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FYI CUTTING LAMINATED AUTO GLASS
I got some good information from John McCain who works for Novus in Anacortes about cutting laminated auto glass.
You basicly have to scribe both sides of the glass with a glass cutter, then carefully break both sides along the scribe line. In the past, the glass shops would pour alcohol on the plastic center and light it on fire to seperate the plastic, but John said OSHA frowned on the proceedure due to the fact that alcohol flame is invisible.
If you need to radius the corners, John said you scribe the radius and make fan shaped scribes out to the edge and then break the small pieces off.
Once you have the radius close to shape you take a grinder and clean up the shape. This is where it gets tricky, because you need to add coolant (water) to the grinding process to keep the glass and plastic liner cool. Too much heat and the glass will delaminate.
Lastly you polish the edges so as to preclude stress cracks from developing. This is a critical step.
John said they can do flat laminated glass and have the water cooled grinder and polisher. They won't do curved glass however.
John gave me the name of a guy in Anacortes who cuts curved auto glass. I'll have to dig out his name...has escaped me at the moment. Will post when I find it..
Was watching the Science channel a few months back and noted that the scientific community doesn't consider glass to be a solid, but is rather a supercooled liquid.
McSkagit
I got some good information from John McCain who works for Novus in Anacortes about cutting laminated auto glass.
You basicly have to scribe both sides of the glass with a glass cutter, then carefully break both sides along the scribe line. In the past, the glass shops would pour alcohol on the plastic center and light it on fire to seperate the plastic, but John said OSHA frowned on the proceedure due to the fact that alcohol flame is invisible.
If you need to radius the corners, John said you scribe the radius and make fan shaped scribes out to the edge and then break the small pieces off.
Once you have the radius close to shape you take a grinder and clean up the shape. This is where it gets tricky, because you need to add coolant (water) to the grinding process to keep the glass and plastic liner cool. Too much heat and the glass will delaminate.
Lastly you polish the edges so as to preclude stress cracks from developing. This is a critical step.
John said they can do flat laminated glass and have the water cooled grinder and polisher. They won't do curved glass however.
John gave me the name of a guy in Anacortes who cuts curved auto glass. I'll have to dig out his name...has escaped me at the moment. Will post when I find it..
Was watching the Science channel a few months back and noted that the scientific community doesn't consider glass to be a solid, but is rather a supercooled liquid.
McSkagit
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