Procedure: Adhesion test
Randomly selected production samples were conditioned at 160 degrees F. Specimens were then checked for signs of delamination of the material from the substrate. No delamination was noted.
Adhesion to the substrate was then checked. Results indicate a good bond between the crossed link foam and the PP substrate.
Utilizing the same samples as well as two previously untested samples for control, the specimens were conditioned at minus 10 degrees F. No delamination was noted.
Adhesion to the substrate was then checked. The bond between the material and the substrate remained excellent.
Conclusion: Adhesion test
Based on the samples tested, the results indicate good adhesive integrity throughout the extreme temperature ranges.
Procedure: Abrasion test
Tests were performed in accordance with a modified version of ASTM D-5264-92 method.
Class “A” surfaces were subjected to 250 plus cycles utilizing a standard 2-pound block.
No marking or abrasion of the surfaces were observed.
Abrasion testing was performed at an ambient temperature and humidity.
Water saturated samples negate the protective qualities of spunbond and lead to testing failure and scuffing of class “A” surfaces almost immediately.
Conclusion: Abrasion test
Bases on the samples tested, the results indicate good adhesive integrity throughout the extreme temperature ranges.
Abrasion protective qualities were good providing parts were protected from water saturation.
As with all packaging applications, simulated transport testing should be conducted utilizing the actual packaging and parts to be protected as the configuration of the parts can play a significant role in the success or failure of protective packaging.
