---
product_id: 444822560
title: "Tools 003-664 Thermo-Lock 1/2 lb."
brand: "grs"
price: "HK$685"
currency: HKD
in_stock: true
reviews_count: 5
category: "Grs"
url: https://www.desertcart.hk/products/444822560-tools-003-664-thermo-lock-1-2-lb
store_origin: HK
region: Hong Kong
---

# non-toxic 6" sticks 0.5 lb weight Tools 003-664 Thermo-Lock 1/2 lb.

**Brand:** grs
**Price:** HK$685
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in Comfort and Quality!

## Quick Answers

- **What is this?** Tools 003-664 Thermo-Lock 1/2 lb. by grs
- **How much does it cost?** HK$685 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/444822560-tools-003-664-thermo-lock-1-2-lb)

## Best For

- grs enthusiasts

## Why This Product

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

## Key Features

- • **Convenient Size:** Compact 6" sticks for easy handling and storage.
- • **Eye-Friendly Design:** Medium gray color reduces eye strain under work lights.
- • **Eco-Conscious Choice:** Non-toxic formulation for a safer workspace.
- • **Quality You Can Trust:** High-quality product made in the USA.
- • **Lightweight & Portable:** Weighs only 0.5 lb, perfect for on-the-go professionals.

## Overview

The GRS Tools 003-664 Thermo-Lock is a high-quality, non-toxic product designed for professionals seeking comfort and efficiency. Supplied in convenient 6" sticks, this medium gray material minimizes eye strain under work lights, making it an essential addition to any workspace. Weighing just 0.5 lb and proudly made in the USA, it's the perfect blend of portability and performance.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: Five Stars - This stuff is awesome... wish I had it 25 years ago
Review: Exelente producto - Excelente producto

## Features

- Supplied in convenient 6" (150mm) long sticks
- Thermo-Loc is a medium gray color designed to reduce eye strain under work lights
- High quality product
- It is non-toxic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 16 x 5.79 x 2.9 cm; 231 g |
| Batteries required | No |
| Import designation | Made in US |

## Images

![Tools 003-664 Thermo-Lock 1/2 lb. - Image 1](https://m.media-amazon.com/images/I/41ffZBI3-+L.jpg)

## Questions & Answers

**Q: at what temperature is it pliable?  I'm using a coffee warmer which goes to 131 degrees F, is that warm enough?**
A: It should be! I think it said 120 F in the instructions. I used a hair dryer for a while (slow but works) and now a heat gun.

**Q: Can this be used as a mold for metal resin or resin on pattern silicone sheets?**
A: I'm not sure if the resin will come away from the Thermo-lock cleanly or not.

**Q: Can Thermo-Lock be used to hold cast bezel pieces that require some removal of metal? Can it withstand some heat without the piece coming loose?**
A: Good question--Thermal lock heats very quickly in the microwave--and I only use it for engraving--I know it would hold the bezel in place nicely--as far as heat--maybe not

**Q: can it be used to embed stones on a jewelry piece while soldering? or will the compound melt too quickly?**
A: Do not - and I repeat DO NOT - expose to open flame.  It will burn quickly and the larger the piece the larger the flames and hotter it gets.  I tested it when I got the idea as well.  I test stones that I work with to see what their tolerance to soldering heat is.  Some stones are OK, but others will crack or shatter.  It is all part of the learning process.  Also, keep a fire extinguisher near your bench.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Five Stars
*by C***B on 12 January 2018*

This stuff is awesome... wish I had it 25 years ago

### ⭐⭐⭐⭐⭐ Exelente producto
*by D***O on 18 December 2024*

Excelente producto

### ⭐ Andere farbe,Keine Funktion!!!
*by B***. on 15 August 2025*

Unbrauchbar,gechört zu Mühltonne!!!

## Frequently Bought Together

- GRS - 1/2 Lb Bag Of Thermo-loc (225 Gm)
- VEVOR Ball Vise 5" Engraving Setting Tool 360°Rotation Engraving Block Vise 34 PCS Attachment Jewelry Engraving Block Tools Standard Block(5inch)
- Jewelry Engraver Tools,Engraving Cutting Bits for Pneumatic Impact Engraving Machine Jewelry Tool Edge Tungsten Steel Carving Graver Knife

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-20*