Description
TAPPI TIP 0304-69 – Understanding Wet Strength: What are MRA, WRA, and WPA?
To determine the “wet strength” needs of a corrugated box plant, one must first define the level of “wet strength” needed. Generally, the industry has accepted three levels of “wet strength” adhesive.
1.MRA – moisture resistance, used for the lightest possible applications.
2.WRA – medium level of water resistant performance.
3.WPA – highest level of water protection performance.
TAPPI TIP 0304-69 will identify the key characteristics of each type of “wet strength” adhesive and when it would be used. Proper test methods to determine the level of water resistance of a particular box will be discussed.
Product Details
- Published:
- 2017
- Number of Pages:
- 4
- File Size:
- 1 file , 45 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
