---
product_id: 329907843
title: "SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch)"
brand: "signi"
price: "$1150"
currency: MXN
in_stock: true
reviews_count: 8
url: https://www.desertcart.mx/products/329907843-signi-s-c-plastic-back-grinding-disc-for-granite-marble
store_origin: MX
region: Mexico
---

# 7-10x longer lifespan than standard discs 24 grit Silicon Carbide for aggressive cutting 7-inch diameter for versatile use SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch)

**Brand:** signi
**Price:** $1150
**Availability:** ✅ In Stock

## Summary

> ⚡ Grind faster, last longer, and own the job site.

## Quick Answers

- **What is this?** SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch) by signi
- **How much does it cost?** $1150 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/329907843-signi-s-c-plastic-back-grinding-disc-for-granite-marble)

## Best For

- signi enthusiasts

## Why This Product

- Trusted signi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Durability:** Outlasts conventional aluminum oxide discs by up to 10 times—work smarter, not harder.
- • **Rapid Material Removal:** Aggressive 24 grit Silicon Carbide cuts and grinds faster, saving you valuable time.
- • **Seamless Compatibility:** Fits most angle grinders perfectly, making upgrades hassle-free.
- • **Consistently Smooth Finish:** Minimizes material loading for an even, professional surface every time.
- • **Effortless Precision Grinding:** Plastic back design eliminates need for backup pad, streamlining your workflow.

## Overview

The SIGNI S/C Plastic Back Grinding Disc is a 7-inch, 24 grit Silicon Carbide disc designed for aggressive cutting and grinding on granite, marble, concrete, and glass. Featuring a plastic back that removes the need for a backup pad, it fits most angle grinders and delivers up to 10 times longer life than traditional aluminum oxide discs, ensuring faster, smoother, and more efficient material removal.

## Description

S/C (Silicon Carbide) These grain types are very aggressive.  The grinding disc is flat with a plastic back.  The sanding disc fits most angle grinders and does not require a backing pad. The grinding disc attaches directly to the hand of the grinding machine. In comparison to depressed center wheels or resin fiber discs it is lighter, cuts faster, and grinds faster while leaving an even surface.  Quantity Included: 1 Pc 7 inch grinding disc 24#

## Features

- 7" S/C 24 Grit Disc, 1 Pack.
- This disc has a plastic back and does not require a backup pad.
- It lasts up to 7-10 times longer than conventional aluminum oxide resin fiber discs.
- Its design minimizes the loading of material being ground on the disc.
- It cuts faster than a conventional grinding disc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Grit Material | Silicon Carbide |
| Product Dimensions | 7"L x 7"W |
| Brand | SIGNI |
| Compatible Devices | Angle Grinder |
| Grit Type | Coarse |
| Item Thickness | 5 Millimeters |
| Grit Number | 24 |
| Construction Type | Grinding |
| Maximum Rotational Speed | 8500 RPM |
| UPC | 793513613583 |
| Recommended Uses For Product | Cutting, Grinding |
| Manufacturer | SIGNI INDUSTRIAL (SHANGHAI)CO.,LTD |
| Item Weight | 8.1 ounces |
| Size | 7 inch |
| Material | 24 Grit |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Grit Material:** Silicon Carbide
- **Product Dimensions:** 7"L x 7"W
- **Brand:** SIGNI
- **Compatible Devices:** Angle Grinder
- **Grit Type:** Coarse

## Images

![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch) - Image 1](https://m.media-amazon.com/images/I/A1JzpMyTXNL.jpg)
![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch) - Image 2](https://m.media-amazon.com/images/I/91zxB3r7MML.jpg)
![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch) - Image 3](https://m.media-amazon.com/images/I/A1M1vx5WuxL.jpg)

## Available Options

This product comes in different **Material Type, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Grinding disc
*by A***R on April 17, 2025*

These are awesome for fiberglass, fixing an old boat, it just literally chunks it out, even use it too cut too. They last a long time

### ⭐⭐⭐⭐⭐ Very effective and easy to use in a die grinder! Very happy with product!
*by A***S on February 4, 2025*

Works very well and will last long as well!

### ⭐⭐⭐⭐⭐ Works great to grind polyurea joint filler
*by D***W on November 6, 2024*

We use this discs when filling control joints in warehouses with polyurea joint filler compounds. This disc is aggressive enough to remove the overfilled material, but does not leave significant scratching on the concrete. This is great to use when we are only filling joints and not grinding the entire concrete slab. It is a great option for polished concrete and coating professionals/DIY'ers.

## Frequently Bought Together

- SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (24 Grit, 7 inch)
- SIGNI 5 Pack SiC Plastic Back Grinding Wheel for Granite/Marble/Concrete and Glasses (4.5 INCH, 24 GRIT)
- BHA Silicon Carbide Semi-Flexible Masonry and Coating Removal Sanding Disc, 4.5" x 7/8" - 5 Pack (80 Grit)

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**Shop now:** [https://www.desertcart.mx/products/329907843-signi-s-c-plastic-back-grinding-disc-for-granite-marble](https://www.desertcart.mx/products/329907843-signi-s-c-plastic-back-grinding-disc-for-granite-marble)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-31*