For thicker denim like jeans, we've used 300F for 7s heavy pressure and it has been fine. Our transfers don't require a ton of heat or press time so its very versatile. The main thing you want is to make sure you're using enough pressure so that you see the denim fabric line after the heat press. Here's a video showing you adequate pressure. ruclips.net/video/oyj0As0Bz6Q/видео.html
what about a thicker denim? like jean jacket? what settings would you use and why?
For thicker denim like jeans, we've used 300F for 7s heavy pressure and it has been fine. Our transfers don't require a ton of heat or press time so its very versatile. The main thing you want is to make sure you're using enough pressure so that you see the denim fabric line after the heat press. Here's a video showing you adequate pressure. ruclips.net/video/oyj0As0Bz6Q/видео.html