The importance of drying out

[rottdawg]

Does the Delta Kit include a drying system or is that an add on piece?
Thanks

[Mike Allen]

DKI sells a moisture evaporator , www.deltakits.com/dki-catalog/ds100.html, either by itself or it comes with the Entrepreneur Add on kits. I did not see that it comes with any start-up kit.

I have the EZK-121, which is the top kit, and I didn't have one with it if I recall correctly.

[Delta Kits]

Originally Posted by Mike Allen

DKI sells a moisture evaporator , www.deltakits.com/dki-catalog/ds100.html, either by itself or it comes with the Entrepreneur Add on kits. I did not see that it comes with any start-up kit.

I have the EZK-121, which is the top kit, and I didn't have one with it if I recall correctly.

That's correct, it's sold either separately or along with Entrepreneur Supplemental Packages.

[tooldini]

I am having trouble telling if moisture is in the damage or not. If there is moisture in the damage will the dark spot lighten up when the damage is flexed? I just haven't been concerned about moisture till lately. I have never flexed the damage and seen water slosh around inside or sqwush around. Also most of my jobs seemed to be fresh chips that had not gotten rained on yet.

thanks
Jeff

[Dave M]

Jeff,
Let's say you have a bulls-eye to repair. Apply gentle pressure on the dark area around the impact point, using your probe. Usually if moisture is present a small portion of the dark area will "lighten up" or disappear. I have yet to see water actually run out of a break. Now, use your method to evaporate that water.
Star breaks are a different matter since there is not much black area to actually see. Sometimes the legs will not be visible all the way to the ends or not come in contact with the impact point or just look "speckly". Is that a word? Drying out a star break is also very tricky.

[Mike Allen]

I'll work on getting a video of what moisture looks like in a break. I should have some time saturday.

[tooldini]

Thanks Mike but doesn't air make it look black also? I may have done some with water that I didn't dry out properly Most I was pretty confident that they had not been exposed to water for quit a while or ever but I am getting more jobs so I just wanna make sure. I don't wanna waste time drying out something that doesn't need to be dried out. I feel kinda stupid since I have been doing repairs for almost 4 years and never really had an issue with moisture because I did so few repairs LOL I have seen several repairs from years ago and they still look great. Hopefully with yours guys help I can totally understand what to look for.

Thanks
Jeff

[tooldini]

Sorry I meant thanks Dave but thanks to mike if he gets that video it may help.

Jeff

[screenman]

If in doubt dry it out. Water has much the same refraction index as glass that is what makes it hard for most of you to see. it is certainly the case that the inside of the chip will contain a mixture of glass and air, therefore showing black does not mean the chip is dry. When we have a water based resin then we may not need to dry out. Make a chip in you practise glass, which every tech should have, and drip some water in it and watch.