How long will it take to receive my order?
All products are made to order. Typically orders are shipped within 5 working days. However, it can take up to two weeks to manufacture the product. Once your order is ready, it will be shipped out using the shipping method you requested upon checkout.
Is it best to use Polysand™ wet, or dry?
It is always best to use a lubricant, water is the most recommended. Lightly spraying or misting the surface will extend the life of the Polysand™ greatly and keep the material from loading. Lubrication will also keep heat generation to a minimum.
Can I use Polysand™ to remove scratches on glasses?
No, Polysand™ should not be used to remove scratches from any eyeglasses, including sunglasses. It will damage the lenses, as well as remove any coating. It can however be used on non-prescription safety glasses.
Can I use Polysand™ to remove scratches on my cars windshield?
No. The molecular structure of glass will not allow for a clean polish and the optical clarity necessary for a windshield.
Why is it important to continually inspect your work as you go?
If you are using a lubricant, like water, a slurry will result on the surface. After each step, flush the sanded area clean with water, dry with surface, and visually inspect under good lighting to ensure you have the desired result. If not, redo the step. If the scratch persists and you have been diligent in your work, you may need a coarser grade of Polysand™.
Why do I sometimes see chatter marks on my finished piece? (Metal Finishing)
Chatter marks are caused by too much or too low belt tension. Adjust the tension to a point where the belt runs smoothly.
Why do I sometimes see swirl marks, even after sanding with 12000 grit? (Solid Surface Finishing)
This could be due to scratches not buffed out in the previous steps. Make sure to continually inspect your work after each grit. Also be sure to completely wipe down the surface between each grit. This ensures that none of the abraded material is sanded back into the finish.
Why is it important not to use products containing solvents? (Aircraft Transparencies)
Acrylics, polycarbonates, and plastics are all porous materials. Solvents containing petroleum distillates, wax, ammonia, or alcohol are not recommended as they will break down, deteriorate, discolor, and haze transparencies.
Can I restore just the damaged part of the window? (Aircraft Transparencies)
Generally, no. Restoring just the damaged area will result in distortion of the area. It is best to refinish the entire surface of the transparency. However, if the spot is not within the pilot’s line of vision, it is the decision of the customer.
What is the grit to micron conversion?
| Grit | Compound | Micron |
| 1000 | Silicon Carbide | 40-42 |
| 1500 | Aluminum Oxide | 30 |
| 1800 | Aluminum Oxide | 15 |
| 2400 | Aluminum Oxide | 10-13 |
| 3200 | Aluminum Oxide | 9 |
| 3600 | Aluminum Oxide | 8 |
| 4000 | Aluminum Oxide | 5 |
| 6000 | Aluminum Oxide | 4 |
| 8000 | Aluminum Oxide | 3 |
| 12000 | Aluminum Oxide | Less than 1 |
