air seeping in?

[stihlcarven]

OK, I have just come back in from repairing 3 rock chips on my own car. Not quite the result I was hoping for so I'm going to as some more questions to see if I'm leaving out a step or what. It's been a lil while for me but I have repaired thousands of rock chips. I am getting the desired result when pressuring for 5 min then vacuum for a couple...then off n on back n forth until the air is worked out....when I am happy with the process I then back the main screw up on the tool and pivot it out of my way while I put a drop of pit resin and a curing tab...air is entering the damage in between moving my tool and the curing tab...I dont remember having this problem before.It leaves just a hint of black very thin near the damage hole...while I feel the repair is solid this is still unexceptable to me.I want my customers to be blown away...not just mildly impressed and maybe slightly dissapointed.Could it be the temperature? it is cold here.

[just chippen away]

It is not air seeping in. You are working with two resins with to different curing times. The resin you are using to do the repair is a thinner slower curing resin than the pit resin which is thicker and faster curing.
I choose to pre cure my resin first then apply the pit resin. This will eliminate the air bubble trapped in your work...

Something from an "old timer"

[bill lambeth]

You can also take a stick pin and pop the bubble if needed.I have had to do that some.

[Brent Deines]

I disagree with just chippen away. I use the pit resin right after the fill resin all the time and don't have that problem. Just chippen away's method is fine, but curing twice is unnecessary and adds time to your repair as I suspect you already know since you have done successful repairs in the past. I also don't think it is a temperature issue, but that is one of many possibilities.

Give me a call and let's see if we can figure out what is going on. I have a few ideas but it's far less time consuming for both of us to have a telephone discussion about the issue. If I can help you resolve the problem you can post your results if you choose, or if I cannot help you resolve the problem you can report that as well and ask for advice from others. First however, give us a chance to make sure you are using the tool as it was designed to be used. I suspect the problem has something to do with using a tool that you are not familiar with. That's not uncommon when switching brands and learning new techniques.

[stihlcarven]

Howdy Brent, I was wanting to call you guys but I felt that I should try to get it figured out on my own because I didn't get my kit from you guys. You fellas have a great reputation for support, but I don't feel like I've put anything into it to have a right to ask for help....I will say that the tools seem well made...the theory behind the design is sound and it seems to inject resin and vacuum out the air....so my blunder today was all me...I wanna make it clear to people who read this....I am accustomed to using quality tools....in fact I have never had the displeasure to use a tool that I felt was sub-standard. When I got my DELTA kit and opened it up and began to take inventory and get a feel for what I bought, I didn't feel like I was stepping down. The tools themselves adhered to the window extremely well, the adjustable bridge worked well and was actually an improvement over the system I last used where every cup got greased and moved around to fit the repair that way. The foam fitted interior of my kit makes me stay organized and for a messy tech like me it is a big help. The drill is an actual "dremmel"..enuff said on that....my mistakes made today are just that, my mistakes....after evaluating myself I think I may have been rushing the process of pressure and vacuum...anyway, I am happy with the system....so anyone reading this who is trying to figure out which kit to buy, and maybe you have one shot at getting the right system?? This kit seems as good as I am accustomed to, I researched all of em...there is no way to know if you made the right choice until you get it to your house and see....I was afraid to buy something and then realize to late that it is junk....we are trying to be professionals....professional equipment is what I got.

[Brent Deines]

We support our products whether you buy them from us or not, so never hesitate to give us a call. The lifetime technical support and lifetime warranty on the injector and bridge is still valid should you ever have a problem.

I just want to make sure you get off on the right foot and feel that since we developed the system and have more experience training people to use it than anyone else, we have a pretty good chance of being able to help you out. I don't know that you made any mistakes, but there are a few tips that we can give you to make sure you get optimal performance from your Delta Kits windshield repair system. We work with newbies and old pros who are switching systems every day.

[David T]

stihlcarven,
You did not mention what kind of equipment you are using (Delta or another brand?). This does make a difference since each manufacturer's equipment requires somewhat different methods when doing a repair.
I use Delta equipment and once made the mistake of removing the bridge while the injector was still in the vacuum cycle. This made a big difference in the visual quality of the repair. Might it be possible this was done on the repair you made?
When it comes to applying pit resin, Brent provided a simple but valuable piece of advice for avoiding bubbles getting trapped in the resin. If the bottom edge of the curing tab is placed below the repaired area (while the upper portion of the tab is held away from the WS), and a drop of pit resin is placed slightly below the repair, gently "curve" the tab upward. Doing this will force the resin upwards (covering the repaired area) and it nearly eliminates any bubbles from getting trapped in the resin.
Take advantage of the experience that Brent and Korey have, with their support, you should be able to resolve nearly any repair problem you may encounter.
Hope this helps.

[Ricersux]

I've encountered your problem and once in while I still do. I have found that going thru the pressure/vacuum cycles a couple extra times AFTER all the air is removed. Some breaks fill immediately and others have taken me 45 minutes to completely fill. Korey help me by determining I wasn't following process timing correctly.

5 minutes pressure
30 seconds vacuum
2 to 3 minutes pressure
30 seconds vacuum
2 to 3 minutes pressure

That is the basic process and I continue going back and forth until all the air is gone. There is no magic number as to how many times you will need to go back and forth for every repair.