C320 POLYURETHANE HARDENER

Description of Polyurethane Hardener C320 for Paints and Varnishes Used on Wood and MDF (2:1 Ratio)

Product Overview: The C320 polyurethane hardener is designed for use with paints and varnishes on wood and MDF surfaces. This hardener enhances the durability, strength, and protective qualities of the coatings, ensuring a high-quality finish that preserves the natural beauty of the substrate. It provides excellent resistance to scratches, chemicals, and environmental factors, making it ideal for both interior and exterior applications.

Key Features:

• Enhanced Durability: Increases the longevity and robustness of paints and varnishes, protecting surfaces from daily wear and tear.

• Superior Adhesion: Ensures strong adhesion between the coating and the wood or MDF surface, promoting a smooth and even finish.

• Chemical Resistance: Offers protection against various chemicals, preventing damage and degradation over time.

• Scratch Resistance: Improves the surface's resistance to scratches and abrasions, maintaining its aesthetic appeal.

• Weather Resistance: Provides excellent resistance to environmental factors, making it suitable for both indoor and outdoor use.

Mixing Ratio: The recommended mixing ratio for the C320 polyurethane hardener with paints and varnishes is 2:1 by volume. This ratio ensures optimal performance and the best possible results.

Application Instructions:

1. Preparation: Ensure the wood or MDF surface is clean, dry, and free from dust and grease.

2. Mixing: Mix 2 parts of the paint or varnish with 1 part of the C320 polyurethane hardener by volume. Stir thoroughly until a uniform mixture is achieved.

3. Application: Apply the mixed product using a suitable spray gun, brush, or roller. Ensure even coverage for the best results.

4. Drying Time: Allow sufficient drying time as per the paint or varnish specifications before handling or applying additional coats.

Safety Precautions:

• Use appropriate personal protective equipment (PPE) such as gloves, goggles, and a respirator during application.

• Ensure proper ventilation in the working area to avoid inhaling fumes.

• Keep the product away from heat, sparks, and open flames.

Storage: Store the C320 polyurethane hardener in a cool, dry place, away from direct sunlight and sources of heat. Ensure the container is tightly closed when not in use to prevent contamination and evaporation.

Packaging: Available in various packaging sizes to suit different project needs. Refer to the label for detailed information on volume and usage instructions.

The C320 polyurethane hardener is essential for achieving a high-quality, durable finish on wood and MDF surfaces. By following the recommended mixing ratio and application guidelines, you can ensure the best performance and long-lasting results.

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The Polyurethane Hardener is a crucial component for enhancing the performance and durability of your polyurethane-based coatings. This Hardener for Polyurethane Paint is specifically formulated to improve the curing process, ensuring a robust and long-lasting finish.

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As a top-quality Polyurethane Paint Hardener, it is ideal for use in a variety of applications, including Polyurethane Wood Coating. It functions effectively as a Polyurethane Hardener for Wood, enhancing the adhesion and longevity of your Polyurethane Wood Paint Hardener.

Designed to work seamlessly with Polyurethane Primer Activator systems, this hardener ensures that your Polyurethane Primer Hardener achieves the optimal chemical reaction, leading to superior coating performance. Its role as a Polyurethane Coating Hardener for Wood is essential in achieving a durable, high-quality finish that withstands wear and environmental factors.

Whether you're working on a Wood Coating project or applying Polyurethane Hardener for Wood Coating, this hardener delivers exceptional results. It not only improves the cure rate but also enhances the overall finish, making it an indispensable part of your finishing system. For reliable and effective Polyurethane Hardener for Wood Paint, choose our premium solution for superior performance and durability.

Symptoms

• Soft Cure
• Brittle
• No Cure

• Insufficient Physical Properties
• Cracking
• Excessive Shrinkage During Cure

The mix ratios for Epoxies and Polyurethanes are usually specified as ratios by weight and/or volume. These ratios are determined by product chemistry. The reactive parts are the resin and hardener, being the liquid components of the formulation. The fillers, if present, do not take part in the reaction.

The mix ratio specified for filled systems takes into consideration the amount of fillers present in a given volume of the homogeneous material. If the fillers settled to the bottom of the container and the material is not mixed thoroughly, product taken from the top of the container will be "liquids rich". In this case, applying the specified mix ratio will result in an off ratio product that will not cure or if it cures, will be deficient in cured properties.

Do the following to quickly confirm that material (resin and hardener) is good:

1. Take a clean plastic container.
2. Place the container on a gram scale and tare.
3. Mix the resin in its container thoroughly and pour 200grms into the empty container on the scale.
4. Thoroughly mix the hardener in its container.
5. Weigh the appropriate amount of hardener, as indicated on the data sheet, into the plastic container on top of the resin.
6. Thoroughly mix the resin/hardener together, scraping the sides of the container to make certain that all the hardener is thoroughly and evenly dispersed in the resin.
7. Pour any excess material out into another container, leaving only the amount of product indicated on the data sheet (next to the heading "Gel time").
8. Gel the mixture according to the cure instructions on the data sheet. Check the sample after the specified gel time.

Results:

If, after the specified gel time, the sample is solid and firm throughout, the product is reacting as it should and the problem is elsewhere.

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If, after the specified gel time, the sample is soft throughout, re-check the mix ratio that was used to prepare the sample. If the correct mix ratio was used and the sample was gelled at the specified temperature, there is something wrong with the product and the supplier should be contacted.

Soft spots evident within the gelled sample indicate that the resin and hardener were not mixed thoroughly enough and the test should be repeated.

Some handy conversion formulas:

Calculate the Sg (specific gravity) of the mixed material

Weight of Part "A" + Weight of Part "B" (according to stated mix ratio)

Weight of "A" + Weight of "B" = Sg Of Mixed Material

Sg of Part "A" Sg of Part "B"

To convert Mix Ratios from "Parts by Weight" to "Parts by Volume"

PBW of Part "A" X Sg of Part "B" = Part By Volume of Part "A" to 1 Part by Volume of Part "B"

PBW of Part "B" Sg of Part "A"

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