Windshield Washer Fluid 72% Concentrate -45F

Windshield Washer Fluid 72% Concentrate -45°F

Bulk Methanol-Based Windshield Washer Concentrate for Custom Winter Blending

Windshield Washer Fluid 72% Concentrate is a concentrated methanol-and-water windshield washer solution with blue dye designed for bulk automotive and fleet applications. The concentrated formulation can be diluted with water to produce windshield washer fluid with the freeze protection needed for different winter operating conditions.

This makes the product useful for fleets, maintenance facilities, transportation operations and other users that want to prepare windshield washer fluid in bulk rather than purchase a single ready-to-use winter formulation.

PSC identifies the product as a 72% methanol blend. For automotive washer-fluid use, PSC lists a 1:1 dilution with water as producing approximately twice the finished volume with freeze protection to about -25°F.

Key Features

• 72% methanol windshield washer concentrate
• Designed for bulk windshield washer-fluid blending
• Can be diluted with water for different winter conditions
• Suitable for automotive and fleet washer systems
• Helps remove road grime, dust, bugs and road splash
• Supports windshield de-icing and defrosting
• Blue dye for conventional washer-fluid identification
• Concentrated format reduces storage volume before blending
• Useful for shops and fleets that consume washer fluid in large quantities
• Methanol freeze-protection chart available for custom blending

Concentrated Windshield Washer Fluid

Unlike ready-to-use windshield washer fluid, this product is supplied as a concentrated solution.

Water can be added to adjust the methanol concentration and resulting freeze protection.

This allows operators to prepare washer fluid based on:

• Expected winter temperatures
• Fleet operating region
• Seasonal conditions
• Required finished volume
• Storage and purchasing requirements

Because freeze protection changes with methanol concentration, the correct water-to-concentrate ratio should be determined before blending.

1:1 Bulk Dilution

PSC currently identifies the following bulk-blending option:

1 part 72% concentrate + 1 part water

A 55-gallon drum can therefore be blended with approximately 55 gallons of water to produce about 110 gallons of finished windshield washer fluid.

PSC lists this finished mixture as providing freeze protection to approximately -25°F.

Actual finished volume and freeze protection should be verified using the applicable methanol blending guidance before use.

Methanol Concentration and Freeze Protection

Methanol lowers the freezing point of water, but the relationship between concentration and freeze protection is not linear.

PSC's Methanol Freeze Protection Ratio chart provides the following reference points:

Values above are reference points from PSC's Methanol Freeze Protection Ratio chart. Use the chart when determining custom blend requirements.

Do not estimate a blend solely from the product name or expected outdoor temperature.

Automotive and Fleet Applications

Windshield Washer Fluid 72% Concentrate is useful for bulk preparation of washer fluid for:

• Passenger cars
• Pickup trucks
• Commercial trucks
• Delivery vehicles
• Fleet vehicles
• Service vehicles
• Municipal fleets
• Construction equipment with windshield washer systems
• Other compatible automotive washer systems

The concentrated format is particularly useful where washer fluid is consumed regularly across multiple vehicles.

Cleaning and Winter Performance

Methanol-based windshield washer fluid performs two functions during winter operation.

Windshield Cleaning

The washer solution helps remove:

• Dirt
• Road grime
• Dust
• Bugs
• Road splash

Freeze Protection

Methanol lowers the freezing point of the washer solution so the fluid remains usable at temperatures below the freezing point of water.

Selecting the correct concentration is important because excessive dilution can reduce winter freeze protection.

Concentrate vs. Ready-to-Use Washer Fluid

This product should not be confused with PSC's ready-to-use -20°F windshield washer fluid.

72% Concentrate

• Intended for dilution
• Allows custom winter blending
• Useful for bulk fleet consumption
• Produces additional finished washer fluid when water is added

Ready-to-Use Washer Fluid

• Already blended to its final concentration
• No mixing required
• Intended to be poured directly into the washer reservoir

Choose the product based on whether bulk blending or ready-to-use convenience is more important for the application.

Safe Handling and Storage

This is a methanol-based product and requires appropriate handling.

The Safety Data Sheet classifies the concentrate as a highly flammable liquid and identifies methanol exposure hazards. Keep the product away from heat, sparks, open flames and other ignition sources.

When handling the concentrate:

• Use adequate ventilation
• Avoid breathing concentrated vapors
• Avoid skin and eye contact
• Wear appropriate gloves and eye protection
• Keep containers tightly closed
• Keep away from ignition sources
• Ground and bond equipment during bulk transfer where required

Store the product in a cool, dry area away from direct sunlight with the container closed when not in use.

Always review the current Safety Data Sheet before handling or transferring bulk concentrate.

Important Use Note

This product is formulated as windshield washer concentrate.

It is not engine antifreeze or engine coolant and should not be added to a vehicle cooling system.

Use only in applications appropriate for methanol-based windshield washer fluid and follow the vehicle or equipment manufacturer's instructions.

Frequently Asked Questions