M
Mike Phillips
Guest
Glass polishing - How to remove scratches in glass
In the picture below you will see the pads, products and tools you need to remove scratches from glass.
Glass is very hard and in order to abrade it in a way to remove scratches without at the same time instilling scratches you need a polish specifically made for glass that contain
Cerium Oxide
Step-by-Step How to remove scratches in glass
IMPORTANT
Never start by working on the glass in front of the driver field of view. Just in case something goes wrong you don't want to impair the view of the driver.
Step 1: Wash and dry or wipe glass clean.
Step 2: Tape-off and cover any perimeter window gaskets, wiper arm assemblies, surrounding plastic or trim. Anything you do not want to stain with polish splatter.
Step 3: Apply some CarPro Ceriglass glass polish directly onto the face of a CarPro Rayon glass polishing pad.
Step 4: Place the face of the glass polishing pad against the glass and then using a slow speed setting, turn the polisher on and spread the polish out to small area. When buffing out a car windshield, divide the windshield into quarters and work one quarter at a time.
Step 5: After you have spread the product out at a low speed setting, turn the speed up to a fast speed setting on a dual action polisher like the Porter Cable 7424XP or a low to medium speed setting on a rotary buffer.
Step 6: Make SLOW overlapping passes with firm pressure. Have a spray bottle of water on hand to re-wet the abrasives as the polish will tend to dry out as you work it. You can get more buffing time from the abrasives by re-wetting them with water.
Buff till you have removed the scratches to your expectations then repeat to a new section till the entire window is free from scratches.
Glass polishing can be very messy because the polish will tend to splatter. You can reduce the amount of splatter by using a water sprayer that does a good job of atomizing the water into a fine mist versus an generic spray bottle that squirts water.
Order List
Griots Garage 6 Inch Random Orbital Polisher
5" Dual-Action Hook & Loop Flexible Backing Plate
Griots Garage 3 inch HD Backing Plate
3 Inch Dual Action Flexible Backing Plate
FLEX PE14-2-150 Rotary Polisher
5" Flex-Foam HD Rotary Backing Plate
3" Flex-Foam HD Rotary Backing Plate
5" CarPro Rayon Glass Polishing Pad - 2 Pack
3" CarPro Rayon Glass Polishing Pad - 2 Pack
CarPro Ceriglass Glass Polish - 150 ml
CarPro Ceriglass Glass Polish - 500 ml
My comment....
You can remove scratches out of glass using either a rotary buffer or a dual action polisher like the Porter Cable type. With the dual action polisher it will take a little longer but in my opinion the glass polishing process is easier on you when using a dual action polisher versus using a rotary buffer.
Slow process
Figure on taking 2-3 hours to machine polish and remove the scratches out of the average size windshield. Longer if you're new to this type of polishing.

In the picture below you will see the pads, products and tools you need to remove scratches from glass.
Glass is very hard and in order to abrade it in a way to remove scratches without at the same time instilling scratches you need a polish specifically made for glass that contain
Cerium Oxide

Step-by-Step How to remove scratches in glass
IMPORTANT
Never start by working on the glass in front of the driver field of view. Just in case something goes wrong you don't want to impair the view of the driver.
Step 1: Wash and dry or wipe glass clean.
Step 2: Tape-off and cover any perimeter window gaskets, wiper arm assemblies, surrounding plastic or trim. Anything you do not want to stain with polish splatter.
Step 3: Apply some CarPro Ceriglass glass polish directly onto the face of a CarPro Rayon glass polishing pad.
Step 4: Place the face of the glass polishing pad against the glass and then using a slow speed setting, turn the polisher on and spread the polish out to small area. When buffing out a car windshield, divide the windshield into quarters and work one quarter at a time.
Step 5: After you have spread the product out at a low speed setting, turn the speed up to a fast speed setting on a dual action polisher like the Porter Cable 7424XP or a low to medium speed setting on a rotary buffer.
Step 6: Make SLOW overlapping passes with firm pressure. Have a spray bottle of water on hand to re-wet the abrasives as the polish will tend to dry out as you work it. You can get more buffing time from the abrasives by re-wetting them with water.
Buff till you have removed the scratches to your expectations then repeat to a new section till the entire window is free from scratches.
Glass polishing can be very messy because the polish will tend to splatter. You can reduce the amount of splatter by using a water sprayer that does a good job of atomizing the water into a fine mist versus an generic spray bottle that squirts water.
Order List
Griots Garage 6 Inch Random Orbital Polisher
5" Dual-Action Hook & Loop Flexible Backing Plate
Griots Garage 3 inch HD Backing Plate
3 Inch Dual Action Flexible Backing Plate
FLEX PE14-2-150 Rotary Polisher
5" Flex-Foam HD Rotary Backing Plate
3" Flex-Foam HD Rotary Backing Plate
5" CarPro Rayon Glass Polishing Pad - 2 Pack
3" CarPro Rayon Glass Polishing Pad - 2 Pack
CarPro Ceriglass Glass Polish - 150 ml
CarPro Ceriglass Glass Polish - 500 ml
My comment....
You can remove scratches out of glass using either a rotary buffer or a dual action polisher like the Porter Cable type. With the dual action polisher it will take a little longer but in my opinion the glass polishing process is easier on you when using a dual action polisher versus using a rotary buffer.
Slow process
Figure on taking 2-3 hours to machine polish and remove the scratches out of the average size windshield. Longer if you're new to this type of polishing.
