SailNet Community banner
  • SailNet is a forum community dedicated to Sailing enthusiasts. Come join the discussion about sailing, modifications, classifieds, troubleshooting, repairs, reviews, maintenance, and more!

Injecting epoxy

9.5K views 20 replies 15 participants last post by  SailNet Archive  
#1 ·
I've read several different threads here that recommend for various projects that epoxy be injected.

My questions is - injected with what? And where do you get said injector?

Thanks,

Matt
 
#4 ·
Yes West System sells them. Kind of a low budget hypodermic needle without the needle. I used it last weekend to fill a void in my deck around one of my chainplates. I actually used one of those drinking staws that bends on the end of the injector to fill the outer part of the void area first.

This was my first real epoxy work and it went very well THANKS to the advice from people in this forum.
 
#9 ·
McMaster Carr on the Web has a large selection of various sizes of syringes, including blunt needles, at reasonable prices, especially if you buy in modest quantities. In the northeast, if you order by early evening, they arrive the next day. If you are not familiar with McMaster, they are an industrial supply company that will sell to the public and have a huge selection of products.
 
#11 ·
Getting resin in moisture out of composite structure

Hi guy's
I have been resin infusing panels for the past few years and find that a couple of aspects in the vacuum process are of note
1 water boils at 1 atmosphere therefore if trying to rid your core deck, whatever of water prior to injecting resin this may be of help it of course requires a vacuum pump capable of this.
2 in areas that I have infused that have for some reason or other not received there full share or resin (or any ) I am able to drill holes strategically and suck the resin through. Best of course is to supply at lowest point and pull up to highest point.
3 syringes of various sizes are available from horse supply /grain food / vet outlets.
4 When you really want to get a whole bunch of thin bog or slurry into a cavity a zip look bag taped to an end nozzle (from a silicon tube for example )
the nozzle being punched carefully through the bags bottom and taped tight
Then ladle your thin bog or whatever into bag through top, seal as normal without any air then roll bag down towards nozzle works beaut and cheap
Cheers Steve Marshall
 
#13 ·
I am looking for a way to inject epoxy under pressure into a deck core. Everytime this is discussed syringes are mentioned. Is there a machine or other device that can inject the epoxy into the deck core under high pressure so it will fill every part of the void. I have drilled an exploratory below deck hole near a deck mounted block that has let some moisture into the deck over the years. The wet area radiates out about 12 inches from the block. It seems to me that injecting epoxy into the area under pressure is a better solution than cutting open the deck and replacing the core material although every discussion about this seems to recommend the deck mutilation approach. Would appreciate any thoughts about a more creative appoach to this.
 
#15 ·
System Three epoxies come in a caulk-gun type tube that will mix the resin and hardener as you pump it out...and that would give you considerably more pressure to inject the epoxy into the voids with... but I wouldn't call it high pressure. Dealing with epoxy under high pressure seems that it could cause far more problems than it solves.
 
#16 ·
The trouble with just injecting is that the water is still in there and will be spread further. I guess you could drill a series of holes around the perimeter and hope that the water would be largely forced out by the pressure of the injection. But then we are back to deck mutilation.
 
#18 ·
I've used a standard grease gun and screwed grease zircs into the area that I wanted to force a large amount of epoxy resin into. I had several large areas that needed to be impregnated with resin without tearing into the hull. We drilled and tapped holes, inserted zircs into several of the lower holes and forced the epoxy in with the grease gun until the epoxy came out of the upper holes. Then we would take the zirks out and quickly drive wooden dowels into the holes. It worked pretty well. The metal grease guns got pretty damn hot when the epoxy started going off. We bought cheap guns and threw them away each time. It wasn't worth the time spent to clean them out.

Sounds goofy but it worked.