---
product_id: 725426932
title: "SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch)"
brand: "signi"
price: "945971₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/725426932-signi-s-c-plastic-back-grinding-disc-for-granite-marble
store_origin: VN
region: Vietnam
---

# 7-10x longer lifespan than conventional discs 8 grit silicon carbide for ultra-aggressive cutting 7-inch diameter for versatile grinding SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch)

**Brand:** signi
**Price:** 945971₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Grind faster, last longer, and own every project with SIGNI’s powerhouse disc!

## Quick Answers

- **What is this?** SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch) by signi
- **How much does it cost?** 945971₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/725426932-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:** Lasts up to 10 times longer than traditional aluminum oxide discs—work smarter, not harder.
- • **Lightweight & Balanced:** At just 0.8 ounces, experience less fatigue and more control during extended use.
- • **Rapid Material Removal:** Silicon carbide grit ensures faster cutting and grinding on granite, marble, concrete, and glass.
- • **Universal Compatibility:** Fits most angle grinders and supports speeds up to 8500 RPM for professional-grade performance.
- • **Effortless Precision Grinding:** Plastic back design eliminates need for backup pad, streamlining your workflow.

## Overview

The SIGNI 7-inch S/C Plastic Back Grinding Disc features an aggressive 8 grit silicon carbide surface designed for rapid, precise grinding on granite, marble, concrete, and glass. Its innovative plastic back removes the need for a backup pad, enhancing ease of use and reducing setup time. Engineered to last 7-10 times longer than conventional aluminum oxide discs, it supports speeds up to 8500 RPM and fits most angle grinders, making it the ultimate tool accessory for professionals seeking efficiency and durability.

## 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" grinding disc 8# grit.

## Features

- 7" S/C 8 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 | Extra Coarse |
| Item Thickness | 5 Millimeters |
| Grit Number | 8 |
| Construction Type | Super-Abrasive |
| Maximum Rotational Speed | 8500 RPM |
| UPC | 793513613538 |
| Manufacturer | SIGNI INDUSTRIAL (SHANGHAI)CO.,LTD |
| Part Number | ZEC7-8 |
| Item Weight | 0.8 ounces |
| Size | 7 inch |
| Material | 8 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:** Extra Coarse

## Images

![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch) - Image 1](https://m.media-amazon.com/images/I/81A0uyeKzfL.jpg)
![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch) - Image 2](https://m.media-amazon.com/images/I/915bo1DHjCL.jpg)
![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch) - Image 3](https://m.media-amazon.com/images/I/91hiHGVzSRL.jpg)
![SIGNI S/C Plastic Back Grinding Disc for Granite/Marble/Concrete and Glasses (8 Grit, 7 inch) - Image 4](https://m.media-amazon.com/images/I/913alvXQJnL.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 (8 Grit, 7 inch)
- SIGNI 5 Pack SiC Plastic Back Grinding Wheel for Granite/Marble/Concrete and Glasses (7 INCH, 8 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.vn/products/725426932-signi-s-c-plastic-back-grinding-disc-for-granite-marble](https://www.desertcart.vn/products/725426932-signi-s-c-plastic-back-grinding-disc-for-granite-marble)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-12*