J-match polyester insulation batts description: R-value: 3.5 Fiber dia.: 17.8~ 47.8ª8m Temperature: - 44 ~ +100íµ Thickness: 10~200ía2mm Percentage of moisture ín0.5% Hydrophobic rateí²98% Moisture rate each cubeín0.1% Wrvú+0.20md/cm2 Permanent set after compressed ín2% 45ípburning: difficult to burn Thermal conductivityín0.034% w/m. K Not toxic-gas during burning, doní»t drip 16pcs/pack, Pe package after vacuum compressed/