Mixing John Deere Paint: Hardener And Reducer Ratios

John Deere paint is often used to paint tractors and is available in different colours, including green and yellow. The paint can be mixed with a hardener and reducer, but it is important to follow the manufacturer's instructions and safety precautions. The paint manufacturer recommends a paint-to-reducer ratio of 10:1, while the overall ratio of paint to reducer to hardener is recommended as either 8:2:1 or 8:1:1. It is also possible to use the paint with a thinner, and John Deere paint requires the use of the John Deere thinner for the best results.

Mixing ratios

When mixing John Deere paint, hardener, and reducer, it is important to follow the correct ratios for a successful application and finish. The mixing ratios may vary depending on the type of paint and hardener used, as well as individual preferences and application methods. Here is a detailed guide on the recommended mixing ratios:

John Deere Paint to Reducer: The ratio of paint to reducer can vary depending on the specific paint type and application method. John Deere paint is available in different variants, including high VOC and low VOC types, which may require different mixing ratios. For high VOC metallic auto paint, it is recommended to follow the paint manufacturer's instructions for the reducer ratio. In the case of low VOC John Deere paint, the manufacturer suggests a mix of 4 parts paint to 1 part thinner (a 4:1 ratio). Another source mentions a ratio of 10 parts paint to 1 part thinner for John Deere paint, which may apply to certain paint variants.

John Deere Paint to Hardener: The ratio of paint to hardener is typically recommended as 8 parts paint to 1 part hardener (an 8:1 ratio). However, some users suggest that this ratio can be adjusted based on personal preference and the desired results. It is possible to add more hardener, especially when mixing smaller batches for brush touch-ups, as this will speed up the curing process.

Overall Ratio (Paint:Reducer:Hardener): When combining all three components, the most commonly recommended ratio is 8 parts paint, 2 parts reducer, and 1 part hardener (an 8:2:1 ratio). Another suggested ratio is 8:1:1, which indicates equal parts of reducer and hardener.

It is important to note that the mixing ratios may vary depending on individual preferences, application methods, and the specific paint, hardener, and reducer products used. Always refer to the manufacturer's instructions and recommendations, and conduct small test mixes to ensure the desired results.

Recommended thinner

John Deere paint is a synthetic enamel. While some users have reported that they do not thin the paint before application, others have recommended using a thinner for a professional finish. The recommended thinner for John Deere paint is the John Deere thinner or "reducer". The paint can also be thinned with Klean Strip Alphatic Naptha, which is available at Lowes. One user has also reported using Medium Reducer from a local parts store.

The John Deere reducer is available in gallon sizes, with the product code TY25650. The thinner has been described as not too expensive, costing around $25.

It is important to note that the John Deere hardener is toxic as it contains isocyanates. Therefore, if using the thinner, it is recommended to use a purified breathing air system for spray application in a confined space. Alternatively, the paint can be brushed or rolled on to avoid atomization by a spray gun.

The ratio of thinner to paint is important to ensure the paint is thin enough to flow through a spray gun but still leaves a nice coat. One user recommends using a Zahn Cup to measure the viscosity of the thinned paint. The paint is thin enough when it takes 5-10 seconds for the paint to exit the cup when dipped into the thinned paint. If it takes longer, more thinner is needed.

Hardener alternatives

The John Deere finish is formulated to work only with the Valspar hardener. The Valspar REN3001 hardener is available in amounts to treat 1 gallon of paint. However, if you are looking for an alternative hardener to use with John Deere paint, you may be able to use more hardener when mixing small batches for brush touch-ups. This will cause the paint to kick faster.

Additionally, the reducer from John Deere, TY25650, is available in 1-gallon amounts. However, it is not necessary to use a reducer with John Deere paint as the paint is already thin enough to spray alone or with the hardener.

If you are looking for a fast-drying hardener, you can use fast or extra-fast drying hardeners at low temperatures. At high temperatures, slow hardeners are recommended to keep the paint film open.

