Impregnating Resins and Varnishes

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1 Impregning Resins and Varnishes

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3 Impregnion Resins and Varnishes 3 Vacuum Pressure Impregnion (VPI) Resins Vacuum pressure impregnion is a leading process for the handling of resin in traction motors, high-voltage motors and generors. Whether your company uses a single-bar or a global impregnion process, we assist you in selecting the most approprie resin for your applicion, equipment and expected performance. Thanks to our expertise in VPI systems, system components and high-voltage testing, we are able to provide unrivalled guidance in testing and assessing the performance of our resin in your system. Finally, once you have selected the resin th best fits your needs, please ask for our technical support for the first impregnion trials: we will help you to fine-tune your processes to get the most out of our impregnion resin. This selector guide includes a selection of our finest resin choices in either epoxy, polyester, polyesterimide or silicone chemistries. All these resins have been tested and proven in our own laborories and have been successfully used by our customers. 1. Transfer preheed object to vacuum vessel. Pull vacuum. 2. Transfer resin under vacuum (the vacuum pump must be closed). Allow time to soak. 3. Release vacuum. Apply positive pressure. 4. Transfer resin back to storage tank. Put object back in oven and cure. Product Traction 3551 Chemistry Flash point Viscosity 23 C (mpa.s) Storage temp. Impreg. temp. 100% silicone C None > h 180 C 1K silicone resin. Excellent reference for high-temperureresistant motors, like traction LoV Epoxy without F None > h 160 C No VOC. One component epoxy resin. Low viscosity for easy traction repair Permafil 707 Epoxy F None > < h 150 C Polyester H h 150 C Highly reactive. Good results on stic curing. Very well adapted for traction motors. Alternive to silicone resins for AC and DC high-voltage traction motors. Outstanding resistance to thermal shock. Traction and HV motors up to 6.6 kv 3340 (Samicabond) H h 150 C Highly reactive, yet highly stable room-temperure impregning resin. Good results on stic curing (Samicabond) H h 140 C Highly reactive, yet highly stable room-temperure impregning resin. Good results on stic curing. Permafil Epoxy 1K H NA > h 160 C Good thixotropic resin. High resin build. High-temperure resistance. *Without heing-up time NA: not applicable

4 4 Impregnion Resins and Varnishes Product Chemistry Traction and HV motors up to 15 kv 3308 (Samicabond) Flash point Viscosity 23 C (mpa.s) Storage temp. Impreg. temp. H h 140 C Highly reactive, yet highly stable room-temperure impregning resin. Good results on stic curing (Samicabond) H h 150 C Highly reactive, yet highly stable room-temperure impregning resin. Good results on stic curing. HV motors and generors up to 15 kv 3313 Permafil / epoxy H 9153/ h 150 C Epoxy 1K H None > h 160 C High mechanical properties. Good results on stic curing. 1K epoxy resin without diluent. Very low organic emission (VOCs<2%). HV motors and generors up to 22 kv Epoxy/ anhydride Epoxy/ polyester *Without heing-up time F None > < h 170 C F < h 150 C NA: Not applicable Accelered tape needed. Highly reactive roomtemperure impregning epoxy-modified resin. Storage below 5 C. Overco Varnishes The Damico range of finishing and overco varnishes includes air-drying and oven-curing solutions. They are all single-component for easy processing by spray, brush and even dipping and dip-rolling processes. Product Chemistry Color* Damico 2404 Damico Alky phenol Flash point Viscosity 23 C (mpa.s) Drying time** RB/G F / h Highly chemically resistant overco varnish. Alkyd N/RB/B F /470/ mn Multipurpose fast-curing overco varnish with good fungicide characteristics. Outstanding antitracking properties. Damico 2407 Alkydmodified RB F/H h High-temperure-resistant overco varnish, used up to H high-voltage and traction machines. *B: black G: gray N: nural RB: red/brown **Tack-free

