Application for the Insulation Board The excellent quality of the Self-Extinguishable Grade was approved by Underwriters Laboratories Inc. (UL 94HF-1, 723) of USA, PA-III of Germany and ICBO, NES of USA with outstanding thermal insulating, moisture proofing, sound excluding and high productivity. Application for Packing I This Packing Grade Provides excellent protection for expensive goods which require high shock absorption and fire protection during transit, While the clean white color adds classic beauty to your goods.