---
product_id: 373285642
title: "LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive"
brand: "lostronaut"
price: "฿3353"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/373285642-lostronaut-lapping-microfinishing-film-with-psa-set-of-8-polishing
store_origin: TH
region: Thailand
---

# Color-coded sheets for instant grit identification 8 precision micron sizes from 0.3 to 40 3mil high-strength PSA backing for secure adhesion LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive

**Brand:** lostronaut
**Price:** ฿3353
**Availability:** ✅ In Stock

## Summary

> 🔪 Sharpen like a pro, finish like a legend.

## Quick Answers

- **What is this?** LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive by lostronaut
- **How much does it cost?** ฿3353 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/373285642-lostronaut-lapping-microfinishing-film-with-psa-set-of-8-polishing)

## Best For

- lostronaut enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Adhesion:** Premium pressure-sensitive adhesive ensures no-slip, no-fuss application
- • **Drop-Proof Packaging:** Arrives protected and ready to perform—because your tools deserve the best
- • **Vibrant Color Coding:** Quickly switch grits with easy-to-read, color-coded sheets—stay efficient, stay sharp
- • **Ultimate Precision Control:** Master every edge with 8 distinct micron grits for flawless finishing
- • **Durable Aluminum Oxide Abrasive:** Long-lasting AO material delivers consistent, professional-grade polishing

## Overview

LOSTRONAUT’s Lapping Microfinishing Film set includes 8 premium 4.25’’ x 11’’ sheets with micron sizes ranging from 0.3 to 40, featuring durable aluminum oxide abrasive and a high-strength 3mil pressure-sensitive adhesive backing. Color-coded for quick grit identification and packed in drop-proof packaging, this set is designed for precision sharpening and polishing with the Scary Sharp system or any fine edge tool.

## Description

LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive

## Features

- Set of 8, 4.25'' x 11'', premium sheets containing the following micron sizes: .3, 1, 3, 5, 9, 12, 30, 40
- Each piece has its own unique color to easily identify micron grit size and stay efficient (color map included)
- Aluminum Oxide abrasive material (AO) and 3mil premium-high-strength pressure sensitive adhesive backing (PSA)
- Packed in drop-proof packaging to ensure you get a top-quality product every time
- Unlimited uses including scary sharp sharpening system and sandpaper chisel knife edge sharpener precision

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | LOSTRONAUT |
| Part number | 234234 |
| Item Weight | 85 g |
| Product Dimensions | 27.94 x 10.8 x 0.25 cm; 85 g |
| Manufacturer reference | 234234 |
| Size | 4.25 x 11 inch |
| Color | Assorted |
| Material | Aluminium |
| Item Package Quantity | 1 |
| Grit Rating | 0.3 |
| Grit Description | Coarse |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 4.25 x 11 inch
- **Colour:** Assorted
- **Backing type:** Film
- **Product dimensions:** 27.9L x 10.8W centimeters
- **Brand:** LOSTRONAUT

## Images

![LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive - Image 1](https://m.media-amazon.com/images/I/61kH869rOiS.jpg)
![LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive - Image 2](https://m.media-amazon.com/images/I/71sbRx5jJtS.jpg)
![LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive - Image 3](https://m.media-amazon.com/images/I/61wpfY5IXxS.jpg)
![LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive - Image 4](https://m.media-amazon.com/images/I/71oWl-roHXS.jpg)
![LOSTRONAUT Lapping Microfinishing Film With PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide With Pressure Sensitive Adhesive - Image 5](https://m.media-amazon.com/images/I/71rGMkt6OQS.jpg)

## Questions & Answers

**Q: Are the grit-to-micron listings in your description correct?  There are a few which do not match other listings found online.**
A: Thank you for your question. The grit/micron units are standard conversions and correct in the description.

**Q: Do they work on acrylic surface?**
A: Hi there,

Thank you for your question. We haven't tested yet on Acrylics. However, this product has a high quality 3 mil high-strength PSA (Pressure Sensitive Adhesive) backing which will stick to a surface.

**Q: Anyone who bought these, what is the difference between this item and sand paper?**
A: Last lot longer and give finer finish I've found. For lower grits use sandpaper and these to true and get your final edges.

**Q: Can these be used to sand/polish resin if both the 3d printing and art varieties?**
A: Thank you for your question. Yes, these microfinishing film sheets work exceptionally well for sanding and fine polishing resin in both 3D printing and art media.

## Frequently Bought Together

- Lapping Microfinishing Film with PSA - Set of 8 Polishing Sheets 4.25’’ x 11’’ for Scary Sharp Sharpening System - AO Aluminum Oxide with Pressure Sensitive Adhesive
- SCOTTCHEN Flat Glass Lapping Plate Sharpening System Dead Flat Float Plate Glass For Sharpening 5-1/8in W x 11-7/8in L x 8mm T -1pcs
- 3M (R) 7 Sheet 4-1/4 inch x 11 inch PSA Lapping Microfinishing Film for Scary Sharp Sharpening System Aluminum Oxide AO

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/373285642-lostronaut-lapping-microfinishing-film-with-psa-set-of-8-polishing](https://www.desertcart.co.th/products/373285642-lostronaut-lapping-microfinishing-film-with-psa-set-of-8-polishing)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-11*