---
product_id: 399115443
title: "Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz."
brand: "hi-gear"
price: "¥11637"
currency: JPY
in_stock: true
reviews_count: 1
url: https://www.desertcart.jp/products/399115443-hi-gear-hg9048s-insta-seal-permanent-block-sealer-8-fl
store_origin: JP
region: Japan
---

# Hi-Gear HG9048s Insta-Seal Permanent Block Sealer - 8 fl. oz.

**Brand:** hi-gear
**Price:** ¥11637
**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?** ¥11637 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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



## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |
| Item Form | Liquid |
| UPC | 009603190484 |
| Net Quantity | 236.59 Milliliters |
| Global Trade Identification Number | 00009603190484 |
| Surface Recommendation | Door, Siding, Wall, Window |
| Manufacturer | Hi-Gear |
| Country of Origin | USA |
| Item model number | HG9048s |
| Product Dimensions | 5.72 x 5.72 x 18.1 cm; 272.16 g |
| ASIN | B005VXFBIC |

## 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)

## 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*