Dust in pinholes

General Discussion
1

I  tried to search the archives but could not find the answer to my question.  I have finished laminating (and glassing on the fins) with kwik kick epoxy.  Where I sanded the laps there is dust in the pinholes.  I found a bunch of threads in the archives regarding dust in pinholes after the sand coat but not after the lam.  I tried using the shop vac to suck the dust out but to no avail.  I don’t want to hotcoat until I get the dust out.  The board (the “Sinker”) is fairly dark colored and the white pinholes will look like crap.  In the other threads, regarding dust in pinholes in the sand coat, Greg Leohr suggests using baby oil, but before the hot coat sounds like a no go.  

 

Any suggestions / solutions???

2

Give it a good blow job.   (80/100 psi)

3

Thanks Bill.  How many psi can a 160 pound man blow?  Because that’s all I got.  No compressor.

4

Shop vac. again but with the small circular bristle brush that always comes shipped with them…

Vac out the dust in the holes while vigorously rubbing the fine ends of the bristles over the pin holes…

Try that first… But as you have no compressor, you might have to wash out the dust with 100% isopropyl alcohol or at worst acetone using an old toothbrush…

You can also wash the board with Dawn soap as a last resort, some guys swear by it… Never done it though…

5

That was fricken funny, Bill, and a hillarious response illibel.  Tears running down my cheeks funny.  Mike

6

You guys are crackin’ me up =)

 

Hey Jeff, if they are only the dust from the resin, they will dissappear when the next resin hits them.

At least that’s been my experience…

 

Can you attach a hose to the other end of your shop vac or vac pump and blow them out?

7

before I got my compressor, I used a toothbrush and high power nozzle on the hose…Worked ok, not as good as compressed air.

8

Before I got a compressor I used those cans of air they sell for blowing out computer keyboards, worked pretty good.

9

All methods of vacuuming did not work.  Can I use Additive F to wipe it down?

10

try just using a roller or a stiff brush and work the epoxy into the area then coat it as you normally would

11

Time to buy some kind of an air compressor.  If you are gonna build boards;  an air compressor is an invaluable tool.  In the interim try a can of compressed air as mentioned above.