Pressure ding repair.

General Discussion
1

[img_assist|nid=1069646|title=Pressure ding|desc=|link=none|align=left|width=640|height=480]Got a long pressure ding stretching sideways (at a 30deg angle) over the stringer at the bottom of one of my boards. No signs of the cloth underneath being damaged and no cracks in the glassing. It’s less than 1mm (1/25") deep around the stringer and slightly deeper than one mm at the end closest to the rail. The ding is about 1- 1 1/2" across and is located at the back end of the board, in front of the fins, where the single concave is at it deepest. I’m not really worried for the board to snap along that ding, but I really like that board and want it to last…
 
So what would you do?
 

  • Leave it alone.
     
  • Mask the area with a couple of layers of tape, roughen up the surface, simply fill it in with resin, and sand it level. (done that on a couple of boards when they add up dings over time and it works well even if its not by the book - but haven’t tried to do it on a pressure ding going this way and not that big)
     
  • Use fine cut fiber cloth and fill the ding that way before hot coating. Just to get some stricture so that the new glassing don’t crack. Qcell seems a bit to over do it when cheating anyway?
     
  • Repair the ding with one cloth cut matching the ding, and one on top overlapping the edges by 1/2-1".
     
  • Or treat it as a crease - cut all the glassing away, sand the edges and do the whole diamond square of cloth repair thing.

 

2

- Repair the ding with one cloth cut matching the ding, and one on top overlapping the edges by 1/2-1".

This sounds like a good idea to me.

3

There’s a good chance of a crease in the future. I’d put as many layers of cloth on that to make sure it flattens out after sanding. Of course dont forget to grind the hot coat before doing so. 

4

I get what u r saying. But wouldn’t that actually be the worst option of them all?
If the strength of the board is really weakened there, I might just
have to treat it as a crease, and lay a diamond cut cloth over it.
Otherwise if I put a lot of layers of cloth just over the ding I’ll
build up a pretty good and hard edge for the board to snap along.

5

I would do as .Mr. Mellor says. If that area is not reinforced, time and temperature will push the glass back to its original location and a delamination is likely at that point. Reinforcement=Good. Delamination=Not Good

6

John and tkelly have good advice.  But, If it were my board I’d leave it and surf it as long as the glass isn’t compromised.  All boards get pressure dings.  I wonder why though… Mike