Is it normal to always have an air bubble in epoxy syringes? I've been using D2 for a couple weeks now and every time I pull epoxy into the syringes there is always an air bubble. I also make sure push all the air out prior to extracting epoxy and I even hold the epoxy bottle upside down during extraction.

Pull slower. If it does nut work ,pull more than you need, allow the bubble to rise to the tip of the syringe push back into the bottle, wait 30 seconds, and pull again. Bottle up of course.

kingofbeasts custom rods

IT is normal, but it's not every single syringe. I have 4 bottles of finish with the same sets of syringes for several years. There is only one that no matter what pulls a bubble. I pull past where I need, then push the bubble out. If you push super slow, the pressure forces the bubble out quicker.

I draw up finish - there will be bubbles - push out the finish and bubbles - draw-up finish from an area of the bottle that is bubble free.
Herb

Chris,
If you are getting bubbles, no matter what you try, toss the syringes and get new ones.

As Herb sated, "Pull the syringe full up and full down several times to clear the syringe. Then, pull up a full load of finish and expel it back. This will both clear the syringe and also insure that the inside of the syringe is uniformly coated with fresh finish.

Then, pull up a load of finish and depress the plunger a bit to rid the syringe of any air and push the bubble free finish into your mixing cup or foil.

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I just ordered a batch of syringes to take care of replacing the syringes from time to time I think that I paid about 20 cents per syringe.

The other thing that I do, is to leave the bottles alone and leave them vertical. I take a clean piece of perfect fitting blank material about the length of which - is the same height of the bottle, plus an inch or so.

That way, I don't put any holes in caps, and I don't move the bottles and I always keep the syringes upright.

I have used this technique for years and have had 0 issues with the system.

Good luck

Thanks for all the help. I'm going to try it out tonight.

Insert the syringe, turn the bottle upside down and allow bubbles to rise in bottle, there's always a little air trapped at the very end of the syringe. Draw some finish (very little ) and slowly expel it back up into the bottle, a few more bubbles will now rise and you should be good to go. If you're using D-2 be careful, it sometimes can leak back between the bottle inserts an the syringe tip if too much pressure is applied too quickly.

Chris, I forgot you may not have inserts in your bottles. Get some.

When you turn the bottle over do it slowly so the cap gets full with no bubbles near the tip of syringe some times a bubble will get trapped in the cap, also if you are loading a large syringe you will create a vacuum,
an bubbles come in around the stopper . take an play with it an see where the bubble comes from ,

William Sidney
AK

I used to agonize over this very problem (bubbles in the finish in syringes). Like others who have already responded, my method is to draw up a small amount of finish until I see a bubble. Then I expel that finish back into the bottle, and re-insert the syringe into the most bubble-free area that I can find in the bottle, making sure that the tip of my syringe is well-submerged before drawing up more finish. This method results in a bubble-free draw about 3 out of 5 attempts. It also helps, I think, to rotate the plunger of the syringe back and forth slightly as you're drawing it upward.

After years of doing the above--sometimes successfully, sometimes less so--I've come to the conclusion that, if you mix at least a 3-cc batch of finish for each application, a small bubble here or there doesn't make a difference. After all, that's one of the reasons that manufacturers recommend mixing up at least 3 cc every time: doing so lessens the impact of small imperfections or mistakes in measuring (such as air bubbles) on the mixed batch of finish.