For a reasonably priced alternative, you can use PPG Commercial Performance paint, which is durable and can be applied over two coats of epoxy primer.

Durability

John Deere paint is known for its durability, but proper mixing with a hardener and reducer is key to achieving a long-lasting finish. The paint is formulated to work with specific hardeners and reducers, and using the recommended products and ratios will ensure optimal results.

The Valspar REN3001 hardener is commonly used with John Deere paint, and users have reported good results with this combination. This hardener enhances the durability of the paint, making it more chemical-resistant and improving its curing process. While the paint can be used without a hardener, the addition of Valspar REN3001 improves its performance and protection.

John Deere paint is available in both high and low VOC (volatile organic compound) varieties, and the mixing ratios may vary depending on the type of paint. For high VOC paint, a common ratio is 8:2:1 or 8:1:1 for paint, reducer, and hardener, respectively. For low VOC paint, the recommended ratio is 4:1, with some users suggesting the addition of 1/2 part hardener. It's important to follow the manufacturer's instructions for the specific type of paint being used.

The durability of the paint finish is also influenced by factors such as cure time, application technique, and surface preparation. Allowing extra cure time before handling or assembling painted parts is crucial to prevent chipping and flaking. Proper surface preparation, such as priming and etching, also contributes to the durability of the paint finish.

While John Deere paint is known for its durability, it's important to note that it may not meet the same standards as automotive single-stage urethanes. However, with proper mixing, application, and cure time, users can achieve a reasonably durable finish that is suitable for tractors and other equipment.

Safety

When mixing John Deere paint hardener and reducer, it is important to take the necessary safety precautions to protect yourself from potential hazards. Here are some detailed safety guidelines to follow:

Always wear the appropriate safety gear when working with paint hardeners and reducers. This includes a respirator with an external air supply to prevent the inhalation of toxic fumes. The hardener, in particular, contains strong chemicals that can be harmful if inhaled. It is also recommended to wear protective gloves and eye goggles to shield your skin and eyes from splatters or spills. Ensure you are working in a well-ventilated area or, even better, perform the mixing outdoors to minimise the risk of inhaling fumes.

Mixing Instructions

Before beginning, carefully read and follow the instructions provided by the manufacturer on the paint can. John Deere paint is typically mixed with a hardener and reducer, and the manufacturer will specify the recommended ratios for these components. The standard ratio for John Deere paint is 10 parts paint to 1 part thinner/reducer, but this may vary depending on the specific product and application method.

Some users have reported different ratios, such as 8:2:1 or 8:1:1 (paint:reducer:hardener), but it is important to exercise caution when deviating from the manufacturer's instructions. Always mix the paint in small batches, as this will reduce waste and help you achieve the desired consistency. Additionally, be mindful of the drying time, as John Deere enamel paint does not cure overnight like urethanes.

Product Compatibility

It is important to use the correct products designed to work with John Deere paint. The paint is formulated to work specifically with the Valspar hardener (Valspar REN3001), and using other hardeners may not yield satisfactory results. The John Deere reducer (TY25650) is also recommended, although some users have found it unnecessary due to the paint's thin consistency. If you choose to use alternative products, always test them on a small batch first to ensure compatibility and achieve the desired finish.

Storage and Disposal

Properly store and dispose of the paint, hardener, and reducer according to the manufacturer's instructions. Hardener typically has a limited shelf life after opening, so store it in a refrigerator to extend its lifespan. Always dispose of any leftover paint, hardener, or reducer responsibly, following the guidelines provided by your local waste management authority.

When applying the paint, take the necessary precautions to protect yourself and the surrounding environment. Avoid overspray, as it can be wasteful and harmful to nearby objects or surfaces. Ensure you are working in a clean space with proper ventilation, and follow the safety guidelines for using a spray gun or brush application. Always clean your equipment thoroughly after use, as the paint, hardener, and reducer can be challenging to remove once dried.

Frequently asked questions