Water-Based Release Agents

• Pros: Non-flammable, environmentally friendly, low VOC
• Cons: Slower evaporation, longer spray-to-close time
• Best for: General injection molding, molds under 100 degrees C
• Tip: Pre-heat mold to 60-80 degrees C before spraying

Solvent-Based Release Agents

• Pros: Fast evaporation, excellent wetting on complex geometries
• Cons: Flammable, VOC compliance needed, higher cost per application
• Best for: Deep-draw parts, high-temperature molds, critical surface finish
• Tip: Ensure adequate ventilation during application

Dry Film (PTFE/MoS2) Release Agents

• Pros: Multiple-release coating (5-20 shots per application), no transfer to parts
• Cons: Requires clean mold surface, periodic reapplication
• Best for: High-production runs, rubber molding, structural foam
• Tip: Apply by misting not soaking

Cost per 1000 shots:

• Water-based: approx 8-15 USD
• Solvent-based: approx 12-25 USD
• Dry film: approx 5-10 USD (spread over releases)

Water-based agents are gaining market share due to environmental regulations. Many molders keep both types on hand for different applications.

Which type works best for your shop?

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