Laminated blocks are superior to natural wood and cross-laminated wood, where enhanced dimensional stability, resistance against compression, and superior electrical insulation properties are required. 
The laminated precompressed board is basically a high-density (HD) board glued together for thicknesses above 8 mm up to 200 mm. It exists in two versions, either with polyester glue (HDLP) or with casein glue (HDLC).
Why Hitachi Energy
- More than 150 years of experience in insulation
 - Complete range of insulation products for liquid-filled transformers; comprehensive range for dry-type
 - Complete range of insulation products for transformers from 11 kV up to 1,200 kV AC and 800 kV DC
 - Material excellence
 - Global footprint