--- product_id: 202827360 title: "Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50\") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50)" brand: "advanced girl" price: "£28.26" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/202827360-pressure-sensitive-torque-activated-cap-seals-liners-89mm-3-50 store_origin: GB region: Great Britain --- # No induction sealer needed Pressure-sensitive torque seal Made in USA quality Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) **Brand:** advanced girl **Price:** £28.26 **Availability:** ✅ In Stock ## Summary > 🔒 Seal in freshness, seal out hassle—upgrade your jar game today! ## Quick Answers - **What is this?** Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) by advanced girl - **How much does it cost?** £28.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/202827360-pressure-sensitive-torque-activated-cap-seals-liners-89mm-3-50) ## Best For - advanced girl enthusiasts ## Why This Product - Trusted advanced girl brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Leakproof Freshness Lock:** Advanced polystyrene foam liner prevents leaks and locks in flavor for herbs, spices, and powders. - • **Universal Wide-Mouth Fit:** Perfectly sized 89mm diameter fits all wide-mouth glass and plastic jars seamlessly. - • **Effortless Pro-Level Seal:** Just press the cap—no tools, heat guns, or induction sealers required. - • **Peel & Reveal Convenience:** Single-use liner peels off cleanly when you’re ready to access your contents—no mess, no fuss. - • **Trusted American Craftsmanship:** Proudly made in the USA, ensuring premium quality and reliability for your kitchen or business. ## Overview These 89mm pressure-sensitive torque activated cap seal liners provide a professional-grade airtight seal for wide-mouth glass and plastic jars without the need for induction sealers or heat tools. Made from durable polystyrene foam and manufactured in the USA, each pack includes 50 liners designed to prevent leaks and preserve the freshness of dry or powdered goods with effortless application and clean removal. ## Description These polystyrene jar foam liner seals coated with torque-activated adhesive require no tools and no heat induction equipment. For proper application consider the following recommendations: ● Make sure your pressure sensitive liner size matches the jar opening. These 89 mm (3.50 inches) seals are to be used with WIDE mouth jars that measure 3 in (76 mm) inner and 3 3⁄8 in (86 mm) outer diameter neck size. ● Completely clean the jar top with clean cloth and alcohol to clear of liquid and/or solids. Center jar seal on top of you plastic or glass jar, and apply. The white side of the seal shall be facing down, the side with black letters shall be facing up. ● Screw metal or plastic cap on jar. Make sure the liner and cap are tightly secured on the container. ● Once the cap is applied, it should not be removed for at least 24 hours to ensure proper adhesion. Although depending on your application, the adhesion process might take significantly less time. ● Seals can be used with glass and plastic jars and with lined or unlined caps. These pressure sensitive liners are best for use with powder or dry products. ● Avoid overfilling your containers! ● Once seal is removed, it cannot be reapplied. ● Not suitable for applications containing oil. ## Features - PRESSURE SENSITIVE SEAL LINERS provide an extra level of protection compared to a basic foam liner. The polystyrene white foam coated liner insert seals for jars PREVENT LEAKS and preserve FRESHNESS of your dry or powder products. - NUMBER 1 ADVANCED sealing technique used by professionals! NO INDUCTION SEALER or SHRINK BAND NEEDED with these liner seals. NO TOOLS, or heat gun REQUIRED! Just center your seal on the jar apply the cap and wait for 24 hours to adhere. - This press and seal liner, cap sealer, will keep your herbs and spices dry and fresh! This single-use foam seal peels easily from container when needed. - SEALING INSERTS provide an actual seal for different canning jars. These jar inner seals are coated with a torque activated coating. They are adhesive to GLASS and PLASTIC jars, and round containers with metal or plastic caps and closures. - 3.50 inches (89 mm) in DIAMETER, these jar sealers are used with any type of WIDE MOUTH jars, jugs, pots, cans or other round neck containers, which are made of glass or plastic, and measure 3 3/8 in (8.60 cm) in outer diameter neck size. ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Polystyrene | | Color | Black | | Brand | Advanced Girl | | Style | Compact | | Shape | Round | | Number of Pieces | 50 | | Is Dishwasher Safe | No | | Is Microwaveable | No | | Manufacturer | Advanced Girl | | Closure Type | Seal | | UPC | 791109852385 | | Item Weight | 1.83 ounces | | Package Dimensions | 7.01 x 4.57 x 1.1 inches | | Country of Origin | USA | | Size | 89mm | | Pattern | solid | | Item Package Quantity | 50 | | Batteries Required? | No | ## Product Details - **Material:** Polystyrene - **Color:** Black - **Brand:** Advanced Girl - **Style:** Compact - **Shape:** Round ## Images ![Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - Image 1](https://m.media-amazon.com/images/I/51Ux6a0EIKL.jpg) ![Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - Image 2](https://m.media-amazon.com/images/I/91dTIK60EtL.jpg) ![Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - Image 3](https://m.media-amazon.com/images/I/81THSyUEmbL.jpg) ![Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - Image 4](https://m.media-amazon.com/images/I/51sSc3PL-nL.jpg) ![Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - Image 5](https://m.media-amazon.com/images/I/81nyA1HSpOL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect to keep air out *by C***A on April 16, 2025* Great to keep my handmade washing powder dry and fresh. ### ⭐⭐⭐⭐⭐ Good quality product *by T***L on May 18, 2023* I've ordered these a few times. They are great for sealing my hair care products. They fit my 8 oz jars very well. ### ⭐⭐⭐ Adhesive is not very sticky *by I***A on July 9, 2024* The adhesive isn't sticky enough to maintain a good seal. ## Frequently Bought Together - Pressure Sensitive Torque Activated Cap Seals Liners -89mm (3.50") - 50 PCS -Made in USA -for Wide Mouth Glass & Plastic Ball Mason Canning Jars - No Induction Sealer Needed - Black (50) - 70 mm Foam Lid Liner Pressure Sensitive Seal Round Jar Sealer Bottle Seals Heat Resistant Foam Cap Torque Activated Safety for Protection Safety Jar Cap Bottle Vial Tamper Gasket Kit(200 Pieces) --- ## 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.uk/products/202827360-pressure-sensitive-torque-activated-cap-seals-liners-89mm-3-50](https://www.desertcart.co.uk/products/202827360-pressure-sensitive-torque-activated-cap-seals-liners-89mm-3-50) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-04-22*