I shaped and glassed a prone foil board constructed of XPS (pink panther foam board from home depot). It lasted just 1 year until the deck started delaminating under my front foot. I had full deck traction pad. It seems all the front foot pumping pressure accelerated the delamination process. Oddly, the rear foot area didn't suffer any delamination. I have 2 vents installed and I always stored the board inside the garage. I used to drive a hatchback with the board inside the car, but recently I started going to the beach in my truck and the board would be in the bed. The drive is 30-60 minutes to the water, depending on which beach I go to. So the board would be exposed to direct sunlight during travel times. I suspect the additional heat could have played a small part but the board was always deck facing down. There was absolutely no delam on the bottom or anywhere else on the board.
I didn't see you dust of the 80grit. The dust could have caused the patches of bad adhesion. An 80 grid dust free surface combined with pin pricks woul be another interesting sample, I could imagine it beating all others.
I shaped and glassed a prone foil board constructed of XPS (pink panther foam board from home depot). It lasted just 1 year until the deck started delaminating under my front foot. I had full deck traction pad. It seems all the front foot pumping pressure accelerated the delamination process. Oddly, the rear foot area didn't suffer any delamination. I have 2 vents installed and I always stored the board inside the garage. I used to drive a hatchback with the board inside the car, but recently I started going to the beach in my truck and the board would be in the bed. The drive is 30-60 minutes to the water, depending on which beach I go to. So the board would be exposed to direct sunlight during travel times. I suspect the additional heat could have played a small part but the board was always deck facing down. There was absolutely no delam on the bottom or anywhere else on the board.
Thanks for sharing 👍
I'm pretty sure a more aggressive grit like 40 followed by a dusting and wipe down with alcohol would double the adhesion.
Looks like sanding and pricking the xps would probably give the best results based on your results. I'd try that next if you haven't already mate.
Im blue da ba de daba da(probably the cold)😁
Nice test professor.👌🏼
I didn't see you dust of the 80grit. The dust could have caused the patches of bad adhesion. An 80 grid dust free surface combined with pin pricks woul be another interesting sample, I could imagine it beating all others.
can this type test be use on fiber metal laminates? I'm trying to find delamination test for FML.
Professor Derek