to bond/consolidate insulation. Ideal for bonding stator core laminations. | 6414 |
| Room Temp | Class F | Multiple | Low viscosity semi-resilient epoxy for saturating structural composites and/or insulation where a tough, high-strength resin is needed to saturate porous or laminated substrates. | 6413 |
Saturant for Standing, Ties, Tapes & Felt
| Room Temp | Class F | Stator | Low viscosity 'Wet Tie' epoxy, used to saturate stranded glass roving, tapes, and felt for tying and blocking. | 6415 |
| Room Temp | Class F | Stator | Medium viscosity 'Wet Tie' epoxy, used to saturate stranded glass roving, tapes, and felt for tying and blocking. | 6269 |
| Room Temp | Class F | Stator | Low viscosity 'Wet Tie' polyester used to saturate stranded glass roving, tapes, and felt for tying and blocking. | 3109 / 6021 |
| Heat / Bake | Class F | Stator | Heat cure 'B-stage' epoxy used to saturate Dacron felt, braded glass tapes, and stranded glass rovings (105c cure material). | 3166 |
| Heat / Bake | Class F | Stator | Polyester dip coating for motor, generator, transformer, and magnet coils. Laminating varnish for glass cloth and tapes. | 3405 |
Gap Filling & Potting
| Room Temp | Class B | Stator | Low viscosity epoxy ideal for filling, potting, and consolidating small/narrow spaces and voids. Excellent chemical resistance. | 6946 |
Wet Winding Epoxy
| Heat / Bake | Class F | Multiple | 'Wet-winding' epoxy for use on rotating or stationary field coils (pole pieces). Excellent for use in the impregnation, bonding, and sealing of electrical and mechanical components | 2530 |
Exterior Protective Coatings
| Room Temp | Class F | Frame | Two-component zinc rich epoxy primer for excellent corrosion resistance, designed for ISO 12944 C5 corrosion environments as well as IEEE™ C57.12.32 electrical enclosures. Designed to be used with Astro 4015. | 4010 |
| Room Temp | Class F | Frame | Two component, epoxy primer/direct-to-metal (DTM) single-coat system designed for applications requiring excellent corrosion, moisture and water barrier properties. High solids coating that will cure at very low temperatures and in the presence of moisture. | E101 |
| Room Temp | Class F | Frame | Two component, epoxy primer/midcoat designed for applications requiring excellent corrosion, moisture and water barrier properties. Multiple and custom colors available. | E301 |
| Room Temp | Class F | Frame | Two component, epoxy primer/midcoat designed for applications requiring excellent corrosion, moisture and water barrier properties. Used with Astro 4010 zinc-rich primer for ISO 12944 C5 corrosion environments and IEEE™C57.12.32 submersible electrical enclosures. | 4015 |
| Room Temp | Class F | Frame | Two-component urethane coating designed to give maximum exterior durability and colorfastness, dielectric insulation, and chemical resistance. Multiple and custom colors available. | U401 |
Adhesives
Pastes for securing wedges, bolts & hardware
| Room Temp | Class B | Stator | General purpose 'Peanut Butter' epoxy paste typically used as a 'hardware epoxy' for locking end-wedges, bolts, and filling larger gaps and voids in Class B and Class F generators and motors. | 6000 |
| Room Temp | Class B | Stator | Thicker version of 6000 with a greater sag/slump resistance. Ideal for use on vertical or inverted surfaces where the adhesive must remain in place as applied . | 6200 |
| Room Temp | Class F | Stator | Class F version of 6000. Epoxy paste typically used for locking end-wedges, bolts, and filling larger gaps and voids. Excellent general purpose adhesive. | 6422 |
Bonding Rubber Seals & Baffles
| Room Temp | Class F | Stator / Frame | Flexible, thixotropic, epoxy adhesive for bonding porous substrates and most elastomers, including Butyl and Neoprene rubber to metal parts. | 6001 |
General Purpose, Multi-Substrate Adhesives
| Room Temp | Class B | Multiple | Flowable epoxy adhesive exhibiting outstanding flexibility, resilience, peel strength, and excellent multi-substrate adhesion. | MB-14X |
| Room Temp | Class B | Multiple | Thick, filled adhesive exhibiting outstanding flexibility, resilience, peel strength, and excellent multi-substrate adhesion. | MB-127 |
| Room Temp | Class F | Multiple | Very thick, cartridge-based, paste adhesive exhibiting outstanding flexibility, resilience, and peel strength. Typically used for bonding metals, plastics, composites and wood. | 6421 |
| Room Temp | Class F | Multiple | Excellent general purpose, multi-substrate adhesive, used throughout generator and motor winding assemblies. (MB-300XC is available in cartridge delivery with mixing applicator nozzle) | MB-100X MB-300X |
Fast Curing, Multi-Purpose Adhesives
| Room Temp | Class B | Multiple | Thixotropic, quick-curing multi-substrate epoxy adhesive for use over a wide temperature range. | 3328-3909 |
| Room Temp | Class F | Multiple | Medium viscosity, quick-curing multi-substrate adhesive for quick bonding, insulating, patching, and filling repairs. | MB-165 / 175 / 185 |
Bonding Parts To Copper
| Heat / Bake | Class F | Rotor | Single-component epoxy which forms a 'B-stage' coating when allowed to dry. Dry to the touch when B-staged to allow movement of coated parts, prior to bake/bonding | 3096 |
| Heat / Bake | Class F | Rotor | Single-component epoxy which forms a 'B-stage' coating when allowed to dry. Tacky when B-staged to stick/secure coated parts in place to prevent movement, prior to bake/bonding | 6229 / 6271 |
| Room Temp | Class F | Stator / Rotor | Two-component, faster cure epoxy adhesives for bonding various forms of electrical insulation to copper. Multiple viscosities and cure times available. | Multiple |
