Understanding the Chemistry: Cross-Linking in Urethane Coatings

Crosslinking density in urethane coatings refers to how tightly the chemical bonds (links) are packed within the material. To illustrate this concept, consider two types of fabric weaves:

Loose Weave (Low Crosslinking Density):

Imagine a loosely woven fabric with large gaps between the threads. This fabric is more prone to wear and tear because it's less sturdy. Similarly, a urethane coating with low crosslinking density has fewer chemical bonds, making it less durable and more susceptible to damage.

Tight Weave (High Crosslinking Density):

Now, think of a tightly woven fabric with threads closely packed together, leaving minimal gaps. This fabric is stronger and more resistant to damage. In the same way, a urethane coating with high crosslinking density has many closely packed chemical bonds, resulting in a tougher, more durable, and resilient surface.

In essence, increasing the crosslinking density in urethane coatings enhances their strength and durability, much like how a tighter fabric weave produces a more robust material.

To visually represent this concept, here are two images illustrating the difference in crosslinking density:

Urethane coatings achieve their strength and durability through a chemical process called cross-linking, where polymer chains form bonds, creating a robust, interconnected network. In cold temperatures, this process slows down significantly, leading to:

• Extended Drying Times: The coating remains tacky for longer periods, increasing the risk of contamination.

• Incomplete Curing: The coating may not reach its full mechanical properties, resulting in reduced adhesion, flexibility, and chemical resistance.

How MAKO Cold Cure Accelerator Works

MAKO Cold Cure Accelerator enhances the cross-linking process by increasing the reaction rate between polymer chains, even in low temperatures. This ensures the coating achieves the proper cross-link density, which is vital for:

• Mechanical Strength: A well-cross-linked network provides superior hardness and resistance to mechanical wear.

• Chemical Resistance: Enhanced cross-linking improves the coating’s resistance to solvents and other chemicals.

• Flexibility: Maintaining appropriate cross-link density ensures the coating remains flexible without becoming brittle.

Real-World Performance: MAKO Cold Cure Accelerator

Consider the application of SharkThane Plus under cold conditions:

• Without Accelerator:

• Ambient Temperature: 32°F (0°C)

• Dry to Touch: Significantly delayed, potentially exceeding 24 hours

• Full Cure: May extend beyond acceptable timeframes, risking incomplete curing and compromised coating performance

• With MAKO Cold Cure Accelerator:

• Ambient Temperature: 32°F (0°C)

• Dry to Touch: Achieved within 30 Minutes in instead of hours. 

• Full Cure: Completed within 24–36 hours, ensuring optimal coating properties

Consequences of Not Using MAKO Cold Cure Accelerator

Applying urethane coatings without a cold cure accelerator in low temperatures can lead to:

• Extended Downtime: Prolonged drying and curing times delay project completion and service return.

• Coating Failures: Incomplete curing may result in reduced adhesion, flexibility, and overall durability.

• Surface Contamination: Extended tackiness increases the risk of dust and debris adherence, compromising the coating’s finish.

Benefits of Using MAKO Cold Cure Accelerator

Incorporating MAKO Cold Cure Accelerator into your cold-weather applications offers:

• Consistent Quality: Ensures coatings achieve their designed performance characteristics, regardless of ambient temperature.

• Increased Productivity: Reduces waiting times between application and service, allowing for more efficient project scheduling.

• Extended Application Season: Empowers you to undertake coating projects year-round, expanding your operational capabilities.

Application Guidelines:

To maximize the benefits of MAKO Cold Cure Accelerator:

1. Mixing: Add the recommended proportion of MAKO Cold Cure Accelerator to the urethane coating, ensuring thorough integration.(see instructions below)

2. Application: Proceed with standard application techniques, adhering to environmental and substrate preparation best practices.

3. Curing: Allow the coating to cure as per the accelerated schedule, noting that full properties are achieved within the adjusted timeframe.

Winter is here, and the success of your coating applications depends on adapting to the challenges posed by cold temperatures. By incorporating MAKO Cold Cure Accelerator into your process, you ensure that your urethane coatings achieve the necessary cross-link density for optimal performance, even in the harshest conditions. Don’t let the cold sabotage your work—equip yourself with MAKO Cold Cure Accelerator today.

Unleash the Speed: Introducing the New Mako Urethane Accelerator!

Meet the Mako Urethane Accelerator – the Speed Demon of Your Refinishing Arsenal!

In the deep blue, the Mako Shark reigns as the fastest and most relentless hunter, slicing through the water with unmatched velocity and precision. Inspired by this powerhouse of nature, we’re thrilled to introduce our latest innovation – the Mako Urethane Accelerator.

When time is your fiercest competitor, the Mako Urethane Accelerator becomes your ultimate ally. Just as the Mako Shark aggressively hunts down its prey with lightning speed, this accelerator propels your drying process to new heights, allowing you to conquer deadlines and tackle last-minute projects without breaking a sweat.

With the Mako Urethane Accelerator, you’re not just finishing projects; you’re dominating them. It’s time to experience the predatory power of the ocean’s fastest shark in your refinishing process.

Strike fast. Finish strong. Order your Mako Urethane Accelerator today and give your work the cutting-edge speed it deserves.

Directions for the Use of Mako Urethane Accelerator Instructions and Guidelines

Follow these instructions carefully to achieve optimal results when using Mako Urethane Accelerator:

• Mixing Ratio: Add 1/2 oz. of Mako Urethane Accelerator to 32 oz. of pre-mixed, catalyzed urethane.
• Performance Enhancement: This will achieve a 40% reduction in dry time for standard 24-hour dry coatings like Shark Thane Plus and Shark Thane Ultra.

Special Instructions for Shark Thane Quick Dry

For fast-drying coatings like Shark Thane Quick Dry, reduce the amount of Mako Urethane Accelerator in the mix by half to prevent exceeding the pot life.

Mixing Ratios

Use the following chart to determine the correct amount of Mako Urethane Accelerator for different volumes of pre-mixed urethane:

Dry Times and Pot Life

The chart below shows the approximate dry times and the reduced amount of Mako Urethane Accelerator for Shark Thane Quick Dry to prevent exceeding the pot life:

Mixing Tips

Additional Tips and Tricks

Safety Tips

• Wear Protective Gear: Always wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a respirator or mask.
• Ensure Proper Ventilation: Use the product in a well-ventilated area to avoid inhaling fumes. If working indoors, ensure that there is adequate airflow.
• Avoid Skin Contact: If the accelerator or urethane mixture comes into contact with your skin, wash the area immediately with soap and water.
• Store Properly: Store the Mako Urethane Accelerator in a cool, dry place, away from direct sunlight and heat sources. Ensure the container is tightly sealed when not in use.
• Handle with Care: Be careful when handling the accelerator, as spills can create hazards. Clean up any spills immediately following proper disposal guidelines.
• Dispose of Waste Properly: Follow local regulations for the disposal of chemical waste. Never pour unused product down drains or into the environment.