PRO 21 Synthetic Garage Door Spray Grease – 9 oz Cans, Case of 12
Product Description
PRO 21 Spray Grease is a concentrated synthetic aerosol lubricant designed to reduce friction, eliminate squeaks and rattles, and protect moving metal components against rust, oxidation, and corrosion.
Unlike thin penetrating oils that may quickly run or drip away, PRO 21 sprays into joints and contact points before forming a longer-lasting lubricating film. Its solvent-free synthetic formulation is designed to remain on treated surfaces and provide extended protection under demanding operating conditions.
This lubricant is suitable for compatible garage door hardware, machinery, tools, shop equipment, bearings, hinges, pivots, and other moving metal parts.
This listing includes one full case containing 12 individual 9-ounce aerosol cans.
Product Specifications
| Specification | Details |
|---|---|
| Product name | PRO 21 Spray Grease |
| Product type | Synthetic aerosol grease |
| Product number | 436 |
| Container size | 9 oz per can |
| Package quantity | 12 cans per case |
| Total net contents | 108 oz per case |
| Lubricant type | Synthetic |
| Solvent-free formulation | Yes |
| Rust and corrosion protection | Yes |
| Operating-temperature range | Approximately −80°F to 400°F |
| Application method | Aerosol spray |
| Quantity sold | One case of 12 cans |
Common Garage Door Uses
PRO 21 may be applied in light, controlled amounts to compatible moving metal garage door components such as:
- Torsion spring coils
- Extension spring coils
- Steel roller bearings
- Steel roller stems
- Hinge pivot points
- Center bearings
- End bearings
- Bearing plates
- Lock mechanisms
- Latches
- Door-arm pivot points
- Chain-hoist components
- Other moving metal joints and contact surfaces
Always follow the garage door or opener manufacturer’s maintenance instructions. Some components require a specific lubricant, while other components should remain clean and dry.
Features and Benefits
- Concentrated synthetic lubricant
- Does not contain solvents
- Helps eliminate squeaks and rattles
- Helps reduce metal-to-metal friction
- Does not run or drip like light oil
- Helps protect against rust and corrosion
- Helps resist oxidation and surface distress
- Penetrates difficult-to-reach joints
- Leaves a longer-lasting lubricating film
- Suitable for hot and cold operating environments
- Convenient case quantity for service companies and repair shops
Garage Door Application Instructions
Apply only a light, controlled amount to components requiring lubrication.
Before application:
- Close and secure the garage door.
- Disconnect electrical power to the opener when working near moving or electrical components.
- Remove loose dirt, dust, and hardened lubricant.
- Protect vehicles, flooring, painted surfaces, and surrounding materials from overspray.
- Shake the aerosol can according to the instructions printed on the label.
- Apply a small amount directly to the bearing, pivot point, spring coil, or metal contact area.
- Wipe away excess lubricant.
After application, operate the garage door only after confirming the work area is clear and all safety components remain correctly installed.
Where Not to Apply
Do not spray this lubricant onto:
- Garage door track surfaces where rollers travel
- Photoelectric safety-sensor lenses
- Garage door opener belts
- Circuit boards
- Electrical terminals
- Brake surfaces
- Food-contact equipment
- Rubber or plastic parts unless compatibility is confirmed
- Painted or finished surfaces without testing a hidden area first
- Opener rails unless the opener manufacturer specifically approves synthetic grease
Garage door tracks should generally be cleaned rather than greased. Lubricant inside the tracks can collect dust and debris and may interfere with proper roller movement.
Screw-drive, chain-drive, and belt-drive garage door openers may require a manufacturer-specified lubricant. Check the opener manual before applying this product to the operator rail or drive system.
Torsion Spring Lubrication
A light coating may help reduce friction between neighboring torsion spring coils and provide protection against surface rust and corrosion.
Lubrication does not repair:
- Broken torsion springs
- Incorrectly sized springs
- Fatigued or weakened springs
- Cracked or distorted coils
- Loose winding cones
- Poor garage door balance
- Damaged cables, drums, bearings, or brackets
Never loosen, adjust, remove, or handle a torsion spring while it is under tension.
Additional Uses
PRO 21 may also be suitable for compatible moving metal components on:
- Shop machinery
- Hand and power tools
- Hinges and latches
- Bearings and bushings
- Drawer slides
- Automotive equipment
- Marine equipment
- Agricultural equipment
- Maintenance and service equipment
Confirm material compatibility and follow the equipment manufacturer’s lubrication requirements before use.
Package Contents
- Twelve PRO 21 synthetic spray-grease cans
- 9 ounces per aerosol can
- One full factory case
This is a case-quantity listing and is not one individual aerosol can.
Storage and Handling
Store the aerosol cans in a cool, dry, well-ventilated location away from direct sunlight, flames, sparks, hot surfaces, and other ignition sources.
Do not:
- Puncture or incinerate the aerosol container
- Expose the cans to excessive heat
- Spray near flames, sparks, or energized equipment
- Smoke while applying the product
- Store inside an excessively hot vehicle
- Leave the product within reach of children
- Use without sufficient ventilation
Read and follow all instructions, warnings, and first-aid information printed on the product label and current Safety Data Sheet.
Safety Warning
Aerosol lubricants may be flammable and may produce harmful vapors or spray mist.
Use only in a well-ventilated area. Avoid breathing the spray and prevent contact with the eyes and skin. Appropriate gloves and eye protection are recommended.
Keep away from children, pets, flames, sparks, hot surfaces, and energized electrical components.
Garage door springs, cables, cable drums, bottom brackets, and related hardware may remain under extreme tension even when the opener is disconnected. Lubrication must not involve loosening or adjusting tensioned garage door components.
PRO 21 Synthetic Garage Door Spray Grease – 9 oz, Case of 12
PRO 21 synthetic spray grease helps eliminate squeaks and protect garage door springs, hinges and bearings from rust. Twelve 9-ounce cans per case.
Details
Need Help With Compatibility?
Not sure if this is the correct part for your garage door, operator, gate system, or application? Contact Us before ordering — we’re happy to help.
Garage-DoorParts.com carries a large selection of residential and commercial parts, and many components can look similar while having important differences in dimensions, model numbers, voltage, mounting, or compatibility.
For the best assistance, please provide as much information as possible, including the manufacturer, model number, part number, door or operator type, dimensions, and clear photos of the existing part or equipment.
Our goal is to help you identify the correct product before you order and reduce the possibility of ordering an incompatible part.
Contact Us with your product questions and compatibility information, and we’ll do our best to point you in the right direction.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
Shop The Full Collection