Filling & Conforming
Smoothing Edges & Transitions In Preparation For Taping
| Heat / Bake | Class F | Stator | "Bar Seal" polyester compound used to even out irregular shapes prior to taping stator bars. The material exhibits a viscosity similar to glycerin, which aids in the taping process. | 6201 / 6207 |
| Room Temp | Class F | Stator | Polyester putty used to smooth and insulate high voltage connections prior to taping/encapsulating. This material is a highly-filled polyester that cures to a rubbery solid. | 6203 |
| Room Temp | Class F | Stator | Epoxy putty used to smooth and insulate high voltage connections prior to taping/encapsulating. This is also used as a filling and smoothing compound in the manufacture of stranded stator bars. | 6204 |
Smoothing & Sealing Rough Surfaces
| Room Temp | Class F | Stator | Smoothing compound for sealing and smoothing stator bar surfaces | 6152 |
Filling Voids Between Copper Strands
| Room Temp | Class F | Stator | Semi-flowable 'Strand epoxy' for filling and potting voids between copper stranding. | 6103 / 6210 |
| Room Temp | Class F | Stator | Thick 'Strand epoxy' for filling and potting voids between copper stranding. | 6231 |
Protective Coatings
Zinc Rich Primer
| Room Temp | Class B | Frame | Two-component zinc rich epoxy primer for excellent corrosion resistance, designed for ISO 12944 C5 corrosion environments as well as IEEE™ C57.12.32 electrical enclosures. | 4010 |
Dielectric & Protective Coatings
| Room Temp | Class F | Multiple | Two-component epoxy paint designed to give maximum durability, dielectric insulation, and a high degree of chemical resistance - Multiple Color Options Available | Multiple |
| Room Temp | Class F | Stator / Rotor | Two-component urethane coating designed to give maximum exterior durability and colorfastness, dielectric insulation, and chemical resistance. Multiple and custom colors available. | U401 |
| Room Temp | Class F | Stator | Pourable epoxy for potting stator bar connections of steam, gas, and Hydro Generators. Formulated for high mechanical strength to withstand thermal cycling. | 3170 / 6979 |
| Room Temp | Class F | Stator / Rotor | Single-component phenolic-modified alkyd coating designed to provide physical and chemical resistance when applied to industrial surfaces (Beige & Arctic Blue). Water reducible. | 6956 / 6962 |
| Room Temp | Class F | Stator / Rotor | Clear, single component insulating varnish designed for applications where oil, moisture and acid-resistance are desired. Often used as a final layer giving a hard, glossy protective coating. | 9620 |
| Room Temp | Class F | Stator / Rotor | Single-component, low VOC, rust inhibited, phenolic-modified alkyd coating designed to provide corrosion protection of metal surfaces. (several colors available) | Multiple |
| Room Temp |
Semi-Conductive & Corona Protection Products
Corona Protection: Stator Windings
| Room Temp | Class F | Stator | Red, single-component, corona-resistant / dissipative, silicone alkyd coating designed to protect insulation surfaces from corona damage. Typically applied as a finish / primer coat to air-cooled stator end-windings. | 6971 |
| Room Temp | Class F | Stator | Single-component, Silicon Carbide silicone-alkyd gradient paints typically applied to insulation surfaces on the end-winding section of stator bars. | 3190 |
| Room Temp | Class F | Stator | Three-component, Silicon Carbide epoxy gradient paints typically applied to insulation surfaces on the end-winding section of stator bars. | Multiple |
Corona Protection: Stator Bar Slot / Core
| Room Temp | Class F | Stator | Single-component, semi-conductive graphite based corona protective silicone alkyd paint applied to stator bar insulation surfaces on core slot section of the stator bar. | Multiple |
| Room Temp | Class F | Stator | Two-component, semi-conductive graphite based corona protective epoxy paint applied to stator bar insulation surfaces on core slot section of the stator bar. | Multiple |
Conductive Adhesive
| Room Temp | Class F | Stator | Two-component, semi-conductive graphite based corona protective adhesive applied to stator bar insulation surfaces on core slot section of the stator bar. | 6011 / 6026 |
Conductive RTV Silicone
| Room Temp | Class F | Stator / Core | Single-component, semi-conductive silicone adhesives for establishing electrostatic grounding between stator components and the stator core. | 3147 / 6322 |
Frame
Interior Protective Coatings
| Room Temp | Class F | Frame | Single-component, low VOC, rust inhibited, phenolic-modified alkyd coating designed to provide corrosion protection of metal surfaces. (several colors available) | Multiple |
Miscellaneous Consumables
Neoprene Hydrogen Seals
| - | Class F | Stator, Rotor | Electrical grade, molded to OEM specifications back to the 1950s. Chevrons, Collector Connection, Top Hat, Gland, Bore Seals, Washers (Tapered, Flat), Bushing Sets, & O-Rings. | Multiple |
Gasket Adhesives
| Room Temp | Class F | Stator, Rotor | Two-component epoxy adhesives formulated to bond elastomers (neoprene, Viton) to metals. | Multiple |
RTV Silicones
| Room Temp | Class F | Stator, Rotor | Room temperature vulcanizing silicones for bonding, molding, sealing, and gasketing. Available in a variety of Shore A and Shore D hardnesses. | Multiple |
Anerobic Adhesives
| Room Temp | N/A | Stator, Rotor | Single-component, fast curing adhesives, threadlockers, and retaining compounds. | Multiple |
Solvents
| - | N/A | Stator, Rotor | Solvents for thinning coatings and adhesives, as well as cleaning substrates and tooling. | Multiple |
