What do you do when filled the chip, and then....

[Nomad]

You shouldn't have a problem with a metal injector or a plastic one that UV can't penetrate. The UV will not bounce back and cure the resin at the tip of the injector. UV will not penetrate from the inside either. If resin is on the outside of the injector or anywhere near where UV can get to it, it will cure. So if resin has gotten into or on the mechanism at the top of the injector you might have a problem. You could always cover it with a small piece of cloth or something.

As glasstars says, do not use a lot of pressure. On bulls eyes the center can be pushed down into the laminate a bit and cause some distortion if a lot of pressure is used. I might use this method on a chip like you described above, it might not be something you want to use all the time but it is another "trick" that very well could be useful.

[SGT]

Personally I do not cure under pressure but I am curious if it is just a system "a" method just being different from system "b" and "c" methods. Or if there is a statiscical reason such as more crack out potential or less crack out potential from curing under pressure?

[GlassStarz]

Example I did a Big Bull on a Semi with verticle glass today when you remove the injector a bull with a big outside break some of the resin will flow out no matter how quick you apply the tab with pressure cure you expose the injector leave it under pressure chip cures then remove the injector apply pit filler and tab cure as usual chip is completly filled no air or daisy from to much pressure.

[robert n]

I am understand the theory of pressure curing with the injector on and have no fear of a crack out. My concern is the possible damage to the injector. I use a Delta Kits system and feel the injector is one of the most important parts of the system (bridge, injector and plunger). I would hate to have the injector damaged by cured resin inside or the hassles of trying to clean out cured resin.

[GlassStarz]

Thats why some MFGs tell you not to pressure cure with thier gear Delta is one. You have to do what you can with the gear you have each company has thier ups and downs the inability to pressure cure just makes one type of break harder but the same equip makes other types easier

[SGT]

I am understand the theory of pressure curing with the injector on and have no fear of a crack out. My concern is the possible damage to the injector. I use a Delta Kits system and feel the injector is one of the most important parts of the system (bridge, injector and plunger). I would hate to have the injector damaged by cured resin inside or the hassles of trying to clean out cured resin.

I can tell you that I have tried curing under pressure in the past and it works fine. I did not have an issue with damage to the injector. The resin will start to cure around the tip seal but no damage. My experiences were that there really is not a significant difference between the two methods ability to fill a break with a Delta Kits system when repairing realistic breaks. I really do not get involved with damage outside of ROLAGS. I can not speak to the capabilities of other systems but with a Delta Kits system when the bridge and injector are set up properly(level and minimal injector pressure) you do not have to worry about excessive resin seepage once removed. I would suggest you always follow the MFG's recommended procedures.

My concern is when pressure curing is you have a downward force on the glass from your injector accompanied by a hydraulic force on the resin. The glass is not in a relaxed static state so the cure happens in a stressed state. Is that a factor or is it not an issue with crackouts or failing repairs?

[usmc68]

Brett,
Very good thread here. Korey has helped me since I started using Delta. Your info on pressure and vacuum is outstanding. More pressure means more vacuum, pull vac slowly.
Please put up a utube on setting up the tool, and vac and pressure.

[Kgobin]

USMC68,

I hope you are staying cool in Hotlanta. I have created a video per your request and created a new thread for it How to setup the bridge assembly

[GlassStarz]

I dont do my Pressure cure at high pressure just enough that the chip is full then expose it I didnt do well in science( had to spell check the word lol) but I also wonder what affect high pressure would have so I pass on it. I like the result but understand why others may choose not to use it.

[WW973]

it could also be that after he does a pit fill when he goes to pit his uv light on the windshield he is pushing down to hard and flexing the glass and drawing air into the break