How to fix cracking in clay paint finishes: Tips and tricks

Hey fellow eco-warriors! :herb: I recently took the plunge and painted my living room with a beautiful clay paint from EarthHue. The color is stunning, and I love the natural, matte finish it gives. However, I’ve noticed some minor cracking in a few areas, especially where the wall gets a lot of sunlight. I’m a bit puzzled because I followed all the prep steps religiously - cleaned the walls, applied a primer, and even made sure the room was well-ventilated during application.

I’m curious if anyone else has faced similar issues with clay paints or other natural paint types. Specifically, I’m wondering if the cracking could be due to the paint drying too quickly or perhaps the surface wasn’t as compatible as I thought. I’ve used milk paint in the past with great success, but this is my first time with clay paint. Any tips or tricks to prevent or fix cracking would be greatly appreciated!

Also, if you’ve had a positive experience with a particular brand or type of clay paint that’s more forgiving, I’d love to hear about it. Let’s share our experiences and help each other achieve that perfect, crack-free finish with our eco-friendly paints. What’s your go-to solution for dealing with cracking in natural paint finishes?

Hey @EcoPainter88, I’ve had a similar experience with clay paints. The cracking can indeed be frustrating, especially after putting in all that prep work. From my experience, the key is in the application thickness and the drying environment. Clay paints prefer a cooler, more humid environment to dry slowly and evenly. If it’s drying too fast, especially in direct sunlight, that could definitely lead to cracking. Maybe try applying it in thinner layers and see if that helps?

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Thanks @GreenThumb99! I hadn’t considered the drying environment that much. I’ll try applying thinner layers and maybe even use a humidifier to control the room’s humidity. Do you think adding a bit of water to the paint could help with the application?

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@EcoPainter88, adding a bit of water can definitely help with the application, making it easier to spread thinly. Just be careful not to dilute it too much, as it can affect the paint’s coverage and finish. A little goes a long way!

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I’ve been using clay paints for a few years now, and I’ve found that the brand really matters. Some are more prone to cracking than others. I’ve had great success with EcoClay Paints. Their formula seems to be more flexible, which helps prevent cracking. Also, ensuring the surface is properly primed with a compatible primer is crucial. Maybe give EcoClay a try next time?

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@NatureLover23, thanks for the recommendation! I’ll definitely look into EcoClay Paints. Do you have any tips on primers that work well with their paints?

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@EcoPainter88, I usually go with EcoClay’s own primer. It’s specifically designed for their paint range and ensures the best adhesion and finish. It’s a bit pricier, but in my experience, it’s worth the investment for a crack-free finish.

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I had a similar issue and found that lightly sanding the cracked areas and applying a thin top coat helped blend and fix the cracks. It’s a bit of extra work, but it saved my walls! Also, ensuring the room temperature is consistent during drying can prevent future cracking. Good luck!

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@DIYQueen, thanks for the tip! I’ll try sanding and applying a thin top coat. Do you recommend any specific type of sandpaper for this?

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@EcoPainter88, I usually go with a fine-grit sandpaper, around 220-grit. It’s gentle enough not to damage the paint but effective for smoothing out the cracks. Just be sure to wipe away any dust before applying the top coat!

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Hey @EcoPainter88, I’ve had a similar experience with clay paints. The cracking can indeed be frustrating, especially after putting in all that prep work. From my experience, the key is in the application thickness and the drying environment. Clay paints prefer a cooler, more humid environment to dry slowly and evenly. If it’s drying too fast, especially in direct sunlight, that could definitely lead to cracking. Maybe try applying it in thinner layers and see if that helps?

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I totally get where you’re coming from. I’ve used EarthHue before and noticed that cracking too. What worked for me was mixing a bit of water into the paint to make it more pliable. It seemed to help the paint adhere better and dry more evenly. Just a thought, but maybe give that a try next time?

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Interesting points about the drying environment and paint consistency. I’ve also found that the type of primer used can make a big difference. Some primers just don’t play nice with clay paints. Maybe experiment with a different primer that’s specifically recommended for natural paints? Just a suggestion.

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Adding to what’s been said, I think the surface prep is crucial too. Even if you’ve cleaned the walls, sometimes old paint or residues can affect how the new paint adheres. I’ve had better luck with clay paints after a light sanding to really get the surface ready. It’s a bit more work but might be worth it for that crack-free finish.

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I’ve had a similar issue with clay paint cracking, especially in sunny spots. What worked for me was adding a bit of water to the paint to slow down the drying process. It seems counterintuitive, but it really helped reduce the cracking. Also, applying thinner coats made a big difference. Maybe give that a shot before switching brands?

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Interesting point about the brand making a difference. I’ve been using Natural Earth Paints and haven’t had any cracking issues, even in direct sunlight. They might be worth checking out. Also, I agree with the primer comment. A good primer can make or break the final result. It’s all about the prep work.

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I think the environment plays a big role too. If your room’s humidity is too low, it can cause the paint to dry too quickly and crack. I use a humidifier in the room I’m painting to keep the moisture level up. It’s a bit of a hassle, but it’s helped me avoid cracking. Plus, it’s good for the plants!

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I’ve had my fair share of battles with clay paint cracking too. What worked for me was mixing a bit of water into the paint before applying the top coat. It made the paint more pliable and less prone to cracking as it dried. Also, keeping the room at a steady, moderate temperature helped a lot. It’s a bit of a hassle, but worth it for that smooth finish.

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Interesting approach with the water mix. I tried something different by applying a thin layer of clear matte varnish over the cracked areas. It not only fixed the cracks but also added a bit of protection against future wear. Plus, it didn’t alter the paint’s natural look, which was a big win for me. Just make sure to test it on a small area first to see how it reacts with your specific paint.

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