How (not to) repair a snapped veneer - some lessons

Time I got around to posting something constructive on Sways.

A few weeks ago I was surfing some nice head high point waves that were dropping nice sections.  I popped over one section and free fell with the lip about 6-8ft.  Landed it but heard this loud “pop”.  Got off the wave and checked the board bottom - it was still fair, so I assumed the noise was leash hitting epoxy.  I later nociced cracks(buckles)  in both rails and a crease in the bamboo veneer right across the top deck, right where my knees landed.

Rode a last wave in (very carefully!) and set to repairing.

First, my shed.  Blue plastic paint sheets on the wall work OK.  I’ve since put deflectors on the wall lights so the light is not direct. 6 months on and I have not yet sorted racks. One day, one day. Failed veneer job on the workbench (see the deformed tail).  Recovery is a work in progress. (Microballoons/epoxy fill)

Reds Shed

 

 

Took pics of the crack, but they are too bad to post.  The board was still in one piece and seemed to be holding rocker, so I planned to wrap cloth around the rails and put a veneer patch on the deck.

I removed pads using a paint scraper, brute force and a craft knife.  I was able to recover them.  There was a bunch of glue (Selleys Quik Grip which sets like rock) left behind.  I scraped some off using a chisel.  Bad idea.  Gouged the deck.

Cleaned up the remains by soaking a cloth in kero and leaving it on the glue.  This softens the glue to a gum for easy removal. Sanded back.

Sanded back the crack and buckled glass.  Laid a few strips of 4oz in the depression and a piece about 18" long that wrapped around both rails with a 1" lap.

Cut a rectangle of bamboo veneer and sanded the edges until they were paper thin.

Laid the bamboo on the wetted out cloth.  Damn bamboo would not lay flat!  Corners kept lifting.  “Ahh”, I thought, “some of the lads on Sways use Kling Film instead of vac bagging.  That will save me all the trouble of getting the bag out.”

board in kling film

From the picture you can see what’s going wrong.  The wrinkles in Kling are gathering excess epoxy to create a nice textured surface.  What’s more, the Kling was not strong enough to pull the corners of the veneer down.

Next thing, weight the veneer to get it to stick down (thank goodness epoxy is slow enough to let me work through my mistakes!). 

Several weights and a few hours later (with the gas heater full blast in the shed because it’s a winter evening and 4 degrees C outside) and I have a result - a board with a slightly flattened rocker.  Dumn sh1t.  Why didn’t you use the rocker bed?

board after kling removed

The pic shows all the extra snading I gave myself.  Too much resin and texture from the Kling.  Lessons - get the vac bag out, use release and absorbent fabric to soak up excess resin.

Luckily I recently got myself a proper sander, so was able to end up with a decent result after a few sand throughs (use finer paper lazy bones!).

repair faired and ready for pads

I gave the deck a filler coat, but not too much, because the pads cover most of the repair, and gave the rails and lap a gloss coat (yet to be sanded back).

Got the board in the water and noticed the flattened rocker which manifested as a faint catch in the front 1/3 rails.  I guess I lost about 1/8 to 1/4" rocker because I weighted the board on a flat surface during the repair. Racks would have helped, but I should have used the rocker bed.

Went out and had fun and the board was still light and responsive. 

Took a tumble this weekend and snapped the nose (but the veneer held, so the board is still in 1 piece).  Massive bruise on my hip where I landed on the board - would definitely have broken a PUPE in two (but the bruise would not be so sore!).

When I’ve used plastic film over any kind of resin repair, I use bits of masking tape on all the edges to pull all the wrinkles out before they set.  Pull the plastic in all directions until its tight as a drum…Saves a lot of sanding.  Particularly a good trick with solar-rez ding repairs on surf trips…

Thanks mate.

I tried to get the wrinkles out but obviously was unsuccessful.

A long time ago I was taught to lay an extra layer of cloth and then strip it off carefully.  It takes excess resin away and leaves an easy sand surface.  I think peel ply and breather are a sophisticated update of this.

Thanks for the masking tape tip.