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I’ve tried other systems with limited success. What kind of guarantee do I Have that GlassRenu actually works?

GlassRenu is unlike any other commercial system on the market anywhere in the world. GlassRenu repairs scratches and acid damage, removes fabrication debris and hard water stains from all types of glass faster, cleaner and at a lower cost per repair without distortion. We stand behind our products by offering the industry’s only Product Performance Guarantee if your GlassRenu System doesn’t perform as promised, we’ll buy it back within the first 30 days of ownership.

How deep of a scratch can GlassRenu remove?

GlassRenu has never received a report of a deep scratch our systems could not remove. Fairly deep scratches, .004″ – .010, are regularly removed with great no-distortion results and we are currently working with the American National Standards Institute (ANSI) to show GlassRenu Systems deliver no-distortion results at .010″, .015″ and .020″.

In addition to deep scratches, GlassRenu Systems have produced no-distortion results repairing graffiti with chipped glass fragments and glass dust throughout the damaged area. This type of deep damage can take more time to repair, and, as a result, users often bill their customers 50 percent of the glass replacement cost, overall savings that make the customer happy.

Does GlassRenu work on tempered glass?

Yes. The only difference between tempered and traditional glass is that it has been heat treated for strength and safety (it breaks into small pieces). GlassRenu is used extensively on tempered glass in storefronts, home windows and doors and the results are the same as with traditional glass clarity with no visible distortion.

Does GlassRenu work on mirrors?

Yes. A mirror is just a piece of flat glass with a reflective backing.

How does GlassRenu work on scratches from construction, like stucco damage?

After graffiti vandalism, stucco damage is one of the most common problems encountered by our users in the field. We have a user on the West coast that currently does lots of work for two national homebuilders. He reports homebuilders are ecstatic to spend a fraction of what they used to spend to replace damaged glass on a repair and very happy with GlassRenu’s no distortion results. The repairs are made onsite, without having to take the glass out. The user reports that he will typically repair 8-10 windows in one house per day and change a rate of $75.00 – $95.00 per window.

Can GlassRenu handle large jobs?

Yes. One example of a large job completed successfully in the field was a GlassRenu user whose company repaired approximately 2000 square feet of concrete damaged scratched glass in 4 weeks, with 4 men and 2 systems. The damaged glass was 13 ft high, laminated and tempered with scratches on both sides from concrete being wiped off. The replacement cost was estimated at $85,000.00. GlassRenu completed the repairs without distortion for $37,000.00, a savings of more than 44 percent.

I am getting light (deep) swirl marks when grinding, what am I doing wrong?

Often, during the first few repairs, new GlassRenu users report producing light concentric circles or swirl marks and don’t know what they are doing wrong. There are two possibilities:

  1. The surface of the RenuDisk is not completely flat against the glass during the grinding step. This will usually produce swirl marks that look like overlapping concentric arcs that have an opening on one side. The side of the disk that lifted off during grinding is the side of the circle with the open arc.
  2. The RenuDisk is being pressed against the glass with too much force. When this happens, the swirls are complete, overlapping circles. Easing up on the pressure applied to the disk should stop the swirls.

Ok, so now I know what I did to put the swirls in, how do I get them out?

A swirl is just a circular scratch. Treat it the same as you would any other scratch you are removing. Just remember you only want to grind the glass until the scratch is gone – no more, no less.

I just finished repairing some glass and when I look straight through the glass it is clear but as soon as I look through the repaired area at an angle I see a foggy shadow where I was grinding. What am I doing wrong?

Just as with swirls, there are two things that can cause or contribute to foggy shadows during the repair process:

  1. Not enough time was spent with the Pre-Polish disk and, as a result, all traces of grinding were not removed.
  2. The glass required additional polishing. So how long is long enough when polishing? That depends on the glass and the size of the repair, but with practice you will soon figure out what it will take to get the glass just right.

A good practice to ensure clear results is to take a dry erase marker and, on the opposite side of the glass, circle and grid-off the area you were grinding. Next work on only one area of the grid until the glass is clear from all angles. This will let you know how long you will need to polish each subsequent area and cut down on the starting and stopping.

How does the feathering technique work in the GlassRenu process?

Depending on the depth of the scratch(es), you need to begin by working the specific area of the damage. After 3-4 times over the scratch(es), you’ll want to take the work area out about an inch. After several more times over the expanded area, take it out another inch, and so forth until the original damage is completely gone.

Remember, the longer you’re on an area, the farther you’ll need to feather to insure a distortion-free result.

How long should my RenuDisks last?

The average disk used for grinding should last and can be reused for up to 15 sq. ft.. of repairs.

You should use a new pre-polish (grey) disk with each job.

How often should I clean the surface of the RenuDisk?

Your goal is to get to the bottom of the scratch during the grinding phase. The dust build-up on the disk will slow down this process. As the disk fills up with glass dust, the aggressiveness of the disk is reduced. Knock the dust off the disk using the back of your wire brush frequently during the grinding phase.

How long should I pre-polish before switching to a polish pad?

Your goal is to get to the bottom of the scratch during the grinding phase. The dust build-up on the disk will slow down this process. As the disk fills up with glass dust, the aggressiveness of the disk is reduced. Knock the dust off the disk using the back of your wire brush frequently during the grinding phase.

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  • Fixes All Types Of Surface Damage
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