--- title: Dry ice blasting effectively cleans casting molds and core boxes description: By using dry ice blasting, the foundry was able to clean their low pressure casting molds and core boxes faster and more effectively without damaging them. image: https://blog.coldjet.com/hubfs/Foundry%20-%20Die%20casting%20-%20Frech%206-1.jpg --- [![USA](https://blog.coldjet.com/hubfs/Cold_Jet_August2019%20Theme/Images/usa%20(1).png)English](https://www.coldjet.com/country-selector/) - [Careers](https://www.coldjet.com/careers/) - [About Cold Jet](https://www.coldjet.com/about-cold-jet/) - [Global Presence](https://www.coldjet.com/global-offices/) - [myColdJet Login](https://www.mycoldjet.com/) - [Pay Online](https://www.payerexpress.com/ebp/ColdJet/Login/Index?_fsi=gmZYmFqM) Search for: - [Dry Ice Blasting](https://www.coldjet.com/dry-ice-blasting/) - [Industries](https://www.coldjet.com/dry-ice-blasting/industries/) - [Aerospace & Aviation](https://www.coldjet.com/dry-ice-blasting/industries/aerospace-aviation/) - 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Rounding of mold edges leads to flash on the parts, shortens the mold life and creates secondary waste and potential eye injuries from atmospheric contaminants. The refractory coating (releasing agent), the resin spray buildup, sand casting components and core residues on the core boxes and low-pressure casting molds are currently being removed by **sand blasting** and **manually with brushes**. **These cleaning methods:** - Are labor intensive, slow and ineffective - Cause extensive downtime - Cause damage to equipment (damages vents and destroys urethane on mold) - Put workers’ safety at risk The foundry began to research new cleaning methods that would remove the refractory coatings and other residual material **without damaging mold vents**. They also wanted to avoid uneven refractory coating, which affects the quality of the final product and speed of production. ![Dry ice blasting die casting](https://blog.coldjet.com/hs-fs/hubfs/Foundry%20-%20Die%20casting%20-%20Frech%202.jpg?width=6000&name=Foundry%20-%20Die%20casting%20-%20Frech%202.jpg) **The Solution: Dry ice blasting** The Progress Casting Group tested a dry ice blasting system and used it to clean their most delicate screen vents at full blast. The **dry ice blasting process** is similar in concept to sand or soda blasting, where the respective media is accelerated through a pressurized air stream to clean a surface.  However, that is where the similarities end. **Dry ice blasting provides several benefits compared to traditional methods, including that it:** 1. 1. 1. Provides a clean-in-place solution 2. Is non-abrasive and will not damage sensitive equipment 3. Is non-conductive 4. Is environmentally responsible 5. Does not add secondary waste 6. Is able to clean in tight spaces **Even at maximum blast aggression, there was no damage to the parts and the molds looked brand new.** [**Read more about dry ice blasting**](https://blog.coldjet.com/what-is-dry-ice-blasting) ![Dry ice blasting foundry molds](https://blog.coldjet.com/hs-fs/hubfs/foundry%20before%20and%20after.jpg?width=1407&name=foundry%20before%20and%20after.jpg)   **The Results** > *“We estimated that it would pay for itself in six months; I know that it took only a month. Every foundry needs to own one.”* > >   **1) Reduced cleaning time** Previously, **it took two to three workers 3-4 hours to clean** one or two molds. Today, **it takes one worker 10 minutes to clean** a mold while it remains hot and online. **2) Cost savings** The tooling supervisor estimates that they are saving **$400 - $500 per mold** with a dry ice blasting system. Approximate annual labor savings: $15,340. **3) Increased productivity** Approximate annual productivity gain: $92,115. **4) Increased profits** Annual net profit (5 mold machines): $106,544. Rate of Return: 367%.   [Learn more about dry ice blasting in foundry](https://www.coldjet.com/dry-ice-blasting/industries/foundry/) [Foundry](https://blog.coldjet.com/tag/foundry) ### Subscribe Here! ## Featured posts ### Posts by Tag - [Adhesive Removal (1)](https://blog.coldjet.com/tag/adhesive-removal) - [Aero2 Series (1)](https://blog.coldjet.com/tag/aero2-series) - [Aerospace (2)](https://blog.coldjet.com/tag/aerospace) - [Automation (1)](https://blog.coldjet.com/tag/automation) - [Automotive (7)](https://blog.coldjet.com/tag/automotive) - [Benefits of dry ice blasting (15)](https://blog.coldjet.com/tag/benefits-of-dry-ice-blasting) - [Coating and Corrosion (1)](https://blog.coldjet.com/tag/coating-and-corrosion) - [Company culture (1)](https://blog.coldjet.com/tag/company-culture) - [Comparisons (5)](https://blog.coldjet.com/tag/comparisons) - [Compressed Air (1)](https://blog.coldjet.com/tag/compressed-air) - [Contract Cleaning (25)](https://blog.coldjet.com/tag/contract-cleaning) - 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