--- product_id: 324302124 title: "Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics" brand: "renian" price: "138.58 DT" currency: TND in_stock: true reviews_count: 12 category: "Renian" url: https://www.desertcart.tn/products/324302124-polarized-film-sheets-2-pcs-8x11inches-20x30cm-adhesive-polarizer-linear store_origin: TN region: Tunisia --- # 360° rotatable for perfect polarization 20x30cm large size Adhesive backing for easy application Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics **Brand:** renian **Price:** 138.58 DT **Availability:** ✅ In Stock ## Summary > 🕶️ See the unseen: Master light with every peel & stick! ## Quick Answers - **What is this?** Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics by renian - **How much does it cost?** 138.58 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/324302124-polarized-film-sheets-2-pcs-8x11inches-20x30cm-adhesive-polarizer-linear) ## Best For - renian enthusiasts ## Why This Product - Trusted renian brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Customizable Fit:** Easily cut and rotate the film to match any screen angle for optimal polarization effect. - • **Generous 20x30cm Size:** Ample coverage for small screens, dashboards, and educational demos without constant reapplication. - • **Peel & Stick Convenience:** Adhesive backing with protective layers makes installation effortless and damage-free. - • **Versatile Educational Tool:** Ideal for physics demos, stress analysis, and enhancing LCD screen clarity—join the optics-savvy pros. - • **Precision Polarization Control:** Linear polarizing film ensures crystal-clear screen visibility and stress pattern analysis. ## Overview RENIAN Polarized Film Sheets are 0.19mm thin, 20x30cm linear polarizers with adhesive backing, designed for easy application on flat LCD screens and educational optics setups. Perfect for motorcycle dashboards, small electronic displays, and physics demonstrations, these films allow precise angle adjustment to reveal stress patterns and improve screen visibility. Each pack includes two durable sheets protected by dual-layer films, ensuring pristine quality upon use. ## Description Specification: Polarization: Linear Size:7.8x11.8 inches/ 20x30cm Thickness:0.19mm Feature: These small polarizers are used for Motorcycle dashboard display, small size screen, projector screen, electronic watch screen. There are three layers of display film, the middle layer is display film, with protective film on both sides How to use: 1. Confirm the sticky side (tear a little protective film at the corners to confirm the stickiness, do not tear it all apart) 2. While keeping the power on, take the screen as the center point, the sticky side is overlapped on the screen, the polarizing film rotates 360 degrees clockwise. Find a clear location, mark the location and cut it and paste it. Note: Why rotate? Each display film must be rotated to match the position, and each screen angle is different Review: Good stuff - Like a phone screen, clean peel and stick. Not really suitable for curved surfaces and it lifts but ideal for completely flat. I wanted to polarize my trusty glasses so tried on a cheap pair first. The lens is curved to much for the from to stay in place. No stars lost on quality though and it arrived in a hardboard sleeve to protect from damage. I will use it for other things. Review: Excllent - I purchased these RENIAN Polarized Film Sheets specifically for demonstrating cross‑polarisation and residual stress analysis, and they performed exactly as needed. Each sheet arrives protected on both sides, and once the protective layers are removed, the film shows a clear and consistent polarising effect. The adhesive backing is helpful when mounting the film in fixed positions for demonstrations, and the 20×30 cm size provides plenty of working area for setting up optical experiments. For stress analysis, the sheets produce clear birefringence patterns when paired with a second polariser and a suitable light source. Plastic samples placed between the crossed polarisers showed stress fringes with good contrast, making this a very effective low‑cost option for teaching or lab demonstrations. The film cuts cleanly, allowing customised shapes for different setups. Do note that the film must be rotated to find the correct orientation for full extinction, which is expected for this type of work. While some users report receiving mixed adhesive and non‑adhesive sheets, my delivery matched the description. Overall, these sheets are an excellent choice for educational optics, engineering demonstrations, or anyone needing a simple and affordable way to visualise stress patterns in transparent materials. ## Features - Polarization: Linear, Size: 7.8x11.8 inches/ 20x30cm, Thickness: 0.19mm. - Polarizing film with adhesive: Both sides have protective film, one side is adhesive. Before you use it, please peel off film. - Wide Application: Used for Motorcycle dashboard display, small size screen, electronic watch screen. - How to use: After the polarizer is cleaned of dust, adjust the angle, cut it into the corresponding shape, and stick it on for use. - Package: 2 x Polarizing film sheet.Not suitable for 3d printer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08Q7B62JH | | Best Sellers Rank | 36 in Photography Polarizing Filters | | Brand | RENIAN | | Brand Name | RENIAN | | Coating Description | Multi Coating | | Coating description | Multi Coating | | Compatible Devices | Any device with an LCD screen | | Country of Origin | China | | Customer Reviews | 4.1 out of 5 stars 932 Reviews | | Enclosure