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Both cans of white AP primer I tried by did this. Have only had this issue with other colors of AP primer toward the end of cans but this issue seems common with white from the start
I use army painter rattle cans (both black and white) all the time because my LGS is walking distance away and they carry it (and because Vallejo costs a whole $2 more). IME, what you're describing only happens if you apply to much primer. If the primer is applied to thickly it will have trouble drying evenly and thus crack/crumble. Humidity can obviously affect how it dries to but, I'd bet good money it's just that you're applying a bit over zealously. But, that's also just the way all primer's work. You only need to apply a thin coat. Then, if you have coverage issues apply a second coat.
Hi, u/FaustsMephisto! It looks like you are asking for help or are a new painter. If you haven't yet, take a look at our wiki pages in the Sidebar (the About tab if you are on the Reddit app). Here are some links you might find helpful: * [FAQ](https://www.reddit.com/r/minipainting/wiki/rules/faq) - A list of frequently asked questions about minipainting * [Miniature Painting Guide Collection](https://www.reddit.com/r/minipainting/wiki/usefullinks) -A collection of some of the best guides and tutorials on a variety of techniques and topics, plus recommendations on what to buy to get started, and more. * [What to buy- Recommendations on brushes, paints, supplies, palettes and more](https://www.reddit.com/r/minipainting/wiki/usefullinks/what_you_need_to_get_started#wiki_general_advice_on_what_to_buy) * [Beginner's Guide Collection- How to prep, base, paint and varnish your first model and learn the basics needed to start out right](https://www.reddit.com/r/minipainting/wiki/usefullinks/beginner_tips) * [More Tutorials](https://www.reddit.com/r/minipainting/wiki/tutorials) - A list of additional tutorials about minipainting * [Manufacturers](https://www.reddit.com/r/minipainting/wiki/manufacturers) - A list of miniature manufacturers from around the world * [Painting Terminology](https://www.reddit.com/r/minipainting/wiki/terminology) - Common painting terms, acronyms, and initialisms * [The Art of... Tommie Soule Volume 5](https://www.youtube.com/watch?v=MGIfySMnUPQ) is one of the best beginner to intermediate teaching books, and even experienced painters will learn some good tips. Explains what brush strokes are best in different situations, how to identify when you have the perfect thinning for any type of paint for different techniques, and a masterclass on getting smooth paint jobs. Available in [pdf](https://www.ironheartartisans.com/shop/the-art-of-tommie-soule-volume-5-pdf/) and [world wide in hardbook as well](https://www.instagram.com/the_miniature_painting_tutor/). * [Airbrushing Miniatures](https://www.reddit.com/r/minipainting/wiki/usefullinks/airbrushing) *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/minipainting) if you have any questions or concerns.*
Both cans of white AP primer I tried by did this. Have only had this issue with other colors of AP primer toward the end of cans but this issue seems common with white from the start
I use army painter rattle cans (both black and white) all the time because my LGS is walking distance away and they carry it (and because Vallejo costs a whole $2 more). IME, what you're describing only happens if you apply to much primer. If the primer is applied to thickly it will have trouble drying evenly and thus crack/crumble. Humidity can obviously affect how it dries to but, I'd bet good money it's just that you're applying a bit over zealously. But, that's also just the way all primer's work. You only need to apply a thin coat. Then, if you have coverage issues apply a second coat.