12in x 18in Floor Sanding Screen Sheets, 120 Grit - Durable 10 Pack

In this review of Mercer Industries 12in x 18in floor sanding screen sheets (120 grit) the bottom line is straightforward: these precut screens are best for contractors and DIYers who need a durable, reusable abrasive for refinishing hardwood or preparing concrete. The reviewer found the main reason to buy is the sharp silicon carbide grain bonded to a mesh cloth that balances aggressive cutting with long life, making it easy to remove old finish, scuff between coats, or refresh worn areas without constantly replacing paper discs.

Key Features

• Precut fit: Ten 12in x 18in screens fit square buff machines and common brands so setup is fast and consistent.
• Sharp silicon carbide grain: The abrasive cuts old finish and wax effectively while maintaining usable life across multiple jobs.
• Mesh cloth construction: The open mesh resists clogging and sheds dust better than solid-backed sheets for longer cutting performance.
• Washable and reusable: Screens can be rinsed and reused, reducing cost per job compared with single-use discs.
• Versatile grit range: Available from 60 to 180 so users can select coarser or finer sheets for heavy removal or final surface prep.
• Durable resins: High quality bonding resins help the grain stay in place through extended use on hardwood and concrete.

Who It's For

These sanding screens are aimed at professionals and serious DIYers who refinish floors, perform site repairs, or maintain large surface areas with a square buff or compatible machine. The 120 grit version is a sensible middle choice for removing finish and preparing the surface between coats without overcutting the wood.

Those who should look elsewhere include users who need very fine polishing beyond 180 grit or people working exclusively with delicate trim where a hand sanding approach is required; also buyers who prefer adhesive-backed discs for random orbital sanders will not find these compatible.

Pros & Cons

Pros

• Long lasting abrasive performance thanks to sharp silicon carbide grain and durable resins.
• Precut 12in x 18in size fits common square buffs for quick replacement and consistent coverage.
• Washable and reusable design lowers overall cost and reduces waste on multi-step jobs.
• Available in a wide grit range so users can match the screen to the task.

Cons

• Adhesive or attachment method gets mixed feedback from customers, so fit and hold can vary by machine model.
• Not a substitute for very fine sanding beyond the listed grit range when mirror-smooth finishes are required.

Specifications

Brand	Mercer Industries
Size	12in x 18in
Grit	120
Quantity	10 precut screens per pack
Abrasive	Sharp silicon carbide grain
Compatible machines	Square buff, Clarke, Deva, Silver line
Reusable	Washable and reusable

Our Verdict

The Mercer 12in x 18in 120 grit sanding screens are a practical choice for anyone refinishing hardwood or preparing concrete who wants a balance of cutting power and longevity. Their washable, mesh-backed construction and availability in multiple grits make them good value for contractors and dedicated DIY users who need reliable performance without frequent replacement.

Frequently Asked Questions

Will these screens fit my square buff machine?
Yes, the 12in x 18in precut size is designed to fit square buff machines and is compatible with Clarke, Deva, and Silver line models.

Can these screens be reused after use?
Yes, the mesh construction and durable resins allow the screens to be washed and reused several times before replacement is needed.

What surfaces can I use 120 grit on?
120 grit works well for removing old finish and scuffing between coats on hardwood, and it is also suitable for preparatory work on concrete.