flame resistance paper honeycomb cleanroom panel Paper Honeycomb Core has core diameter of P180 and lower 19∮. Its core material is light with flame resistance feature. Primary used in the cleanroom system. Panels are comprised with Germany high standard adhesives. The adhesive is non-outgassing and non-pollutions with zero chemical reaction under uncertain environment such as high range of temperature and humidity. Paper Honeycomb has same sonic resistance as PU and PF panels; however, its heat resistance has lower capability then others. Paper honeycomb panel can promise the highest standard features with low cost in the internal cleanroom partition when heat resistance is out of concern. Over all, paper honeycomb panel has ZERO outgassing, light and non-pollutions features. flame resistance PU panel‧flame resistance aluminum honeycomb cleanroom panel‧1 and 2.5 hours fire rated rock-wool panel