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Curing under pressure

Posted: April 5th, 2019, 7:09 am
by jdn
I see online there’s alot of people curing under pressure. They put the curing light right up against the injector. My question is what keeps the resin from curing at the injector tip or in the injector.

Re: Curing under pressure

Posted: April 5th, 2019, 1:46 pm
by kennycrane
It apparently does not get the amount of uv rays that it needs to set up. I'm sure that if you left it long enough that it would set up, but while curing under pressure I will try and leave the light on it 2-3 minutes. Never had I had trouble with it harming my Delta tools.

Re: Curing under pressure

Posted: July 6th, 2019, 5:39 am
by johnnyone
Why would you cure under pressure? This must be a new procedure?

Re: Curing under pressure

Posted: July 7th, 2019, 5:42 am
by ghost rider
johnnyone wrote:
July 6th, 2019, 5:39 am
Why would you cure under pressure? This must be a new procedure?
Curing under pressure is not new. Some people cure under pressure because they can't or don't know how to remove all of the air and/or moisture from the damage. Pressure from the resin will force the damage to look filled by compressing it. I don't normally cure under pressure but i will admit I have done it a couple of times when I absolutely couldn't get whatever was in the damage to come out. Some UV has to get into the injector, I would recommend cleaning or changing injectors after curing under pressure.

Re: Curing under pressure

Posted: July 9th, 2019, 10:38 am
by kennycrane
I don't know how many repairs that I have done but it is a bunch. Sometimes Its not that I don't know how to get the air out or the moisture, there are simply some breaks that you cannot get all of the air out so the only option is to cure under pressure (in my opinion). Its not cheating, it is not doing something wrong. It is simply making sure that the repair is repaired in the Best way possible.

Re: Curing under pressure

Posted: August 8th, 2019, 8:45 am
by Glass Patch
Greetings
Curing under pressure was not common in the 1980's but not unheard of. When I was a Glass Saver, it was not a part of our practice but some of us did. Until I won a glasweld kit in a competition. I didn't have a UV light but found it useful and did some problem repairs under pressure. But I would work it back and forth and heat often before I used the UV under pressure.

Re: Curing under pressure

Posted: August 10th, 2019, 4:11 am
by Dave M
I've been "curing" under pressure for 26 years. I have the light on two sides of injector for 30 seconds each, remove injector and do a full 5 minute cure. For me while under pressure the resin is forced to the end of cracks, what happens when you remove your injector? If all the air has been removed by the final pressure stage, what harm is curing under pressure doing?