How do YOU repair a bullseye

[magicogar]

Here's an update.

I worked on the bullseye until there's no air in it. The thing didn't fill completely after leaving the injector on there for about 8 min so I applied a little pressure to the injector to help with the flow. This helped filled the bullseye nicely. I did a few vucuum/pressure to get rid of all the tiny bubbles.

While still in the pressure cycle, I then slowly unscrew the ez-plunger out of the injector so their is only very little pressure, enough so that the resin remains in the bullseye. Cured the thing under pressure and the halo still appeared. It looks a little better though.

My question now is when I applied a little pressure to the injector to help the flow, did this cause the halo? Also I'm using a flashlight to view the repairs indoors and was wondering if the flashlight's giving false views on these bullseyes.

[desertstars]

Thanks for the detailed step by step, Magicogar.

That practice should be de rigueur in all cases where questioning the reason for a failed repair is the topic.

I think I agree about the heat and cooling the w/s back down before re-applying pressure. The laminate is probably still warmer than ambient and supple because of that.

[magicogar]

Thanks for all the help!!!

I finally solved my problem!!

It was late yesterday so I tried fixing my last bullseye. What I did was after I placed my injector on the bullseye and put it on pressure cycle, I did not force down the ez-plunger to reduce the pressure cycle. I always do this in the past. I watched and the stubborn bullseye did not fill even when I applied some pressure on the edges using my scribe. I did a few pressure and vac cycle and applied pressure on the back of the glass for about 20 seconds and that helped filled the entire bullseye.

I then cured it under pressure for about 1 min (was 4 min. in the past). After that, I slid the injector off careful to check if the resin stays in the bullseye. When all looks good, I removed the injector, add the pit resin, placed on the film and cured it for 5 min.

The bullseye now has no halo whatsoever. I mean if it weren't for the pit area, there's no way of finding the bullseye.

Hope this'll help somebody having trouble with the halo, daisy effect.

[gold star wsr]

Magicor,
re: starting with vacuum first. It is possible with the equipment I use, and I assumed it could be done with most. With the GT manual injector, I just unscrew the plunger, push it all the way down, then tighten it again. After that, I pull the plunger up ... vacuum accomplished. With the VP-5000, I put it on vacuum. I am not familiar with the Delta equipment, so I cannot advise you if, or how it might be done.

I am glad you have had some success in eliminating the halo from your bullseye repairs, so perhaps you have solved the problem already.