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Author Topic:   resin pump
Cutty posted 06-07-2003 03:27 PM ET (US)   Profile for Cutty   Send Email to Cutty  
After reading the maintenance topics on, they say to use polyester resin with a pump gun to repair delamination. Help me here guys. Where do I get one of these so called pump guns? I checked West marine online but could'nt find one.
OutrageMan posted 06-07-2003 08:38 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
If you mean the pumps that offer pre-set amounts of resin and hardener, then you should be able to find them anywhere that sells West System Epoxy.

If you are talking about a device to pump the mixed epoxy into the delaminated area, then again, West makes empty tubes that are you fill with the mixed eopxy and used in a caulk gun. You can also use a syringe.

I used the caulk tube type when filleting the joints on the john boat I made a few years ago, and it worked great with one caveat. The epoxy in the tube kicks very fast. I even had one tube start to smoke on me.


jimh posted 06-08-2003 10:40 AM ET (US)     Profile for jimh  Send Email to jimh     
I would contact Chuck Bennett at Boston Whaler to get a clarification on what is meant by a "pump gun."
Cutty posted 06-08-2003 08:22 PM ET (US)     Profile for Cutty  Send Email to Cutty     
Thank you, I will check this out and hopefully get going on this soon. I first have some drying to do near the transom.
mgwhaler posted 06-11-2003 09:50 PM ET (US)     Profile for mgwhaler  Send Email to mgwhaler     
I don't do much carpentry- so the squeeze bottle (with a nice cone tip) of replacement chaulk for my chaulk line was quickly dumped into a zip lock bag so I could use the squeeze bottle.
It worked Great. I snipped the tip to make a hole the size of maybe a bee bee or a tad bigger ( start small and experiment) and then mixed up one quarter inch fibers with one 32nd inch milled fibers and resin and of course hardener and squirted the stuff into a bunch of half inch holes I bored out of the top of my rail ( as I had tunneled out the face of the rail after pulling off the rub rail upon finding soft rotting spots.)
Sometimes the quarter inch fibers got stuck a bit but I did not trim the tube back because I wanted some decent psi when I sqeezed. This let me fill the area I had gouged out behind my rub rail with out worrying about it all spilling out.
I then used my shop vac in reverse from far away to blow down on the holes and move the resin deep into the uneven gouges of foam I had created. Of course by now the area was closed over with heavy masking tape and when resin sputtered from any of the holes down the line- I knew I had done enough and did not try to get closer. ( I held the shop vac 2 feet away for starters).
I will be looking for more squirt bottles soon- they were great!
The one I had held maybe a cup and a half of resin which was good for small voids.
It was sunday and the marinas were closed- so it worked for me.
triblet posted 06-11-2003 10:21 PM ET (US)     Profile for triblet  Send Email to triblet     
Mgwhaler, try the empty caulk tube. It's
much easier to sqeeze on the gun. You can
also get them at TAP Plastics.


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