--- product_id: 399115443 title: "Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz." brand: "hi-gear" price: "€ 64.20" currency: EUR in_stock: true reviews_count: 1 category: "Hi Gear" url: https://www.desertcart.hr/products/399115443-hi-gear-hg9048s-insta-seal-permanent-block-sealer-8-fl store_origin: HR region: Croatia --- # Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. **Brand:** hi-gear **Price:** € 64.20 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. by hi-gear - **How much does it cost?** € 64.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/399115443-hi-gear-hg9048s-insta-seal-permanent-block-sealer-8-fl) ## Best For - hi-gear enthusiasts ## Why This Product - Trusted hi-gear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Review: Not worth waste of money - Still observing it's service ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005VXFBIC | | Brand | HI-GEAR | | Brand Name | HI-GEAR | | Compatible Material | Wood, Concrete, Metal, Glass, Plastic, Composite Materials, etc. | | Country of Publication | USA | | Customer Reviews | 3.8 out of 5 stars 133 Reviews | | Global Trade Identification Number | 00009603190484 | | Item Dimensions | 5.7 x 5.7 x 18.1 Centimeters | | Item Form | Liquid | | Item Weight | 0.6 Pounds | | Item dimensions L x W x H | 5.7 x 5.7 x 18.1 Centimeters | | Manufacturer | Hi-Gear | | Manufacturer Part Number | HG9048S | | Material | Silicone | | Material Type | Silicone | | Model | HG9048s | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Door, Siding, Wall, Window | | UPC | 009603190484 | | Unit Count | 236.59 Milliliters | ## Product Details - **Material:** Silicone - **Brand:** HI-GEAR - **Style:** Compact - **Item Weight:** 0.6 Pounds - **Item dimensions L x W x H:** 5.7 x 5.7 x 18.1 Centimeters ## Images ![Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - Image 1](https://m.media-amazon.com/images/I/51xvmpfhAPL.jpg) ![Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - Image 2](https://m.media-amazon.com/images/I/61vhsxqk5oL.jpg) ![Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - Image 3](https://m.media-amazon.com/images/I/6110UmCEutL.jpg) ![Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - Image 4](https://m.media-amazon.com/images/I/61Ch3Uf0JwL.jpg) ![Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - Image 5](https://m.media-amazon.com/images/I/71vt8GMTHDL.jpg) ## Questions & Answers **Q: After you use it you have to change the motor oil my oil look like milk ?** A: A water cooling system leak into the interior of the engine mixing with the oil lubricating system produces a yellowish off white foam. Either a cracked block or head or a leaking head gasket are the usual suspect for this. I even have had a badly leaking cooling tube under the intake manifold on a 4.6 Liter Ford that no coolant leak additive could fix--a removal of intake manifold and replacement of tube was the only fix. It is very common for Aluminum head/block warpage due to even a one time overheating to cause head gasket leakage that only engine teardown and having the warp leveled can fix. For reasonably small leaks, I have used radiator sealer to stop them. **Q: Do you have to flush the radiator first?** A: Yes, I would flush it first, then add the installation seal. **Q: Does it says for how many cylinders it will work per .oz used** A: Didn't work on 6 cylinder for me. **Q: Will this work on a cracked block and water cooled manifold in a closed Mercruiser 5.7 liter V8 boat engine? Thanks.** A: It depends on how big the crack is. If very big probely not. My experience with with water manifold not likely. ## Customer Reviews ### ⭐⭐ Not worth waste of money *by J***S on 25 August 2023* Still observing it's service ## Frequently Bought Together - Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz. - K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required - K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks --- ## 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.hr/products/399115443-hi-gear-hg9048s-insta-seal-permanent-block-sealer-8-fl](https://www.desertcart.hr/products/399115443-hi-gear-hg9048s-insta-seal-permanent-block-sealer-8-fl) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-27*