Choosing the Right Plastic Tool Dip Coating: Type 1, Type 2, or Type 4?
Created at :
Apr 2, 2025
Plastic tool dip coatings offer an efficient and effective way to protect metal tools, parts, and assemblies during storage, shipping, manufacturing, and finishing. These coatings are commonly used for their ability to form a temporary, peelable protective layer that guards against damage and environmental exposure. But with several formulations available—specifically Type 1, Type 2, and Type 4—it's important to understand which type is best suited for your application.
Here’s a breakdown of each type and the scenarios in which they perform best.
Type 1: General-Purpose Coating
Type 1 coatings are typically based on PVC and are designed for general-purpose protection. They are soft, flexible, and easily strippable by hand, making them ideal for parts that require temporary coverage. This type of coating is commonly applied to tools, fixtures, and machined components that need to be shielded from scratches, minor abrasions, and moisture during storage or shipping.
Type 1 coatings are especially useful when ease of removal is a priority and the protected parts are not subjected to harsh handling conditions.
Common uses include:
- Protection of tools in storage
- Light-duty coverage during transport
- Temporary masking of non-critical surfaces
Type 2: Heavy-Duty Coating
Type 2 coatings are also PVC-based but modified for increased toughness and abrasion resistance. These coatings are slightly harder and more durable than Type 1, making them better suited for parts that will face rougher handling, impact, or movement during transport or industrial use.
While still peelable, Type 2 coatings adhere more firmly to the part and may require more effort to remove. Their enhanced durability makes them ideal for applications where additional strength is needed without compromising removability.
Common uses include:
- Industrial equipment during transit
- Machined parts exposed to rough handling
- Applications requiring more robust protection than Type 1 can provide
Type 4: Precision and High-Temperature Coating
Type 4 coatings are designed for specialized applications where precision and temperature resistance are important. They are typically made from enhanced PVC or rubber-based compounds that form a thin, tightly adhering layer. These coatings offer excellent edge definition, making them ideal for masking parts during processes such as powder coating, plating, or painting.
Type 4 coatings are also formulated to withstand elevated temperatures, making them suitable for use in environments where other coatings might soften or degrade.
Common uses include:
- Masking during painting or powder coating
- Protection in high-temperature environments
- Applications requiring clean edges and tight tolerances
Choosing the Right Coating for Your Application
Each coating type serves a specific role depending on the demands of the task. Type 1 is best for light-duty, easily removable protection. Type 2 is preferred when additional durability is needed. Type 4 is the choice for precision applications and high-temperature environments. Selecting the correct type ensures not only proper protection of your parts but also efficiency in removal and workflow compatibility.
If you're unsure which plastic tool dip coating is right for your needs, consult with a dip coating supplier who can help match the formulation to your specific application requirements.