5 Impregnion Resins and Varnishes 5 Atmospheric and VPI Dipping Resins The following range of impregning resin is designed for the trement of low-voltage roting machines and transformers. Product Chemistry UL 2005 Flash point Viscosity 23 C (mpa.s) Alkyd phenolic Yes H h Universal varnish with good mechanical properties for any kind of applicion on motors or transformers Yes H h High-temperure-resistant varnish with excellent flexibility. Commonly used on transformers and resin-rich processes SFR Modified epoxy Yes H h Universal varnish with outstanding chemical resistance properties, including all freon types (hermetic motor use) Modified alkyd Yes F h Silicone No C 9114/ h 200 C* Very flexible universal varnish. Excellent solution for repair shops. High-temperure-resistant C silicone varnish. Especially convenient for traction motors and fire resistance applicions polyesterimide Yes F h C* Multipurpose F resin. Commonly used on low-voltage motors in continuous process Yes H Polyester/ epoxy 2 h 140 C* Yes H h Multipurpose H resin. Outstanding dielectric properties up to H. Class H resin with outstanding bond strength eleved temperure. Mainly used on low-voltage motors and generors Yes H h Class H resin. Outstanding dielectric properties up to H. The 200 mpa.s version will be used on transformers LoV Epoxy 1K Yes H None > h 160 C* Extremely low organic emission (VOC) epoxy resin. Outstanding stability and dielectric properties up to H Yes H None > h Multipurpose less varnish. High stability. Outstanding thermal aging properties. No VOCs. Low organic emission. *Most common oven-curing process

6 6 Impregnion Resins and Varnishes Trickle and Dip-Roll Resins Product Chemistry UL Gelco Special polyester Flash point Viscosity 23 C (mpa.s) Yes F ,000** 15 mn 120 C* Excellent bonding resin for power tool collectors. Very high mechanical properties under high stress polyesterimide Yes H mn 120 C* Strongly reactive, resistant to high mechanical and electrical stress resin. Mainly used for rotors (power tools) polyesterimide Yes H mn 120 C* Strongly reactive, resistant to high mechanical and electrical stress resin. Mainly used for rotors (power tools) polyesterimide Yes H mn 140 C* Highly reactive and flexible resin. Recommended for low-voltage industrial stors Yes H mn 130 C* Multipurpose H resin. Highly reactive compared to any other singlecomponent resins, yet very stable Polyester/ epoxy Yes H mn Multipurpose H resin. Excellent high-temperure mechanical properties. Commonly used on low-voltage motors and generors HiR 3630 Epoxy 1K Yes H *None > mn 160 C* Yes H None > mn Extremely low organic emission (VOC) epoxy resin. Outstanding reactivity and mechanical properties up to H applicion. Multipurpose less varnish. High stability. Outstanding thermal aging properties. No VOCs. Low organic emission. *Measured on the copper ** Thixotrop effect Bonding and Encapsulion Resins Product 2154 Damival 15182OA/ Damival 15174OB Chemistry Epoxy werbased varnish Epoxy unfilled Flash point Viscosity 23 C (mpa.s) F/H Wer > h 135 C* F NA > h 25 C Specific wer-based varnish used to glue power generors and stor ples. Low-viscosity cold-curing F system for glass and polyester fiber impregnion. Already approved for high-voltage generors. Damival 15182OA/ Damival 9030 Epoxy unfilled H NA > h 135 C Hot-curing system with higher temperure resistance than Damival 15182OA / 15174OB. Already approved for highvoltage generors. Damival 15230OA/ Damival 15230OB Epoxy unfilled F NA >100 10, h 25 C Cold-curing system, suitable for casting of end bars connection boxes. Already approved for high-voltage generors. Damival 15350NA/ Damival 15210OB Epoxy unfilled F NA > h 25 C Cold-curing system, low viscosity, UL94 V0 approved, excellent level of thermal conductivity, suitable for low-voltage stor encapsulion. Damival 13553AN/ Damival Poylurethane F NA > h 25 C Cold-curing system, UL94 V0 approved, low smoke emission type, good thermal conductivity, suitable for low-voltage stor encapsulion. *Under press NA: not applicable

