diff --git a/src/utils/MatHelper.php b/src/utils/MatHelper.php
index 53de71c..54aed78 100644
--- a/src/utils/MatHelper.php
+++ b/src/utils/MatHelper.php
@@ -37,7 +37,7 @@ class MatHelper{
             $material->setFilmior($matOriginal->matParams->filmIor);
         }
         if($matOriginal->matParams->isSheenEnabled === self::OPEN){
-            $material->setSheen(($matOriginal->matParams->sheen)*(100/3));
+            $material->setSheen(($matOriginal->matParams->sheen) * 20);
             $material->setSheentint($matOriginal->matParams->tintIntensity);
         }
         if($matOriginal->matParams->isAnisotropyEnabled === self::OPEN){
@@ -258,9 +258,9 @@ class MatHelper{
     static function hex2floatColor($hexColor){
         $floatColor = '';
         $hexColor = trim($hexColor);
-        $r = (hexdec(substr($hexColor, 1, 2))/256) ** 2.2;
-        $g = (hexdec(substr($hexColor, 3, 2))/256) ** 2.2;
-        $b = (hexdec(substr($hexColor, 5, 2))/256) ** 2.2;
+        $r = (hexdec(substr($hexColor, 1, 2))/255) ** 2.2;
+        $g = (hexdec(substr($hexColor, 3, 2))/255) ** 2.2;
+        $b = (hexdec(substr($hexColor, 5, 2))/255) ** 2.2;
         $floatColor = "$r $g $b";
         return $floatColor;
     }