Mirka Polarshine E3 Glass Polishing Compound PE3-1L is a glass polishing compound made for scratch removal and surface refinement on glass. This is a polishing compound designed for polishing scratched glass surfaces. Model Number: PE3-1L. If your job calls for a product that is purpose-built for glass instead of paint, metal, or general finishing, this is the right kind of material to start with.

The big story here is specialization. Mirka lists Polarshine E3 as a silicone-free compound that permanently polishes out scratches on most glass surfaces. That is important because glass correction is less forgiving than general polishing. You need a compound that cuts in a controlled way, stays consistent through the polishing cycle, and is matched to the surface you are actually working on.

The formula is rated at 3 microns, which puts this compound in fine polishing territory. In practical terms, that makes it a better fit for refinement and scratch removal work where surface clarity matters. Supplementary product data also identifies cerium oxide as the grit material, which makes sense for glass polishing applications where clarity and finish quality are the whole point.

Mirka packages this version in a 1 liter bottle, giving you a usable amount for repeated polishing work without stepping up to a larger shop container. For detailers, restoration shops, and users handling recurring glass correction jobs, that size is a good middle ground. It is enough product for real work while still being manageable on the bench or in the cart.

From a jobsite and shop-use standpoint, the silicone-free formula matters as much as the polishing action. Silicone contamination can cause problems in downstream finishing environments, so using a compound without it helps keep the process cleaner. If you are working in a setting where residue control matters, that is not a throwaway spec.

This Mirka compound is best suited for users who already know they need a dedicated glass polishing compound, not a one-bottle product for every surface in the shop. It makes the most sense for automotive glass correction, glass restoration, and other surface-polishing work where scratched glass needs to be improved with a purpose-made compound. If you are serious about glass polishing, using a glass-specific compound like this is the smarter move.

Mirka Polarshine E3 Glass Polishing Compound keeps glass work specialized

This is the kind of product you buy when you want a dedicated glass polishing compound instead of pretending a general polish will do the same job.

• Who it's for: Users doing glass correction, restoration, or polishing work where scratch removal and clarity actually matter.
• Why it stands out: It is built specifically for glass, uses a fine 3 micron formula, and keeps things silicone-free.
• Worth knowing: This is a 1 liter bottle of compound, not an all-in-one kit. Make sure the rest of your glass polishing setup matches the job.

• What is this product designed to polish? It is designed for polishing glass surfaces and for polishing out scratches on most glass surfaces.
• Is this compound silicone-free? Yes. Mirka identifies Polarshine E3 as a silicone-free glass polishing compound.
• What size bottle is PE3-1L? This version is the 1 liter bottle.
• What kind of polishing material does it use? Supplementary product data lists cerium oxide as the material used in the compound.