Material | Plastic | | Item Dimensions L x W | 15.2W centimetres | | Manufacturer | RENIAN | | Manufacturer Part Number | GEL-11 | | Material | Plastic | | Model Name | Hojas de película polarizada | | Model Number | GEL-11 | | Number of Pieces | 2 | | Photo Filter Effect Type | Polarizer | | Photo Filter Thread Size | 11 Inches | | Photo filter effect type | Polarizer | | Photo filter thread size | 11 Inches | | Screen Size | 8 Inches | | Set Name | 2 | | UPC | 700512796803 | | Viewfinder Type | LCD Screen | | Water Resistance Level | Not Water Resistant | | Water resistance level | Not Water Resistant | ## Product Details - **Brand:** RENIAN - **Coating description:** Multi Coating - **Material:** Plastic - **Number of items:** 2 - **Photo filter effect type:** Polarizer - **Photo filter thread size:** 11 Inches - **Product dimensions:** 15.2W centimetres - **Set Name:** 2 - **UPC:** 700512796803 - **Water resistance level:** Not Water Resistant ## Images ![Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - Image 1](https://m.media-amazon.com/images/I/41M8Qpvz6fL.jpg) ![Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - Image 2](https://m.media-amazon.com/images/I/511Z63UwYtL.jpg) ![Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - Image 3](https://m.media-amazon.com/images/I/614hzvk6VZL.jpg) ![Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - Image 4](https://m.media-amazon.com/images/I/71dePIcSSyL.jpg) ![Polarized Film Sheets 2 PCS 8x11inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - Image 5](https://m.media-amazon.com/images/I/61ewySwudAL.jpg) ## Questions & Answers **Q: Is this matt or glossy?** A: when applied the surface is a glossy finish. I have used this on glass. There is a protective film that must be removed once the product is applied to a surface (as seen in video). ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good stuff *by S***E on 8 April 2026* Like a phone screen, clean peel and stick. Not really suitable for curved surfaces and it lifts but ideal for completely flat. I wanted to polarize my trusty glasses so tried on a cheap pair first. The lens is curved to much for the from to stay in place. No stars lost on quality though and it arrived in a hardboard sleeve to protect from damage. I will use it for other things. ### ⭐⭐⭐⭐⭐ Excllent *by V***R on 12 February 2026* I purchased these RENIAN Polarized Film Sheets specifically for demonstrating cross‑polarisation and residual stress analysis, and they performed exactly as needed. Each sheet arrives protected on both sides, and once the protective layers are removed, the film shows a clear and consistent polarising effect. The adhesive backing is helpful when mounting the film in fixed positions for demonstrations, and the 20×30 cm size provides plenty of working area for setting up optical experiments. For stress analysis, the sheets produce clear birefringence patterns when paired with a second polariser and a suitable light source. Plastic samples placed between the crossed polarisers showed stress fringes with good contrast, making this a very effective low‑cost option for teaching or lab demonstrations. The film cuts cleanly, allowing customised shapes for different setups. Do note that the film must be rotated to find the correct orientation for full extinction, which is expected for this type of work. While some users report receiving mixed adhesive and non‑adhesive sheets, my delivery matched the description. Overall, these sheets are an excellent choice for educational optics, engineering demonstrations, or anyone needing a simple and affordable way to visualise stress patterns in transparent materials. ### ⭐⭐⭐⭐ THIS IS NOT FOR 3D PRINTERS? However! *by I***H on 22 May 2023* I damaged the screen on my LCD printer and ordered this by mistake as it clearly says not for 3d printers, I didn`t read the add fully so my fault. So anyway I thought why isn`t it any good for 3d printer? It is a polarising filter just like any other. So I went on You Tube and learnt that you need to orientate a polarising filter over the exposure screen until youi achive the greatest contrast. I did this then backed it up just a few degrees cut the film and placed it flat on my LCD screen did not though glue it. Then carried out a cones of clibration test in grey and it was pretty close to perfect so I printed the landing craft you see in the picture, I dropped it and broke the mast! but it looks pretty good. Now going to try a red translucent resin did a cones test exposure sligntly high so doing a second. However to the point this is not for 3d printers BUT it does and still is working on mine. Elgoo Saturn, why is it working? I do not know but it does seem to be I shall of course order proper printer polariser but at the moment its not broke so am not going to fix it. Pictures show the results. My Saturn is printing really well with a sheet of this fitted I don't know why. ## Frequently Bought Together - Polarized Film Sheets 2 PCS 7.8x11.8inches/20x30cm Adhesive Polarizer Linear Polarizing Filter for Screen Educational Physics - GVM Great Video Maker LED Ring Light 5600K Selfie Light, Smartphone Video Rig & Phone Video Stabilizer for Camera, Smartphone, Makeup, YouTube Setup, Self-Portrait Shooting with Bluetooth --- ## 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.tn/products/324302124-polarized-film-sheets-2-pcs-8x11inches-20x30cm-adhesive-polarizer-linear](https://www.desertcart.tn/products/324302124-polarized-film-sheets-2-pcs-8x11inches-20x30cm-adhesive-polarizer-linear) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-04*