Does The Gund Company manufacture and sell G-Board™ pressboard products?

Yes, The Gund Company manufactures and sells G-Board™ pressboard products, including cellulose-based pressboard for standard applications and aramid-based pressboard for high-temperature applications.

What are typical applications for G-Board™ pressboard?

Typical applications include power transformers, distribution transformers, instrument transformers, and traction transformers.

What are the key benefits of cellulose-based G-Board™ pressboard?

Benefits include high chemical purity, excellent mechanical strength, optimal oil impregnability, and easy molding for various transformer insulation requirements.

What standards do G-Board™ products meet?

G-Board™ cellulose-based pressboard meets and exceeds the IEC 60641-3-1 standard.

Does The Gund Company offer technical data sheets for G-Board™ products?

Yes, technical data sheets for both cellulose-based and aramid-based G-Board™ insulation materials are available for download.

Electromechanical Insulation Materials

THE GUND COMPANY'S LINE OF PRESSBOARD PRODUCTS, G-BOARD™, INCLUDES CELLULOSE-BASED PRESSBOARD FOR STANDARD APPLICATIONS AND ARAMID-BASED PRESSBOARD FOR HIGH-TEMPERATURE APPLICATIONS.

G-Board, used for electromechanical insulation in transformer applications, is manufactured using pure cellulose long fibers, free of impurities. This produces a pressboard that meets and exceeds the IEC 60641-3-1 standard.

TYPICAL G-BOARD™ APPLICATIONS

Power Transformers
Distribution Transformers
Instrument Transformers
Traction Transformers

G-BOARD™ BENEFITS

High Chemical Purity: Cellulose-based pressboard has high chemical purity, which makes it an ideal insulation material for power transformers.
Mechanical Strength: Cellulose-based pressboard has excellent mechanical strength, which helps maintain the shape and dimensions of the transformer’s oil ducts when they are electrically stressed.
Optimal Oil Impregnability: Cellulose-based pressboard can be impregnated with oil, which improves its insulation properties many times over.
Easy to Mold: cellulose-based pressboard is easy to mold and wrap around coils, and can be made of various dimensions as per requirements.

Description	TGC	Type	ENPAY	Weidmann	Pucaro	Dupont	Construction	Distribution Transformer	Power Transformer
IEC 60641-3-1 Type B 3.1 A	G-Board HD	High Density	ENPAYBOARD® E3A	T4 (TIV)	ELBOARD® HD		Cellulose	X
IEC 60763-3-1 Type B. 3.1 A1	G-Board LHD	Laminated High Density	ELBC	TX2	ELBOARD® HDLP		Cellulose	X
IEC 60641-1 Type B 4.1	G-Board LDHV	Low Density	ENPAYBOARD® E4	Hi-Val	ELBOARD® ZF		Cellulose	X
	YT594	High Density				Nomex 994 PSB	Aramid	X	X
	YT593	Medium Density				Nomex 993 PSB	Aramid	X	X
	YT592	Low Density				Nomex 992 PSB	Aramid	X	X

Cellulose-Based Pressboard Insulation Technical Data Sheets

Aramid-Based Pressboard Insulation Technical Data Sheets