Metal Forming Fluids for HVAC Manufacturing
About Us
Cleaner parts.
Longer tool life.
No residue headaches.
Whether you’re stamping fins or expanding tubes, Circle-Prosco offers a line of high-performance forming fluids built for HVAC manufacturing. Our Draw Lube (DL)-series and Precoat products deliver clean, non-staining results with excellent lubricity and low odor—helping you improve part quality, simplify cleanup, and extend tool life.
Explore by Application
Fin Stamping Draw Lube (DL) Series
For drawing, stamping, and forming aluminum, copper, or steel HVAC fins.
DL-485 A – Light to Medium-Duty Fin Stamping Fluid
A clean, non-staining fluid designed for drawing, stamping, and honing on nonferrous metals. DL-485 A delivers strong lubricity, easy removability, and low odor—ideal for HVAC fin forming applications where tool life and part quality matter.
- Strong lubricity for smoother forming and longer tool life
- Non-staining and low odor for a cleaner work environment
- Easy to clean with standard degreasing methods
- Compatible with welding, brazing, and filtration systems
- Ready to use - no mixing required
DL-497 H – Medium-Duty Fin Stamping Fluid
A clear, non-staining lubricant for ferrous and non-ferrous metals. Won’t build up on machines or parts and supports easy post-process cleaning.
- No residue buildup on parts or tooling
- Works on ferrous and non-ferrous metals
- Easy spray, dip, or brush application
- Compatible with welding and brazing
- Ready to use—no mixing required
DL-784 – Medium-Duty Forming Fluid
Ideal for HVAC fin stamping with aluminum, copper, and steel. Delivers clean, consistent results with excellent hydrolytic stability.
- Clean performance across common HVAC metals
- Easy to remove with standard cleaning methods
- Hydrolytically stable for demanding operations
- Low odor and non-staining
- Compatible with filtration systems
DL-735 – Premium Medium-Duty Fluid
Formulated for high-precision HVAC forming. Delivers superior part finish, longer tool life, and clean removal.
- Excellent lubricity and non-staining performance
- Supports honing and stamping
- High hydrolytic stability
- Effective across aluminum, copper, and steel
- Easily filtered for low-contaminant operations
DRAW LUBE 760 – Aluminum Fin Stamping Fluid
Built for aluminum heat exchanger stamping. Easily removed by thermal, solvent, or aqueous cleaning. Delivers consistent draw strength with minimal odor.
- Designed for aluminum HVAC heat exchangers
- Thermal degreasing compatible
- Strong lubricity and tool protection
- Low odor, high performance
- Ideal for precision manufacturing environments
Product Comparison Guide
Fin stamping, tube bending, and plant floor application for tube expansion
| Product Name | Application Type | Duty Level | Best For | Compatible Metals | Odor | Removal For Next Step | Notes |
|---|---|---|---|---|---|---|---|
| DL-485 A | Fin Stamping | Light - Medium | Precision Stamping, Honing | Nonferrous (Aluminum, Copper) | Low | Dries with no residue; Thermal / Solvent / Aqueous | Clean, high-purity fluid for thin gauge fins, spray / dip / brush application |
| DL-497 H | Fin Stamping | Light - Medium | General purpose fin stamping | Nonferrous + Steel | Low | Dries with no residue; Thermal / Solvent / Aqueous | Non-residue build-up, excellent collar forming, spray / dip / brush application |
| DL-784 | Fin StampingTube BendingTube Expansion | Medium | HVAC aluminium, copper, steel | Nonferrous + Steel | Low | Dries with no residue; Thermal / Solvent / Aqueous | Versatile lubricant, Hydroytically stable, HVAC-specific |
| DRAW LUBE 760 | Fin StampingTube BendingTube Expansion | Medium | HVAC aluminium, copper, steel; Fins and Tubes | Nonferrous + Steel | Low | Thermal / Solvent / Aqueous | Versatile lubricant, Hydroytically stable |
| DL-735 | Fin StampingTube BendingTube Expansion | Medium - Heavy | General-purpose forming, HVAC aluminium, copper, steel; Fins and Tubes | Nonferrous + Steel | Low | Thermal / Solvent / Aqueous | Hydroytically stable, Low VOC for medium go heavier-duty operations |
Tube Expansion (Precoat Series)
For light to medium-duty tube expansion, stamping, and forming.
Precoat 008 – Light-Duty Expansion Fluid
Non-staining fluid for light drawing, stamping, and expansion. Formulated for clean removability and strong lubricity on nonferrous metals.
- Smooth expansion and forming on aluminum and copper
- Non-staining and low odor
- Compatible with welding and brazing
- Easily cleaned by standard degreasing methods
- High lubricity for better finish and tool life
Precoat 456E – Quick-Drying Forming Fluid
Dries on contact for pre-applied use. Suitable for both ferrous and nonferrous parts. Great for high-throughput expansion processes.
- Apply before forming - dries cleanly
- Supports high-volume expansion with low contaminants
- Excellent lubricity and tool protection
- Compatible with filtration systems
Precoat 255 – General-Purpose Expansion Fluid
Reliable forming fluid for HVAC tube expansion and shaping. Non-staining, low odor, and weld-safe.
- Light to medium-duty performance
- Compatible with aluminum, copper, and brass
- No residue issues - easy to clean
- Excellent properties for thermal degreasing
- Helps reduce tool wear
Product Comparison Guide
precoat expansion lubricants designed for application to level-wound tubing / tubing in coil
| Product Name | Application Type | Duty Level | Best For | Compatible Metals | System Compatibility | Odor | Removal | Notes |
|---|---|---|---|---|---|---|---|---|
| PRECOAT 008 | Tube Expansion | Light - Medium | High-volume / pre-applied use Expansion + stamping on AI/Cu | Nonferrous (Aluminum, Copper) | Non-reactive to new and old generation refrigerants and compressor oils | Low | Dry to touch | HVAC tube expansion and forming Miscible in new and old generation refrigerants and compressor oils |
| PRECOAT 465E | Tube Expansion | Light - Medium | High-volume / pre-applied use | Aluminum | Non-reactive to new and old generation refrigerants and compressor oils | Low | Dry to touch | Best in industry lubrication performance for tube expansion |
| PRECOAT 255 | Tube Expansion | Light - Medium | High-volume / pre-applied use General HVAC tube expansion | Nonferrous (Aluminum, Copper, Brass) | Non-reactive to new and old generation refrigerants and compressor oils | Low | Dry to touch | Clean finish, weld-compatible Miscible in new and old generation refrigerants and compressor oils |
Meet the Solution Squad