Drystar

[StarQuest]

Screenman,

I too use the same method as David M described during the winter months to avoid shocking the glass. During spring, summer and fall months, I'll just apply heat at impact point as you suggested. Gets really cold here during the winter(minus 5-20 Celsius) Maybe Barry can tell us what he does with drystar when working on shields this cold? Remember these are vehicles that you may not have in shop access to or no way to bring interior temps up by running heat or defrost. Many times, it's a stone cold, iced over 4"-6"snow covered shield.

[screenman]

Now whilst I am a bit of a fan of the drystar I would like to point out that the micro torch can in fact offer a very variable heat source. Just by moving the flame further away from the damage lowers the temperature at which it hits the glass. Changing the pattern of the flame also has an effect on the heat put out. I would say that they both have their place. One of the problems with the drystar is you cannot see the damage very well when you are using it, unlike the torch when you can at all times. As a tech that does a lot of long crack repairs niether of the 2 formentioned products can hold a light to compresses air, when drying out long cracks. That said I would not go without a drystar in my tool kit. For the price of a couple of repairs why not carry as many weapons as possible in the war against poor quality repairs.

[Dave M]

Not sure you answered my qestion about what resin you use. What is the difference between resin and polymer? When I asked what resin, I really should have said what brand? But it seems like you had your own chemist manufacturing it for you?

[splitpit]

Barry, I'm sure you are a knowledgeable guy who reaps the rewards of a patented invention. Who better than you could assist in knowledge of the use of the tool you designed? your advice in that area woud certainly serve as useful.

However, after reading the full extent of your posts in regard to how you do repairs, in particular, the time frame, I just can't bring myself to put much faith in what you have to say.

I may be mistaken but I find some of your statements to be a little far fetched. If I am wrong in my observations, I apologize. I'm not trying to offend you or disrespect you but the 5 minute repair issue really makes me question your words.

[screenman]

Starquest, we do not have to deal with temperatures like that. If we did I would use the heater inside the car to warm the whole screen and myelf. I would then use the same method as I always do. We do however have wet days in fact the last time I did a dry repair was August it has rained most days or night since. I think in real life I have got it easy, those temperatures would have kept me inside. I honestly did not ask my original question to annoy anyone it was a genuine request for the reason and the scientific thinking behind it.

[screenman]

I am also confused, man am I having a bad night. what is the difference between a polymer and the resins we use now. Surley a polymer is the cross linking of smaller molecules much the same as Magnibond is when cured with UV. Now I had a very poor education and left school at 15 so there is a very good chance I do not know what I am talikng about. So please educate me someone.

[splitpit]

I think it's in our best interest to accept his advice in regard to the specific use of the tool he designed and let everything else fall by the wayside.

[InventorOfDryStarPatent]

Originally Posted by SGT

There has been quite a bit of debate over knowing how a resin performs lately. If you had your own chemist you must be very concerned about the resin performace. What do you mean when you say you never used a resin? Could you explain the difference and why you selected it.

Back in the late 70;s-early 80's they where resins, novus used them.
Today, most if not all are polymers, but it seems some suppliers still call them resins.
What had me wondering was the fact that a drop of water can and did enter a break in a nano second without any pressure, ie. via (capillary action)
then why cant a repair chemical enter the same way?
Then ad pressure to boot
Todays polymers do just that, mostly do to the surfactants.

resins where old dated technologys.
polymers are new tech.
what the technical differences are ? I do not know.
I do know I filled in a break in minutes, a little longer on cold days.
Polymers keep evolving.
I did not want to spend 30 minutes or more fixing one chip.

[splitpit]

Today's resins are liquid polymers. I'm not sure you are as knowledgeable in this area as Brent. I'm hoping that he can stop in and post his opinion in regard to your repair tecniques and resin/polymers.

[splitpit]

RESIN - Any of numerous physically similiar polymerized synthetics or chemically modified natural resins including thermoplastic materials such as polyvinyl, polystyrene, and polyethylene and thermosetting materials such as polyesters, epoxies, and silicones that are used with fillers, stabilizers, pigments and other components to form plastics.