7 Impregnion Resins and Varnishes 7 The Green Range Announcing the new Von Roll European impregning resin portfolio:, Damico and Damival. All our new products are engineered to be environmentalfriendly and economical, with low processing costs as well as low associed maintenance costs. Innovion in impregnion resins and varnishes is a genuinely collaborive enterprise involving a gre deal of teamwork with many different internal and external partners. As far as system testing is concerned, Von Roll provides extensive support to the industry thanks to its UL 1446 certified laborory for voltages below 600V and thanks to two high-voltage laborories in Schenectady (USA) and Breitenbach (CH). Last, but not least, within Von Roll, innovion in liquids is a global effort: both American and European R&D teams constantly exchange informion to accelere time to market. In the industry several complex European environmental programs and directives are already in effect:» REACH (Registrion, Evaluion and Authorizion of Chemicals)» ROHS (Regulion on Health and Safety)» VOC (Volile Organic Compound directives 1 999/13/CE /CE) We are now in a position to offer good technical as well as economical solutions to our customers in the face of these new challenges. Product 3630 Chemistry Flash point Viscosity 23 C (mpa.s) time H > mn * Multipurpose H less varnish. High stability. Outstanding thermal aging properties. No VOCs. Low organic emissions LoV 3500 HiR Permafil Epoxy 1K H > h 160 C* Epoxy 1K H > mn 160 C** Epoxy 1K H > h 160 C* Silicone C > h 180 C* Multipurpose H less varnish. No VOC. Very low organic emission. Outstanding stability and dielectrical properties up to H applicion. Recommended on mospheric, V(P)I or hot-impregnion dipping process for low- to medium-voltage motors and transformers. Multipurpose H less varnish based on epoxy chemistry. No VOC. Very low organic emission. Outstanding reactivity and mechanical properties up to H applicion. Recommended on trickling and dip-rolling process for low-voltage motors. 1K epoxy resin without diluent used for high-voltage machines up to 15kV. Very fl dissipion curves up to 220 C. Very low organic emissions (<2%). 1K silicone resin for C applicion. Excellent reference for high-temperure-resistant traction motors. *Most common oven-curing process **Measured on the copper

8 We Enable Energy Von Roll is the sole full-range supplier of merials and systems for the insulion of electrical machines as well as high-performance products for various high-tech industries. Mica Merials reled to high-voltage insulion. Von Roll s commitment is extensive including all the steps in the manufacturing process. Flexibles Insuling flexible merials for low-voltage applicions such as flexible lamines and adhesive tapes. Wires Insuled round, fl and Litz wires for high-voltage, low-voltage and electronic applicions. Cables Mica tapes for fire-resistant cables. Von Roll provides a wide range of products th are ideally suited to all commonly used standards. Liquids Impregnion resins for high and low voltage, potting resins, casting resins, as well as encapsuling and conformal coings. Composites Engineered merials made from a resin and a support structure with distinct physical, thermal and electrical properties. They can be molded, machined or semi-finished. Please contact us or visit our website for further informion: Europe, Middle East, Africa Von Roll Holding AG Steinacherstrasse Au ZH Schweiz/Switzerland P F Asia/Pacific Von Roll Asia Pte Ltd. Blk 6 Serangoon North Avenue 5 Singapore Singapore P F Transformers High-perfomance transformers for power transmission and distribution, tailored solutions to all applicions of today s energy supply companies. Testing Von Roll provides electrical, thermal and mechanical testing of individual merials as well as complete insuling systems. We are UL-certified. Training Von Roll Corpore University provides a training program in high- and low-voltage insulion to its customers. Americas Von Roll USA, Inc. 200 Von Roll Drive Schenectady NY USA P F About Von Roll As one of the longest established industrial companies in Switzerland, founded in 1803, we focus on products and systems for power generion, transmission and distribution, roting machines and mechanical engineering. Von Roll is the global market leader in insulion products, systems and services and is represented more than 32 locions in 19 countries with around 3,400 employees. All informion in this document subject to the product liability clause as published in the website under legal informion.